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IC Engine (Internal combustion engine) MCQ

1. What is the mechanism called that does work by means of a ready source of energy?

Motor

Combustion

Automobile

Engine

Answer

Correct Answer: Motor

Note: This Question is unanswered, help us to find answer for this one

2. What is Mechanical Injection?

A device that uses air pressure to inject

A device that uses mechanicalforce to inject

Injection with the fuel-valve operated mechanically from a cam.

A device that uses manual force to inject.

Answer

Correct Answer: Injection with the fuel-valve operated mechanically from a cam.

Note: This Question is unanswered, help us to find answer for this one

3. What is the ratio of brake horsepower to indicated horsepower?

Horsepower

Indicated horsepower

Mechanical efficiency

Brake horsepower

Answer

Correct Answer: Mechanical efficiency

Note: This Question is unanswered, help us to find answer for this one

4. What does MEP stand for?

Mean Effective Pressure

Minimum Efficiency Pressure

Mean Endurance Pressure

Main Engine Pump

Answer

Correct Answer: Mean Effective Pressure

Note: This Question is unanswered, help us to find answer for this one

5. What is a manometer?

A device that measures the mass of an object.

A U-shaped glass tube, partly filled with a liquid, water or mercury, employed to measure pressure.

A device that measures the density of an object.

A device that measures the volume of an object.

Answer

Correct Answer: A U-shaped glass tube, partly filled with a liquid, water or mercury, employed to measure pressure.

Note: This Question is unanswered, help us to find answer for this one

6. What is a manifold?

A large room

A machine with many moving parts

An event with many participants

A pipe with a number of inlets to, or outlets from, the several cylinders of an engine.

Answer

Correct Answer: A pipe with a number of inlets to, or outlets from, the several cylinders of an engine.

Note: This Question is unanswered, help us to find answer for this one

7. What is a lubricating pump?

A device used to pump water

A device used to measure the pressure of a fluid.

A pump which handles lubricating oil in an engine.

A device used to pump oil

Answer

Correct Answer: A pump which handles lubricating oil in an engine.

Note: This Question is unanswered, help us to find answer for this one

8. What is the main purpose of a lubricant?

To reduce friction

To stop motion

To increase friction

To create motion

Answer

Correct Answer: To reduce friction

Note: This Question is unanswered, help us to find answer for this one

9. What is the useful output of an engine at a given moment?

Speed

Horsepower

Load

Torque

Answer

Correct Answer: Load

Note: This Question is unanswered, help us to find answer for this one

10. What is the removable inner engine cylinder in contact with the piston called?

Liner

Slave

Master

Crankshaft

Answer

Correct Answer: Liner

Note: This Question is unanswered, help us to find answer for this one

11. What is linear motion?

Motion that is not changing.

Motion in a curved line.

Motion in a straight line.

Motion at a constant speed.

Answer

Correct Answer: Motion in a straight line.

Note: This Question is unanswered, help us to find answer for this one

12. What is a lean mixture?

A mixture in which the proportion of air to fuel cannot be determined.

A mixture in which the proportion of air to fuel is equal to that theoretically necessary for completes combustion.

A mixture in which the proportion of air to fuel is greater than that theoretically necessary for completes combustion.

A mixture in which the proportion of air to fuel is less than that theoretically necessary for completes combustion.

Answer

Correct Answer: A mixture in which the proportion of air to fuel is greater than that theoretically necessary for completes combustion.

Note: This Question is unanswered, help us to find answer for this one

13. What does the lb. abbreviation stand for?

Long ton

Pennyweight

Pound

Litre

Answer

Correct Answer: Pound

Note: This Question is unanswered, help us to find answer for this one

14. What is a Lanova cell?

A type of bacteria

A special combustion chamber for diesel engines of high rotary speeds.

A Russian aircraft manufacturer

The capital of Latvia

Answer

Correct Answer: A special combustion chamber for diesel engines of high rotary speeds.

Note: This Question is unanswered, help us to find answer for this one

15. What is the land?

A large area of uncultivated ground

An area of level ground

The portion of the piston between two grooves carrying the piston rings.

