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Mechanics Engineering MCQ

1. Large amounts of _____ enter the united states through the miami airport.

Wheat grain

Main deck.

Major areas

Cut flowers

Answer

Correct Answer: Cut flowers

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2. A shorter electromagnetic wave is _____. more powerful less powerful hotter colder

More powerful

Less powerful

Hotter

Colder

Answer

Correct Answer: More powerful

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3. The energy from the sun that warms your face is transferred by a process called ______.

Heat transfer

Radiation

Convection

Convection currents

Answer

Correct Answer: Radiation

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4. ________ involves the use of computers to direct manufacturing processes.

Computer-aided manufacturing

Work sampling

Just-in-time systems

Process control

Answer

Correct Answer: Computer-aided manufacturing

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5. Static friction is always __________ dynamic friction.

Equal to

Less than

Greater than

Answer

Correct Answer: Greater than

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6. The pump with a low initial cost and low maintenance cost is

Double acting piston pump

Centrifugal pump

Bucket pump

Gear pump

Answer

Correct Answer: Centrifugal pump

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7. The coefficient of restitution for elastic bodies is one.

Correct

Incorrect

Answer

Correct Answer: Incorrect

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8. The force which acts along the radius of a circle and directed away from the centre of the circle is called centrifugal force.

Agree

Disagree

Answer

Correct Answer: Agree

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9. Upsetting is the term used in one of the following operations

Turning

Forging

Casting

Drilling

Answer

Correct Answer: Forging

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10. One of the following methods is adopted for governing of steam turbines in a power plant

Hit and miss governing

Speed control

Blow off in boiler

Throttle governing

Answer

Correct Answer: Throttle governing

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11. The output of a gas turbine is 300 KW and its efficiency is 20 percent, the heat supplied is

15 KW

6000 KW

150 KW

600 KW

Answer

Correct Answer: 15 KW

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12. An aircraft gas turbine operates on

Sterling cycle

Rankine cycle

Bryton cycle

Otto cycle

Answer

Correct Answer: Bryton cycle

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13. Rapping allowance is provided on a pattern to take care of

Shrinkage

Distortion

Easy withdrawal

Machining

Answer

Correct Answer: Easy withdrawal

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14. Mandrels are used to hold

Drill bits

Hollow work pieces

Face plate

Cutting tools

Answer

Correct Answer: Hollow work pieces

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15. Which of the following operations cannot be performed on a lathe

Thread cutting

Drilling

Slotting

Facing

Answer

Correct Answer: Slotting

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16. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

60°

90°

30°

120°

Answer

Correct Answer: 120°

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17. The unit of angular acceleration is

Rad/s2

N-m

M/s

M/s2

Answer

Correct Answer: Rad/s2

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18. Quick return motion is used in a

Lathe

Grinder

Shaper

Drilling

Answer

Correct Answer: Shaper

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19. A redundant frame is also called __________ frame.

Deficient

Imperfect

Perfect

Answer

Correct Answer: Imperfect

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20. The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

None of these

Principle of independence of forces

Principle of transmissibility of forces

Principle of resolution of forces

Answer

Correct Answer: Principle of resolution of forces

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21. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

False

True

Answer

Correct Answer: False

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22. The mechanical advantage of a lifting machine is the ratio of

All of these

Load lifted to the effort applied

Output to the input

Distance moved by effort to the distance moved by load

Answer

Correct Answer: Load lifted to the effort applied

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23. Which of the following is not used as a refrigerant?

Carbon dioxide

Sulphur dioxide

Amonia

Carbon monoxide

Answer

Correct Answer: Carbon monoxide

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24. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

Greater than

Equal to

Less than

Answer

Correct Answer: Equal to

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Engineering MCQs | Topic-wise

MCQ on Basic Engineering	MCQ on Chemical Engineering
MCQ on Chemical Kinetics	MCQ on Civil Engineering
MCQ on Digital Logic	MCQ on Educational Technology
MCQ on Electrical Engineering	MCQ on Electronic Devices
MCQ on Electronics Engineering	MCQ on Mechanics Engineering
MCQ on Networks & Telecommunication	General Engineering MCQs