Temps Test Technical Aptitude 5

Question 1

What does a vehicle's torque converter do in an automatic transmission?

Accepted Answer

It transfers engine power to the transmission while allowing the engine to idle independently

Answer

It converts mechanical energy to electrical energy

Answer

It controls the fuel-to-air mixture ratio

Answer

It locks the drive wheels during sudden stops

Question 2

What is hydroplaning, and when does it most commonly occur?

Accepted Answer

Loss of tire traction when a layer of water builds between tires and road; occurs at higher speeds on wet roads

Answer

Engine flooding; occurs in cold weather

Answer

Brakes overheating; occurs during long downhill drives

Answer

Fuel vaporization; occurs on very hot days

Question 3

Why should you avoid resting your hand on the gear shift in a manual transmission vehicle?

Accepted Answer

It puts pressure on the transmission's selector fork, causing premature wear

Answer

It can block the driver's view of the speedometer

Answer

It prevents the parking brake from engaging

Answer

It can accidentally activate the cruise control

Question 4

What is the function of the vehicle's oxygen (O2) sensor?

Accepted Answer

It monitors exhaust oxygen levels to help the engine control unit optimize the air-fuel mixture

Answer

It measures cabin air quality for passengers

Answer

It detects coolant temperature

Answer

It triggers the airbag system

Question 5

Which vehicle system is most directly responsible for absorbing road bumps and keeping tires in contact with the road?

Accepted Answer

The suspension system

Answer

The braking system

Answer

The exhaust system

Answer

The fuel delivery system

Question 6

What does it mean when a vehicle's brake pedal feels soft or spongy?

Accepted Answer

Air has entered the brake hydraulic lines, reducing braking effectiveness

Answer

The brake pads are new and need break-in time

Answer

The parking brake is partially engaged

Answer

The tires are over-inflated

Question 7

What is the main purpose of engine coolant (antifreeze) in a vehicle?

Accepted Answer

To regulate engine temperature by absorbing and dissipating heat, while also preventing freezing

Answer

To lubricate internal engine parts

Answer

To clean fuel injectors

Answer

To maintain proper oil viscosity