ASVAB Auto Shop Information Practice Test 5

Question – 1

1. When fuel is mixed with air by the fuel system, the particles of the fuel are___________.

  • A. randomized

  • B. atomized

  • C. minimized

  • D. compressed

  • Answer:B

  • Answer Explanation:


Question – 2

2. A typical rich air-fuel mixture is __________.

  • A. 1: 10

  • B. 7: 10

  • C. 10: 1

  • D. 10: 7

  • Answer:C

  • Answer Explanation:


Question – 3

3. ___________ takes place when an engine’s air-fuel mixture is lean.

  • A. Detonation

  • B. Depression

  • C. Impression

  • D. Preignition

  • Answer:A

  • Answer Explanation:


Question – 4

4. A __________ is utilized by the diesel engine.

  • A. spark ignition system

  • B. low compression ratio

  • C. high compression ratio

  • D. carburetor

  • Answer:C

  • Answer Explanation:


Question – 5

5. What is the role of antifreeze in an engine coolant?

  • A. It lowers the boiling point of the coolant

  • B. It raises the boiling point of the coolant

  • C. It raises the freezing point of the coolant

  • D. It lowers the corrosion resistance of the coolant

  • Answer:B

  • Answer Explanation:


Question – 6

6. Which of the following controls the electronic fuel injectors?

  • A. Fuel pressure regulator

  • B. Electric fuel pump

  • C. Ignition switch

  • D. Powertrain control module

  • Answer:D

  • Answer Explanation:


Question – 7

7. What are the two basic types of wrenches?

  • A. The open end and the box end

  • B. The open end and the close end

  • C. The start end and close end

  • D. None of the above

  • Answer:A

  • Answer Explanation:


Question – 8

8. A veining bit is used in a _________ to cut fine lines in materials, often for decorative purposes.

  • A. hand drill

  • B. electric saw

  • C. drill press

  • D. router

  • Answer:D

  • Answer Explanation:


Question – 9

9. _________ to stop a board from chipping on the end as you plane.

  • A. At the end of the board insert a nail to hold it together

  • B. A piece of wood can be nailed to the end of the board as an extension of the board

  • C. After planing, cut off the end

  • D. After finishing, glue the chipped pieces back

  • Answer:B

  • Answer Explanation:


Question – 10

10. _________ is a process that joins metals by bonding a metal alloy to their surfaces.

  • A. Planing

  • B. Smoothing

  • C. Soldering

  • D. Shaping

  • Answer:C

  • Answer Explanation:


Question – 11

11. __________ are used when it is necessary to disassemble a component by hand.

  • A. Electric saws

  • B. Cotter pins

  • C. Lock nuts

  • D. Wing nuts

  • Answer:D

  • Answer Explanation:


Question – 12

12. UNF stands for which one of the thread classifications?

  • A. Unified National Fine

  • B. Unified National Fund

  • C. United National Fund

  • D. United Name Fine

  • Answer:A

  • Answer Explanation:


Question – 13

13. ___________ is used to loosen a bolt with a hexagonal head.

  • A. A box-end wrench

  • B. A12-point socket and ratchet

  • C. An open-end wrench

  • D. All of the above

  • Answer:D

  • Answer Explanation:


Question – 14

14. The threaded fasteners that are 1/4 inch or more in diameter are known as ________.

  • A. Nuts

  • B. Machine screws

  • C. Bolts

  • D. Rivets

  • Answer:C

  • Answer Explanation:


Question – 15

15. ___________ are electronically connected to EFI computer.

  • A. Carburetors

  • B. Injectors

  • C. Throttles

  • D. Radiators

  • Answer:C

  • Answer Explanation:


Score: 0/10

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