CLP Basic Vehicle Control 2

Question 1

When backing a commercial vehicle, you should primarily steer using which technique?

Accepted Answer

Steer opposite to trailer movement

Answer

Use only mirrors without turning your body

Answer

Get out and walk the path first, then back slowly

Answer

Steer in the same direction you want the rear to go

Question 2

What is the correct way to use the clutch when starting a large commercial vehicle on a flat road?

Accepted Answer

Slip it slightly while applying moderate throttle

Answer

Release it quickly to avoid stalling

Answer

Hold it fully engaged until the engine revs high

Answer

Press it to the floor and then release all at once

Question 3

When driving a commercial vehicle, what is the primary purpose of the trailer brake hand valve (trolley valve)?

Accepted Answer

To test trailer brakes and assist with parking

Answer

To slow the vehicle during normal highway driving

Answer

To apply emergency stopping force on all axles

Answer

To independently control each trailer wheel

Question 4

Which gear should a driver use when going down a long, steep grade?

Accepted Answer

A low gear that keeps engine speed in a safe range

Answer

A gear higher than used to climb the same grade

Answer

The highest gear available to maintain speed

Answer

Neutral to allow engine braking to take effect

Question 5

What does it mean when the low air pressure warning device activates in a commercial vehicle?

Accepted Answer

Air pressure has dropped below a safe level (typically 60 psi)

Answer

The air compressor is working too hard

Answer

A tire has lost pressure and needs inflation

Answer

The parking brakes have been fully released

Question 6

When making a right turn in a large commercial vehicle, why should you position the truck slightly left before turning?

Accepted Answer

To allow the rear wheels enough room to complete the turn without hitting the curb

Answer

To give other drivers a warning that you are turning

Answer

To check for traffic in the left lane before the turn

Answer

To meet the minimum turning radius required by federal law

Question 7

What is 'off-tracking' in commercial vehicle operation?

Accepted Answer

When the rear wheels follow a different, shorter path than the front wheels on a curve

Answer

When a trailer slides sideways on ice

Answer

When GPS navigation sends a driver off the planned route

Answer

When the front axle loses traction during a turn