ASVAB Mechanical Comprehension Practice Test 2

Question – 1

1. When ________ is added to aluminium, it’s casting ability increases.

  • A. silicon

  • B. bronze

  • C. bismuth

  • D. lead

  • Answer:A

  • Answer Explanation:


Question – 2

2. Valves are used in piping systems to ____________.

  • A. control the liquid flow

  • B. evaporate the liquid

  • C. increase the density of the liquid

  • D. decrease the temperature of the liquid

  • Answer:A

  • Answer Explanation:


Question – 3

3. _________ process is implemented at Rourkela Steel Plant for making steel.

  • A. L-D

  • B. Bessemer

  • C. Open-hearth

  • D. Metallic

  • Answer:A

  • Answer Explanation:


Question – 4

4. In high speed steels _______ is used as an alloying element to replace tungsten.

  • A. cadmium

  • B. nickel

  • C. molybdenum

  • D. vanadium

  • Answer:C

  • Answer Explanation:


Question – 5

5. __________ defect takes place when atoms are packed in an imperfect manner during crystallization.

  • A. Line

  • B. Point

  • C. Circular

  • D. Surface

  • Answer:B

  • Answer Explanation:


Question – 6

6. When electrons are transferred from one atom to another, __________ bond is formed.

  • A. an ionic

  • B. a hypervalent

  • C. a covalent

  • D. a metallic

  • Answer:A

  • Answer Explanation:


Question – 7

7. ___________ are used to reduce friction between axle and wheel.

  • A. Levers

  • B. Pulleys

  • C. Castings

  • D. Bearings

  • Answer:D

  • Answer Explanation:


Question – 8

8. Which among the following terms describe a decrease in speed?

  • A. Acceleration

  • B. Deceleration

  • C. Velocity

  • D. Rotation

  • Answer:B

  • Answer Explanation:


Question – 9

9. ________ would be best for using as a boat anchor.

  • A. Plastic

  • B. Wood

  • C. Metal

  • D. Foam

  • Answer:C

  • Answer Explanation:


Question – 10

10. Which among the following is similar to a crane?

  • A. Elevator

  • B. Jet

  • C. Spring

  • D. Lever

  • Answer:A

  • Answer Explanation:


Question – 11

11. A steel bar _______ when heated.

  • A. contracts

  • B. expands

  • C. remains unchanged

  • D. melts

  • Answer:B

  • Answer Explanation:


Question – 12

12. When water is added to a tank, the water pressure at the bottom of the tank ________.

  • A. increases

  • B. decreases

  • C. changes depending on the temperature of the water

  • D. remains constant

  • Answer:A

  • Answer Explanation:


Question – 13

13. _________ screws should be used for transmission of power.

  • A. Thick

  • B. Low efficiency

  • C. High efficiency

  • D. Light weight

  • Answer:C

  • Answer Explanation:


Question – 14

14. A clock pendulum swaying back and forth can be described by which among the following actions.

  • A. Free falling body

  • B. Gravitational force

  • C. Periodic motion

  • D. Acceleration

  • Answer:C

  • Answer Explanation:


Question – 15

15. A concrete block can be dragged easily across the pavement by _________.

  • A. lubricating the pavement

  • B. pulling the block harder

  • C. using rods

  • D. using a rope

  • Answer:A

  • Answer Explanation:


Score: 0/10

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