The metal ring placed in the groove of a piston to provide a seal

Answer

Correct Answer: The portion of the piston between two grooves carrying the piston rings.

Note: This Question is unanswered, help us to find answer for this one

16. What is a shim?

A thin metal sheet used to fill in spaces between objects.

A tool used to sharpen knives

A type of bread

A unit of measurement.

Answer

Correct Answer: A thin metal sheet used to fill in spaces between objects.

Note: This Question is unanswered, help us to find answer for this one

17. What does the word "laminated" mean?

Made of thin layers

Covered in a sticky substance

To beat severely

Having a smooth surface

Answer

Correct Answer: Made of thin layers

Note: This Question is unanswered, help us to find answer for this one

18. What is kinetic energy?

The energy of a moving body due to its mass.

The energy of a moving body due to its mass and velocity.

The energy of a moving body.

The energy of a moving body due to its velocity.

Answer

Correct Answer: The energy of a moving body due to its mass and velocity.

Note: This Question is unanswered, help us to find answer for this one

19. What is a unit of energy equal to a continuous flow of one kilowatt for one hour?

Kilowatt

Watt-hour

Joule

Kilowatt-hour

Answer

Correct Answer: Kilowatt-hour

Note: This Question is unanswered, help us to find answer for this one

20. What does "Kilowatt" mean?

A unit of length equal to one thousand meters

A unit of time equal to one thousand seconds

An electrical unite of measure equal to one thousand watts.

A unit of weight equal to one thousand grams

Answer

Correct Answer: An electrical unite of measure equal to one thousand watts.

Note: This Question is unanswered, help us to find answer for this one

21. What does kilowatt measure?

Volume

Weight

Electrical unite

Length

Answer

Correct Answer: Electrical unite

Note: This Question is unanswered, help us to find answer for this one

22. What is the keyway?

A type of lock

A tennis move

The machined slot in a shaft or hub of a wheel to take a steel key.

The capital of Sudan

Answer

Correct Answer: The machined slot in a shaft or hub of a wheel to take a steel key.

Note: This Question is unanswered, help us to find answer for this one

23. What does a keeper dowel or pin do?

Keep piston rings from moving from an assigned position

Provide extra support for the piston rings

Keep the piston rings from expanding

Keep the piston rings lubricated

Answer

Correct Answer: Keep piston rings from moving from an assigned position

Note: This Question is unanswered, help us to find answer for this one

24. What is a Jumper?

A short, lightweight sweater.

A person who attempts to commit suicide by jumping from a high place.

A water-pipe connection between a cylinder head and the cylinder jacket or the water-jacketed exhaust manifold.

A device used to start a car by providing an electrical connection between the battery and the starter motor.

Answer

Correct Answer: A water-pipe connection between a cylinder head and the cylinder jacket or the water-jacketed exhaust manifold.

Note: This Question is unanswered, help us to find answer for this one

25. What is the finished part of a shaft that rotates in a bearing called?

Spindle

Journal

Crankshaft

Transmission

Answer

Correct Answer: Journal

Note: This Question is unanswered, help us to find answer for this one

26. What is a jet?

A stream of fuel or air coming from such an orifice

A large orifice used to control the flow of fuel or air

A small orifice used to control the flow of fuel or air

A small orifice used to increase the flow of fuel or air

Answer

Correct Answer: A small orifice used to control the flow of fuel or air

Note: This Question is unanswered, help us to find answer for this one

27. What is a Jerk Pump?

A fuel pump which injects fuel into the cylinder by action of a cam having a sharp nose.

A pump which injects fuel into the cylinder by action of a cam having a blunt nose.

A fuel pump which injects fuel into the cylinder by action of a cam having a rounded nose.

A fuel pump which doesn’t inject fuel into the cylinder by action of a cam having a sharp nose.

Answer

Correct Answer: A fuel pump which injects fuel into the cylinder by action of a cam having a sharp nose.

