CLP Basic Vehicle Control 3

Question 1

What should you do if your commercial vehicle's brakes begin to fade on a long downhill grade?

Accepted Answer

Downshift immediately and look for an escape ramp

Answer

Apply the brakes harder to compensate for the fade

Answer

Use the trailer brake hand valve only

Answer

Turn on hazard lights and maintain current speed

Question 2

Which of the following best describes 'stab braking' for commercial vehicles without ABS?

Accepted Answer

Applying full brake pressure and releasing when wheels lock, then reapplying

Answer

Gently pumping the brakes in short rapid intervals

Answer

Applying one-third braking force to avoid lockup

Answer

Pressing the brake pedal to the floor and holding it

Question 3

When should you downshift a manual transmission commercial vehicle?

Accepted Answer

Before entering a curve or grade, not while in it

Answer

Only after reaching the bottom of a hill

Answer

Whenever the engine reaches maximum RPM

Answer

While braking to make the stop shorter

Question 4

What is the correct procedure for turning around in a commercial vehicle when space is limited?

Accepted Answer

Drive around the block to avoid reversing

Answer

Make a three-point turn using forward and reverse movements

Answer

Use a U-turn in a single movement if the road is wide enough

Answer

Use only the trailer brake to pivot the vehicle

Question 5

How does cargo weight affect the braking distance of a commercial vehicle?

Accepted Answer

Heavier loads increase braking distance because more inertia must be overcome

Answer

Heavier loads always shorten braking distance due to added traction

Answer

Braking distance is unaffected by cargo weight if brakes are properly adjusted

Answer

Lighter loads increase braking distance because tires have less grip

Question 6

What is the purpose of a runaway truck ramp (escape ramp)?

Accepted Answer

To provide an emergency stopping area for vehicles with brake failure on steep grades

Answer

To allow trucks to bypass weigh stations legally

Answer

To separate truck traffic from passenger vehicles on mountain passes

Answer

To allow trucks to park temporarily without blocking traffic

Question 7

In a commercial vehicle with air brakes, what happens when you push the brake pedal down?

Accepted Answer

Air pressure is directed to the brake chambers to apply the brakes

Answer

Hydraulic fluid is compressed and sent to the brake chambers

Answer

Air is released from the system to reduce pressure on the brakes

Answer

The parking brake engages automatically to assist stopping