ASVAB AUTOMOTIVE INFORMATION PRACTICE

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ASVAB AUTOMOTIVE INFORMATION PRACTICE

FLASHCARDS EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -49 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: When accurate measurements of small distances are needed, it is best to us a?

• Caliper
• Micrometer
• Spirit level
• Tape measure

Answer:

Micrometer Explanation: Micrometers are clamp-like tools designed to measure accuracy to the thousandth of an inch. They are best for precise measurements of small distances.

Question 2: What is the purpose of fuel rail?

• Controls engine speed
• Supplies fuel to the fuel injectors
• Distributes air to the intake ports
• Filters contaminants from the fuel

Answer:

Supplies fuel to the fuel injectors Explanation: The fuel rail is essentially a pipe that delivers fuel to each fuel injector in an engine.Question 3: Moderated by the voltage regulator, system voltage during regular car operation is around?

• 10 volts
• 15 volts
• 20 volts
• 25 volts

Answer:

15 volts Explanation: Normally, the system voltage is around 14.5 volts. Car accessories increase the demand on the system (dropping the voltage) but this is compensated by the voltage regulator, which increases the alternator's output until the system voltage is back to approximately 15.

Question 4: What is the ideal air-to-fuel ratio in a typical engine?

A. 02:06.4

B. 14.7:1

C. 2.2:1

D. 15:01.6

Answer:

14.7:1

Explanation: The most successful and efficient stoichiometric air-fuel ratio for a gasoline engine is 14.7 pounds of air combined with 1 pound of fuel.

Question 5: Engine oil viscosity can best be described as?

• Kinetic energy
• Heat resistance
• Resistance to flow

• Adherence to flow

Answer:

Resistance to flow Explanation: C Engine oil viscosity can be thought of as it's "thickness," or resistance to flow. The viscosity must be high enough to maintain a lubrication film but low enough that it can circulate under all conditions. A number indicates the viscosity of the oil.

Question 6: A c-clamp is tightened with the?

• Turning of a screw
• Force of a lever
• Use of a pulley
• Rotation of a wheel

Answer:

Turning of a screw Explanation: A c-clamp is powered by a simple machine: the screw. When the screw is turned, it tightens or releases the pressure of the clamp, either holding together pieces of a project or releasing them.

Question 7: The typical type of batter found in most vehicles is a?

• Lead-acid battery
• Lead-alkaline battery
• Lithium-ion battery
• Nickel-cadmium battery

Answer:

Lead-acid battery Explanation: Lead-acid batteries are composed of lead plates in an electrolyte bath of sulfuric acid and water. While lead-based battery technology is dated, its power profile, dependability, and low cost to make it is ideal for automotive use.

Question 8: Automatic transmissions transmit engine torque to the transmission via a?

• Torque case
• Torque axle
• Torque shaft
• Torque converter

Answer:

Torque converter Explanation: The torque converter is a type of fluid coupling that connects the engine to the transmission.

Question 9: A stick welder melts metal with the heat from?

• Applied pressure
• A fuel-burning torch
• An electric current
• Electromagnetic forces

Answer:

An electric current Explanation: A stick welder is used in electric-arc welding. This is a process that uses an electric current to form an arc between the machine's electrode and the metals to be joined; the heat from the current melts both the electrode and the base metals.Question 10: The best method for cleaning a surface prior to soldering is to use a?

• Flux
• Stinger
• Filter rod
• Core solder

Answer:

Flux Explanation: Fluxes are chemical agents used to clean a surface before soldering.