Note: This Question is unanswered, help us to find answer for this one

28. What is the purpose of a jacket surrounding an engine cylinder?

To reduce engine noise

To increase engine speed

To improve engine performance

To permit circulation of cooling water

Answer

Correct Answer: To permit circulation of cooling water

Note: This Question is unanswered, help us to find answer for this one

29. What is the main use of a Jack?

As a doorstop

To turn the flywheel to a desired position

To lift or move a heavy object

To cut wood

Answer

Correct Answer: To lift or move a heavy object

Note: This Question is unanswered, help us to find answer for this one

30. What does the word "Intermittent" mean?

Infrequent

Permanent

Occurring at intervals.

Continuous

Answer

Correct Answer: Occurring at intervals.

Note: This Question is unanswered, help us to find answer for this one

31. What is an integral?

A decimal

A whole number

A fraction

An indivisible part of a whole, constituting a completed whole.

Answer

Correct Answer: An indivisible part of a whole, constituting a completed whole.

Note: This Question is unanswered, help us to find answer for this one

32. What are the two strokes of a Piston?

Both are not the strokes of a Piston

Only intake stroke

Only suction stroke

Intake stroke and suction stroke

Answer

Correct Answer: Intake stroke and suction stroke

Note: This Question is unanswered, help us to find answer for this one

33. What is the inlet valve?

The valve through which lubricating oil is admitted to the cylinder of a four-stroke engine.

The valve through which exhaust gases escape from the cylinder of a four-stroke engine.

The valve through which air or the air-fuel mixture is admitted to the cylinder of a four-stroke engine.

The valve through which coolant is admitted to the cylinder of a four-stroke engine.

Answer

Correct Answer: The valve through which air or the air-fuel mixture is admitted to the cylinder of a four-stroke engine.

Note: This Question is unanswered, help us to find answer for this one

34. What is the inlet cam?

The cam that controls the operation of the intake valve in a four-stroke engine.

The cam that controls the operation of the air intake valve in a two-stroke engine.

The cam that controls the operation of the air inlet valve in a four-stroke engine.

The cam that controls the operation of the exhaust valve in a four-stroke engine.

Answer

Correct Answer: The cam that controls the operation of the air inlet valve in a four-stroke engine.

Note: This Question is unanswered, help us to find answer for this one

35. What is the function of an injection pump?

Inject water into the radiator

Fill the tires with air

Inject oil into the transmission

Inject fuel oil into the combustion space of a diesel engine

Answer

Correct Answer: Inject fuel oil into the combustion space of a diesel engine

Note: This Question is unanswered, help us to find answer for this one

36. What is injection?

The process of making gasoline out of crude oil

The forcing of fuel oil into the combustion chamber of a diesel engine by means of high pressure.

The exposing of an image to light in a camera

The method of cooling an engine with water and coolant

Answer

Correct Answer: The forcing of fuel oil into the combustion chamber of a diesel engine by means of high pressure.

Note: This Question is unanswered, help us to find answer for this one

37. Inertia is the tendency of a body to ______?

Speed up

Maintain its existing velocity

Slow down

Stop

Answer

Correct Answer: Maintain its existing velocity

Note: This Question is unanswered, help us to find answer for this one

38. What is an Indicator?

An animal that gives warning of the approach of danger.

Measure of central tendency

A photographic film

Instrument used to investigate the pressures inside an engine cylinder.

Answer

Correct Answer: Instrument used to investigate the pressures inside an engine cylinder.

Note: This Question is unanswered, help us to find answer for this one

39. What is the indicated horsepower?

The power required to overcome friction.

The power exerted by a piston on the connecting rod.

The horsepower developed in the engine cylinder, as calculated from an indicator diagram.

The power transmitted by a gear train.

Answer

Correct Answer: The horsepower developed in the engine cylinder, as calculated from an indicator diagram.

Note: This Question is unanswered, help us to find answer for this one

40. What is the rotating part of a centrifugal pump or blower called?

Impeller

Inlet valve

Exhaust valve

Piston

Answer

Correct Answer: Impeller

Note: This Question is unanswered, help us to find answer for this one

41. What is idling?

Engine running without a load at the highest speed possible.

