Mechanical Engineering Quiz # 46

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

2.5 cm

3.0 cm

4.0 cm

5.0 cm

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.

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.

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

Constant

Variable

Function

Term

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

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

What is contraction?

Expansion

Remaining the same size

Becoming smaller in size

Becoming larger in size

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

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

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

What is the lower portion of the engine structure called?

Crankcase subbase

Crankshaft

Piston

Bedplate

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

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

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.

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

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

What is the crosshead supported on?

Piston rod

Connecting rod

Piston pin

Guides

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

In an engine, combustion takes place in which part?

Connecting Rod

Crankshaft

Carburetor

Cylinder

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.

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

Crankshaft

Cylinder head

Piston ring

Cylinder bore

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.

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

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

Explosion

Ignition

Combustion

Detonation

What type of engine is a diesel engine?

A compression-ignition combustion engine

A spark-ignition combustion engine

A Stirling engine

A steam engine

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

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

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.

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.

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