CDL

Question 1

What is the most important reason for.doimg a vehicle inspection?

Answer 1

Safety

Question 2

What things should you check during a trip?

Answer 2

Pre-trip inspection.
During trip inspection.
After trip inspection.

Question 3

Pre-trip inspection

Answer 3

7 step inspection method

• approach the vehicle: notice general condition. Look for damage or vehicle leaning to one side. Look under the vehicle for fresh oil, coolant, grease, or fuel leaked. Check for hazards near vehicle
  1. Vehicle overview: review last vehicle inspection report.
  2. Check engine compartment ( check that parking breaks are on and wheels are chocked).: engine oil level, coolant level in radiator;condition of hose, power steering fluid level and hose,windshield washer fluid level, battery fluid level connections and tie down, automatic transition fluid level, belts for.tightness and excessive wear, leaks in the engine compartment, bad wiring, then secure hood in closed position.
  3. Start engine and inspect inside the cab: make sure parking break is on, put gear shit in park, start engine and listen, check ABS indicator lights, look at gauges, oil pressure, air pressure, coolant temp, engine oil.temp, warning lights and buzzers, steering wheel, clutch, gas pedal, break controls,transmission controls, horns, windshield wiper, lights and signals, mirrors, and emergency equipment, seat belts.
  4. Turn off engine and check lights: turn off lights, ensure parking break is on, remove key and take it with you, check all lights around vehicle.
  5. Do walk around inspection: clean all lights, reflectors, and glass as you go. 360 degrees around.
  6. Check signal lights: have a helper look at all lights as you change through them.
  7. Start the engine and check: test for hydraulic leaks ( pump break pedal 3 times then apply firm pressure and hold for 5 secs), check safety belts, check breaking system.

Question 4

During a trip

Answer 4

Watch gauges for signs of trouble.
Inspect the securements of the cargo first 50 miles then every 150 mile or 3 hours.
Check critical items when stopped:
-tires, wheels and rims
-brakes
-lights and reflectors
-brake and electrical connections to trailer
-trailer coupling devices
-cargo securement devices

Question 5

After-trip inspection and Report.

Answer 5

Filling out vehicle condition report listing pronlems.

Question 6

Name some key steering system parts.

Answer 6

• steering wheel
  -tire rod
  -steering shaft
  -hydraulic fluid resorvoir
  -gear box
  -drag link
  -power steering cylinder
  -steering arm
  Pittman arm
  -steering knuckle
  -spindle

Question 7

Name some suspension system defects.

Answer 7

The suspension system holds up the vehicle and its load. It keeps the axles in place.
Look for: -spring hangers that allow movement of the axle from proper position.
-cracked or broken spring hangers.
-missing or broken leaves in any leaf spring.
#if 1/4 or more are missing the vehicle is out of service#
-leaking shock absorbers
-torque rod or arm, u-bolts,spring hangers, or other axle positioning parts that are cracked, damaged or missing.
- air suspension systems that are damaged and or leaking.
- any loose, cracked, broken or missing frame members.

Question 8

What 3 kinds of emergency equipment must you have?

Answer 8

• fire extinguisher
• spare electrical fuses (unless equiped with circuit breakers)
• warning devices for parked vehicles (3 reflective warning triangles or 6 fusees or 3 liquid burning flares)

Question 9

What is the minimum tread depth for front tires? And others?

Answer 9

4/32 for the front.

2/32 others

Question 10

Name some things you should check on the front or your vehicle during the walk around inspection.

Answer 10

Condition of axle. Condition of steering system.

Must grab steering mechanism to test if loosened. Condition of windshield. Lights and reflectors.

Question 11

What should wheel bearing seals be checked for?

Answer 11

Seals not leaking

Question 12

How many red reflective triangles should you carry?

Answer 12

3

Question 13

How do you test hydraulic breakers for leakes?

Answer 13

A

Question 14

Why put the starter switch key in your pocket during the pre-trip inspection?

Answer 14

a

Question 15

How is the parking breake released?

Answer 15

By pushing in the break control knob

Question 16

An alcohol evaporator in an air break system:

Answer 16

Prevents ice from forming in the breaking system.

Question 17

When taking the basic control skills test, drivers are:

Answer 17

Allowed to leave the vehicle, but only if the vehicle is placed in natural and the parking break is set.

Question 18

After 2 violations of any state law regarding hand-held mobile phone:

Answer 18

Your CDL will be disqualified

Question 19

If another driver is tailgating you, you should?

Answer 19

Increase the space in front of your vehicle

Question 20

Pressing and releasing your break pedal unnecessarily can:

Answer 20

Release air faster than it can be replaced.

Question 21

What can happen if the air pressure gets too low in an air brake system?

Answer 21

The brakes may not work.

Question 22

When the break pedal is pushed down, air breaks work:

Answer 22

After a short delay.

Question 23

When driving, you should:

Answer 23

take a break every 2 hours to avoid becoming too tired.

Question 24

Failing to drain the tanks in an air brake system can result in:

Answer 24

Water freezing and causing brake failure.

Question 25

Multi-speed axles and auxiliary transmissions are used:

Answer 25

To provide extra gears

Question 26

When inspecting make sure the brake pads are:

Answer 26

Free of oil or grease.

Question 27

Convex mirrors

Answer 27

Can be helpful to see a wider area.

Question 28

When carrying a wide load you should?

Answer 28

Obtain special permits and follow special rules.

Question 29

What kind of force must emergency brakes us?

Answer 29

Mechanical.