Engine running with a load at the lowest speed possible.

Engine running without a load at the lowest speed possible.

Engine running at the highest speed possible.

Answer

Correct Answer: Engine running without a load at the lowest speed possible.

Note: This Question is unanswered, help us to find answer for this one

42. What does the term "hydraulic" pertain to?

Movement of and by air

Movement of and by earth

Movement of and by water, also by other liquids, such as oils.

Movement of and by fire

Answer

Correct Answer: Movement of and by water, also by other liquids, such as oils.

Note: This Question is unanswered, help us to find answer for this one

43. What is hunting?

The activity of searching determinedly for someone or something

Erratic variation of the speed of the governor, also of the engine.

A sport in which animals are chased and killed for recreation

The practice of killing animals for food or to remove them from an area

Answer

Correct Answer: Erratic variation of the speed of the governor, also of the engine.

Note: This Question is unanswered, help us to find answer for this one

44. One horsepower is equal to ____?

1,000 ft-lb. per min.

33,000 ft-lb. per min.

30,000 ft-lb. per min.

15,000 ft-lb. per min.

Answer

Correct Answer: 33,000 ft-lb. per min.

Note: This Question is unanswered, help us to find answer for this one

45. What is the rate at which work is done?

One horsepower = 33,000 ft-lb. per min.

A unit for measuring power.

Rate at which work is done.

One horsepower = 33,000 ft-lb. per min.

Abbreviated hp.

Answer

Correct Answer: Rate at which work is done.

Note: This Question is unanswered, help us to find answer for this one

46. What is a helix?

An invasive species of snail

A shape

A line cut on a cylindrical surface shaped like a screw thread.

A mineral

Answer

Correct Answer: A line cut on a cylindrical surface shaped like a screw thread.

Note: This Question is unanswered, help us to find answer for this one

47. What does it mean if something is helical?

Having the shape of a spiral.

Having the shape of a cog.

Having the shape of a wheel.

Having the shape of a helix, or screw.

Answer

Correct Answer: Having the shape of a helix, or screw.

Note: This Question is unanswered, help us to find answer for this one

48. What is the unit of heat value?

Calories per second

Joules per second

Btu per Pound

Btu per second

Answer

Correct Answer: Btu per Pound

Note: This Question is unanswered, help us to find answer for this one

49. What is the heat value?

The rate of heat flow

The heat developed by the combustion of one pound of fuel

The average temperature of the Earth's surface

The amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit

Answer

Correct Answer: The heat developed by the combustion of one pound of fuel

Note: This Question is unanswered, help us to find answer for this one

50. What is the unit of heat?

Calorie (cal)

Watt (W)

Joule (J)

British thermal unit (Btu)

Answer

Correct Answer: British thermal unit (Btu)

Note: This Question is unanswered, help us to find answer for this one

51. What is heat?

A form of energy

A lightbulb

The element of fire

A measure of hotness

Answer

Correct Answer: A form of energy

Note: This Question is unanswered, help us to find answer for this one

52. What is a governor?

A mechanism used to control the speed of an engine.

A device that closes and opens a valve

A state official with ranking authority

A machine that produces rotary motion

Answer

Correct Answer: A mechanism used to control the speed of an engine.

Note: This Question is unanswered, help us to find answer for this one

53. What is a gasket?

A device used to measure the volume of a liquid

A type of adhesive tape

Packing placed between two surfaces that must have a leakproof joint.

A tool used in carpentry

Answer

Correct Answer: Packing placed between two surfaces that must have a leakproof joint.

