Pre-trip inspection

Question 1

In the pre-trip inspection, what condition must all lights be in?

Accepted Answer

Clean and working

Answer

Working, even if dirty

Answer

Clean, even if one is out

Question 2

What must the windshield be like to pass the inspection?

Accepted Answer

Clear and undamaged

Answer

Tinted and undamaged

Answer

Clear, with small cracks allowed

Question 3

What three things must be true of the mirrors?

Accepted Answer

Secure, properly adjusted and clean

Answer

Convex, heated and clean

Answer

Folded in, secure and tinted

Question 4

What do rust trails on a rim indicate?

Accepted Answer

The rim may be loose on the wheel

Answer

The tire is over-inflated

Answer

The brake linings are worn thin

Question 5

Which of these is a defect on a rim?

Accepted Answer

A welding repair

Answer

A clean, unbent edge

Answer

A full set of lug nuts

Question 6

What should you find when you check each tire?

Accepted Answer

Proper inflation, evenly worn tread and no cuts or other damage

Answer

Slightly low pressure, deep tread and no visible damage

Answer

Tread worn more on the outer edge than in the center

Question 7

What do you check for around the lug bolt holes?

Accepted Answer

Cracks radiating from the holes

Answer

Paint covering the holes

Answer

Grease packed into the holes

Question 8

What do you look for on brake drums and linings?

Accepted Answer

Oil or grease on them

Answer

Rust trails on them

Answer

Paint on them

Question 9

What is the rule for brake linings where they can be seen?

Accepted Answer

They must not be dangerously thin

Answer

They must be replaced before every trip

Answer

They must be lightly oiled

Question 10

Where should the oil level, coolant level and power steering fluid be?

Accepted Answer

In the safe operating range

Answer

At the very top of the filler

Answer

Just below the minimum mark

Question 11

What is the standard for hoses in the pre-trip inspection?

Accepted Answer

They should not be worn or leaking

Answer

They should be loose enough to move freely

Answer

They should be replaced each season

Question 12

What defect do you look for on belts?

Accepted Answer

Cracks

Answer

Rust trails

Answer

Air leaks

Question 13

What must the locking jaws of a fifth-wheel be locked around?

Accepted Answer

The trailer kingpin

Answer

The release arm

Answer

The landing gear

Question 14

In what position must the fifth-wheel release arm be?

Accepted Answer

Engaged and locked in place

Answer

Released and hanging free

Answer

Halfway out, ready to pull

Question 15

How much gap is acceptable between the trailer and the skid plate?

Accepted Answer

None

Answer

About one inch

Answer

Enough to slide a hand through

Question 16

How must a sliding fifth-wheel be positioned?

Accepted Answer

So the towing vehicle clears the landing gear

Answer

As far back as it will slide

Answer

So the trailer touches the cab

Question 17

What is checked on the fifth-wheel mounting bolts?

Accepted Answer

None are loose or missing

Answer

They are freshly painted

Answer

They can be turned by hand

Question 18

What is the rule for the platform that supports the skid plate?

Accepted Answer

It cannot be cracked or broken

Answer

It must be removed before towing

Answer

It must be level with the bumper

Question 19

In what pattern must the safety chains be attached?

Accepted Answer

Crossed in an “X” pattern

Answer

Running straight and parallel

Answer

Wrapped around the coupler

Question 20

For the pre-trip inspection, what must a breakaway switch be connected to?

Accepted Answer

The first link of the safety chain

Answer

The last link of the safety chain

Answer

The handle of the landing gear

Question 21

What is checked on equalizing arms, if the hitch has them?

Accepted Answer

They are attached and the chains are tight

Answer

They are removed and stowed

Answer

They hang free with slack chains

Question 22

How should the pin, ball or coupler be?

Accepted Answer

Seated properly in the coupler and locked

Answer

Resting on the coupler, unlocked

Answer

Greased and left loose

Question 23

How should the electrical connections between tow vehicle and trailer be?

Accepted Answer

Seated and locked in place

Answer

Loosely plugged in for easy release

Answer

Disconnected until you reach the highway

Question 24

In what position must the landing gear be before driving?

Accepted Answer

Fully raised

Answer

Half raised

Answer

Touching the ground

Question 25

What extra check applies to power-operated landing gear?

Accepted Answer

Check for air or hydraulic leaks

Answer

Check the battery charge

Answer

Check the tire pressure

Question 26

What do you look for on the frame of the trailer?

Accepted Answer

Cracks or bends in the frame members and cross members

Answer

Rust trails around the lug nuts and bolt holes

Answer

A gap between the frame and the skid plate

Question 27

What is required of ties, straps or binders, if the vehicle has them?

Accepted Answer

They must be secured

Answer

They must be removed

Answer

They must be left slack

Question 28

What is checked on doors and hinges?

Accepted Answer

They are undamaged and open and close properly

Answer

They are locked from the outside

Answer

They are sealed with tape

Question 29

How many red reflective triangles must you be able to locate?

Accepted Answer

Three

Answer

Two

Answer

Four

Question 30

Besides the reflective triangles, which emergency equipment do you locate in the inspection?

Accepted Answer

A properly charged and rated fire extinguisher

Answer

A spare set of crossed safety chains

Answer

A second breakaway switch and cable

Question 31

To check hydraulic brakes, how many times do you pump the brake pedal first?

Accepted Answer

Three times

Answer

Five times

Answer

Ten times

Question 32

After pumping the pedal, how long do you hold steady pressure in the hydraulic brake check?

Accepted Answer

Five seconds

Answer

Three seconds

Answer

One minute

Question 33

During the hydraulic brake check you hold steady pressure and the pedal slowly sinks. What does this show?

Accepted Answer

A fault, because the pedal should not move

Answer

Normal behavior for hydraulic brakes

Answer

That the brakes need to warm up

Question 34

In the air governor cut-out check, what pressure should the gauge not rise above?

Accepted Answer

130 psi

Answer

85 psi

Answer

150 psi

Question 35

What is the lowest pressure at which the air governor should cut in?

Accepted Answer

85 psi

Answer

55 psi

Answer

130 psi

Question 36

How do you bring the pressure down for the governor cut-in check?

Accepted Answer

Pump the brake pedal until the gauge begins to rise

Answer

Shut off the engine for one minute

Answer

Open the air connections to the trailer

Question 37

What is the compressor’s operating range?

Accepted Answer

85 to 130 psi

Answer

55 to 75 psi

Answer

100 to 150 psi

Question 38

In the air leakage test, how much pressure may a single vehicle lose in one minute?

Accepted Answer

No more than 3 psi

Answer

No more than 4 psi

Answer

No more than 10 psi

Question 39

In the air leakage test, how much pressure may a combination vehicle lose in one minute?

Accepted Answer

No more than 4 psi

Answer

No more than 3 psi

Answer

No more than 8 psi

Question 40

Your tow vehicle and trailer lose 5 psi in the one-minute air leakage test. What does this show?

Accepted Answer

Too much leakage, because the limit for a combination is 4 psi

Answer

An acceptable result, because a combination may lose 8 psi

Answer

A governor cut-in that is set lower than it should be

Question 41

What do you do just before pressing the brake pedal in the air leakage test?

Accepted Answer

Shut off the engine and release all air-operated parking brakes

Answer

Start the engine and set the parking brakes

Answer

Pump the pedal until the low-air warning comes on

Question 42

When do you start timing the minute in the air leakage test?

Accepted Answer

When the gauge stabilizes with the brake pedal pressed

Answer

As soon as the engine has been shut off

Answer

When the low-air warning first comes on

Question 43

Between what pressures should the low-air warning device engage?

Accepted Answer