Note: This Question is unanswered, help us to find answer for this one

54. What is the term for the support on which a lever turns?

Weight

Point

Fulcrum

Center

Answer

Correct Answer: Fulcrum

Note: This Question is unanswered, help us to find answer for this one

55. What is the function of the fuel pump?

Injects the fuel into the engine

Stores the fuel

Start the engine

Delivers the fuel to the injector

Answer

Correct Answer: Delivers the fuel to the injector

Note: This Question is unanswered, help us to find answer for this one

56. What is the noise produced in the cylinder of a diesel engine during combustion called?

Engine knock

Timing knock

Fuel knock

Lack of knock

Answer

Correct Answer: Fuel knock

Note: This Question is unanswered, help us to find answer for this one

57. What is the device which sprays the fuel into the cylinder called?

Carburetor

Ignition Coil

Fuel Pump

Fuel Injector

Answer

Correct Answer: Fuel Injector

Note: This Question is unanswered, help us to find answer for this one

58. What is friction horsepower?

The power consumed within the engine from friction between its parts.

The power lost to friction when an object is moved.

The power required to move an object across a surface.

The power generated by the engine to overcome friction.

Answer

Correct Answer: The power consumed within the engine from friction between its parts.

Note: This Question is unanswered, help us to find answer for this one

59. What is friction?

The force that causes two surfaces to slide past each other.

The force that one object exerts on another object.

A measure of the amount of wear on a surface.

The resistance to relative motion between two bodies in contact.

Answer

Correct Answer: The resistance to relative motion between two bodies in contact.

Note: This Question is unanswered, help us to find answer for this one

60. What is the part of an engine between the cylinders and the bedplate?

Cylinders

Framing

Crankcase

Bedplate

Answer

Correct Answer: Framing

Note: This Question is unanswered, help us to find answer for this one

61. Which of the following is NOT a type of engine?

Wankel engine

Four-stroke engine

Two-stroke engine

Diesel engine

Answer

Correct Answer: Four-stroke engine

Note: This Question is unanswered, help us to find answer for this one

62. What is the unit in which work is measured?

Watt

Newton

Foot pound

Joule

Answer

Correct Answer: Foot pound

Note: This Question is unanswered, help us to find answer for this one

63. What is the flywheel responsible for?

To keep the crankshaft in place

Gives the crankshaft momentum to carry the pistons through the compression stroke.

To connect the crankshaft to the pistons

To provide power to the crankshaft

Answer

Correct Answer: Gives the crankshaft momentum to carry the pistons through the compression stroke.

Note: This Question is unanswered, help us to find answer for this one

64. What is Fluctuation?

Oscillation

Upheaval

Alteration

Variation in value

Answer

Correct Answer: Variation in value

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65. What does the term "Fit" mean in regards to machined engine parts?

The desired positive or negative clearance between the surfaces of two machined engine parts.

When two engine parts are too close together.

The process of making two engine parts match each other

Two matching engine parts that have been machined

Answer

Correct Answer: The desired positive or negative clearance between the surfaces of two machined engine parts.

Note: This Question is unanswered, help us to find answer for this one

66. What does a filter do?

Adds dirt and impurities to air, oil, or water.

Remove dirt and other impurities from air, oil, or water.

Creates air, oil, and water.

Sorts air, oil, and water.

Answer

Correct Answer: Remove dirt and other impurities from air, oil, or water.

Note: This Question is unanswered, help us to find answer for this one

67. The expansion period is the portion of the power stroke during which:?

The spark plug fires.

The engine is idling.

The combustion gases expand from the movement of the piston and thus do work.

The piston is at the top of its stroke.

Answer

Correct Answer: The combustion gases expand from the movement of the piston and thus do work.

Note: This Question is unanswered, help us to find answer for this one

68. What is the function of an exhaust valve?

The valve through which the unburnt gases are allowed to pass out to the intake manifold.

The valve through which the unburnt gases are allowed to pass out to the exhaust manifold.

The valve through which the unburnt gases are allowed to pass out to the cylinder head.

The valve through which the burnt gases are allowed to pass out to the exhaust manifold.

Answer

Correct Answer: The valve through which the burnt gases are allowed to pass out to the exhaust manifold.

Note: This Question is unanswered, help us to find answer for this one

69. What is an exhaust pyrometer?

A machine used to generate exhaust

An instrument used to measure the temperature of the exhaust

A tool used to mix exhaust

A device used to measure the amount of exhaust

Answer

Correct Answer: An instrument used to measure the temperature of the exhaust

Note: This Question is unanswered, help us to find answer for this one

70. What is the exhaust manifold?

The pipe that collects the unburnt gases as they are expelled from the cylinders.

The pipe that burns the unburnt gases before they are expelled from the cylinders.

The pipe that cools the burnt gases before they are expelled from the cylinders.

The pipe that collects the burnt gases as they are expelled from the cylinders.

Answer

Correct Answer: The pipe that collects the burnt gases as they are expelled from the cylinders.

Note: This Question is unanswered, help us to find answer for this one

71. What are exhaust gases?

The gases used to cool the engine

The unused air and fuel mixture in the cylinder

Products of combustion which are discharged from the cylinder after doing work on the piston.

The air and fuel mixture that is combusted in the cylinder

Answer

Correct Answer: Products of combustion which are discharged from the cylinder after doing work on the piston.

Note: This Question is unanswered, help us to find answer for this one

72. What is the exhaust cam?

A kind of fuel

The cam that controls the operation of the exhaust valve.

A type of engine

The cam that controls the operation of the intake valve.

Answer

Correct Answer: The cam that controls the operation of the exhaust valve.

Note: This Question is unanswered, help us to find answer for this one

73. What is the act of discharging gases from an engine after they have done work called?

Gases

Engine

Discharge

Exhaust

Answer

Correct Answer: Exhaust

Note: This Question is unanswered, help us to find answer for this one

74. What does an engine do?

Pumps water

Cuts wood

Produces power to do work

Burns coal

Answer

Correct Answer: Produces power to do work

Note: This Question is unanswered, help us to find answer for this one

75. What is energy?

Emotion or feeling

A natural occurrence

Capacity for doing work

The happiness one experiences when they are doing something they love

Answer

Correct Answer: Capacity for doing work

Note: This Question is unanswered, help us to find answer for this one

76. What does EMF stand for?

Energy management factor

Environmental management factor

Electric magnetic field

Electromotive force

Answer

Correct Answer: Electromotive force

Note: This Question is unanswered, help us to find answer for this one

77. What is efficiency?

The amount of work done

The ratio of output over input.

The rate at which work is done

The quality of work done

Answer

Correct Answer: The ratio of output over input.

Note: This Question is unanswered, help us to find answer for this one

78. What is the meaning of the word "eccentric"?

Mount

A circle not having the same center as another circle within it

A device mounted off-center for converting rotary motion into reciprocating motion

Rotary

Answer

Correct Answer: A circle not having the same center as another circle within it

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79. What is a dynamometer?

A device for measuring electrical current.

A device for measuring the speed of an object.

A device for measuring the strength of an earthquake.

A device for determining the power of an engine.

Answer

Correct Answer: A device for determining the power of an engine.

Note: This Question is unanswered, help us to find answer for this one

80. What is dribbling?

Fast seeping of fuel oil from the nozzle tip after cutoff of the fuel.

Slow seeping of fuel oil from the nozzle tip after cutoff of the fuel.

No seeping of fuel oil from the nozzle tip after cutoff of the fuel.

Seeping of fuel oil from the nozzle tip before cutoff of the fuel.

Answer

Correct Answer: Slow seeping of fuel oil from the nozzle tip after cutoff of the fuel.

Note: This Question is unanswered, help us to find answer for this one

81. What is the function of a distributor?

Ignites the air-fuel mixture in the cylinders

Keeps the engine cool

Directs the flow of fuel or compressed air to the various cylinders of the engine in proper sequence.

Stores excess fuel

Answer

Correct Answer: Directs the flow of fuel or compressed air to the various cylinders of the engine in proper sequence.

Note: This Question is unanswered, help us to find answer for this one

82. What is distillation?

A process of making metal stronger

A process of making alcohol

Separation of the more volatile parts of a liquid from those less volatile by vaporization and subsequent condensation.

A type of rock found near the equator

Answer

Correct Answer: Separation of the more volatile parts of a liquid from those less volatile by vaporization and subsequent condensation.

Note: This Question is unanswered, help us to find answer for this one

83. What type of engine is a diesel engine?

A compression-ignition combustion engine

A spark-ignition combustion engine

A Stirling engine

A steam engine

Answer

Correct Answer: A compression-ignition combustion engine

Note: This Question is unanswered, help us to find answer for this one

84. What is a violent uncontrolled burning of a fuel in the combustion chamber called?

Explosion

Ignition

Combustion

Detonation

Answer

Correct Answer: Detonation

Note: This Question is unanswered, help us to find answer for this one

85. Which of the following is not a property of the delivery stroke?

The stroke of a pump during which the fluid in the pump is forced out of the cylinder.

The stroke of a pump during which the fluid in the pump enters the cylinder.

The stroke of a pump during which the fluid in the pump is forced into the cylinder

Answer

Correct Answer: The stroke of a pump during which the fluid in the pump is forced out of the cylinder.

Note: This Question is unanswered, help us to find answer for this one

86. What is the cylinder head?

The part which covers and seals the end of the cylinder and usually contains the pistons.

The part which covers and seals the end of the cylinder and usually contains the spark plugs.

The part which covers and seals the end of the engine and usually contains the valves.

The part which covers and seals the end of the cylinder and usually contains the valves.

Answer

Correct Answer: The part which covers and seals the end of the cylinder and usually contains the valves.

Note: This Question is unanswered, help us to find answer for this one

87. What is the term for the inside diameter of an engine cylinder?

Crankshaft

Cylinder head

Piston ring

Cylinder bore

Answer

Correct Answer: Cylinder bore

Note: This Question is unanswered, help us to find answer for this one

88. What is a cylinder block?

The place where a cylinder is located.

A number of cylinders cast in one piece.

A device that measures the amount of fuel in a cylinder.

The bottom part of an engine.

Answer

Correct Answer: A number of cylinders cast in one piece.

Note: This Question is unanswered, help us to find answer for this one

89. In an engine, combustion takes place in which part?

Connecting Rod

Crankshaft

Carburetor

Cylinder

Answer

Correct Answer: Cylinder

Note: This Question is unanswered, help us to find answer for this one

90. What is a cycle?

The action of exhaling and inhaling

A series of events, operations, or movements that repeat themselves in a regular sequence

A machine with two or more sets of pedals and gears, propelled by a chain, used for transportation

A closed path of a liquid in a container

Answer

Correct Answer: A series of events, operations, or movements that repeat themselves in a regular sequence

Note: This Question is unanswered, help us to find answer for this one

91. What is the crosshead supported on?

Piston rod

Connecting rod

Piston pin

Guides

Answer

Correct Answer: Guides

Note: This Question is unanswered, help us to find answer for this one

92. What is the crankshaft web?

The part of the crankshaft that transmits power to the flywheel

The part of the crankshaft that supports the connecting rods

The part of the engine that turns the crankshaft

The part of the crankshaft between the bearings

Answer

Correct Answer: The part of the crankshaft between the bearings

Note: This Question is unanswered, help us to find answer for this one

93. What is the crankshaft journal?

The part of the crankshaft which rotates in the main bearings and transmits the torque developed by the engine.

The part of the engine which is responsible for cooling

The part of the engine which is responsible for the exhaust

The part of the engine which is responsible for the distribution of power

Answer

Correct Answer: The part of the crankshaft which rotates in the main bearings and transmits the torque developed by the engine.

Note: This Question is unanswered, help us to find answer for this one

94. What is the crankshaft cheek?

A type of cheese.

The part of the crankshaft that connects the crankpin to the main crankshaft journal.

The part of the crankshaft that connects the connecting rod to the piston.

A tool used to fix a broken crankshaft.

Answer

Correct Answer: The part of the crankshaft that connects the crankpin to the main crankshaft journal.

Note: This Question is unanswered, help us to find answer for this one

95. What does a crankshaft do?

Decreases the compression ratio of the engine

Increases the compression ratio of the engine

Transmits the reciprocating motion of the pistons to the driven unit in the form of rotary motion.

Provides a place for the connecting rods to attach

Answer

Correct Answer: Transmits the reciprocating motion of the pistons to the driven unit in the form of rotary motion.

Note: This Question is unanswered, help us to find answer for this one

96. What is the crankpin?

A mechanical device that changes rotary motion into linear motion

That part of the crank to which the connecting rod is attached.

A bicycle

An rod that goes through the middle of the crankshaft

Answer

Correct Answer: That part of the crank to which the connecting rod is attached.

Note: This Question is unanswered, help us to find answer for this one

97. What is the lower portion of the engine structure called?

Crankcase subbase

Crankshaft

Piston

Bedplate

Answer

Correct Answer: Crankcase subbase

Note: This Question is unanswered, help us to find answer for this one

98. What is the crankshaft?

The electrical system that powers an engine

The middle part of the engine structure surrounding the working parts.

The system in charge of cooling an engine

The working part of an engine that creates energ

Answer

Correct Answer: The system in charge of cooling an engine

Note: This Question is unanswered, help us to find answer for this one

99. What is a crank?

That part of the crankshaft, which is in the form of a crank and crank pin.

A device used to measure angles

A device used to lift heavy objects

A tool used to start a fire

Answer

Correct Answer: That part of the crankshaft, which is in the form of a crank and crank pin.

Note: This Question is unanswered, help us to find answer for this one

100. What is the purpose of cooling water?

To reduce the amount of noise the engine makes.

To prevent excessive heating of cylinders and cylinder heads.

To improve the appearance of the engine

To provide a water source for dolphins

Answer

Correct Answer: To prevent excessive heating of cylinders and cylinder heads.

Note: This Question is unanswered, help us to find answer for this one

101. What is contraction?

Expansion

Remaining the same size

Becoming smaller in size

Becoming larger in size

Answer

Correct Answer: Becoming smaller in size

Note: This Question is unanswered, help us to find answer for this one

102. What is combustion in a cylinder so fast that there is no change in volume called?

Parallel combustion

Spontaneous combustion

Controlled combustion

Constant-volume combustion

Answer

Correct Answer: Constant-volume combustion

Note: This Question is unanswered, help us to find answer for this one

103. What is combustion of fuel in a cylinder at so slow a rate that there is no rise in cylinder pressure called?

Air injection diesel engine

Constant-speed diesel engine

Peak combustion

Constant-pressure combustion

Answer

Correct Answer: Constant-pressure combustion

Note: This Question is unanswered, help us to find answer for this one

104. What is the term for a value in an equation which does not change?

Constant

Variable

Function

Term

Answer

Correct Answer: Constant

Note: This Question is unanswered, help us to find answer for this one

105. What is a connecting rod bearing?

The bearing located in the large end of the connecting rod by which it is attached to the crankshaft.

The bearing located in the large end of the connecting rod by which it is attached to the piston.

The bearing located in the large end of the connecting rod by which it is attached to the cylinder.

The bearing located in the small end of the connecting rod by which it is attached to the crankshaft.

Answer

Correct Answer: The bearing located in the large end of the connecting rod by which it is attached to the crankshaft.

Note: This Question is unanswered, help us to find answer for this one

106. What is the connecting rod?

The engine part which helps in the ignition of the engine.

The engine part which connects the piston to the wheels.

The engine part which provides power to the engine.

The engine part which connects the piston to the crankshaft.

Answer

Correct Answer: The engine part which connects the piston to the crankshaft.

Note: This Question is unanswered, help us to find answer for this one

Mechanical Engineering MCQs | Topic-wise

MCQ on Automobile Engineering	MCQ on Compressors, Gas Dynamics and Gas Turbines
MCQ on Finite Element Method	MCQ on IC Engine (Internal combustion engine)
MCQ on IC Engines and Nuclear Power Plants	MCQ on Manufacturing Engineering (Mechanical Engineering)
MCQ on Refrigeration & Air Conditioning	MCQ on Strength of Materials
MCQ on Thermodynamics	MCQ on Workshop Technology
General Mechanical Engineering MCQs