Ohio CDL All Answers Correct
Vehicle Inspection and Safety
1. What is the most important reason for doing a vehicle inspection? ️ Safety.
2. What things should you check during a trip? ️ Watch gauges for signs of trouble. Use your senses
to check for problems (look, listen, smell, and f...
4. Name some suspension system defects? ✔️ Spring hangers that allow movement of axle from proper
position, cracked or broken spring hangers, missing or broken leaves in any leaf spring, leaking shock
absorbers, air suspension systems that are damaged and/or leaking, any parts of the suspension or
frame that is cracked or broken.
Emergency Equipment and Tread Depth
,5. What three kinds of emergency equipment must you have? ✔️ Fire extinguisher, spare electrical
fuses, warning devices for parking vehicles (three reflective triangles or at least 6 fuses or 3 liquid
burning flares).
6. What is the minimum tread depth for front tires? ✔️ 4/32 inch.
7. What is the minimum tread depth for other tires? ✔️ 2/32 inch.
Pre-Trip Inspection
8. Name some things you should check on the front of your vehicle during the walk-around inspection?
✔️ Low beams, four-way flashers, high beams.
9. What should wheel bearing seals be checked for? ✔️ Leaks.
10. How many red reflective triangles should you carry? ✔️ 3.
11. How do you test hydraulic brakes for leaks? ✔️ Pump the brake pedal three times, then apply firm
pressure to the pedal and hold for five seconds. The pedal should not move.
12. Why put the starter switch key in your pocket during the vehicle inspection? ✔️ Prevent someone
from moving the truck while you are in it.
Cargo Securement and Backing
, 13. How often should cargo securement be checked? ✔️ First 50 miles and every 150 miles or every 3
hours (whichever comes first).
14. Why should you back toward the driver's side? ✔️ Better view.
15. If stopped on a hill, how can you start moving without rolling back? ✔️ By partially engaging the
clutch before releasing the brake.
16. When backing, why is it important to use a helper? ✔️ Blind spots.
17. What's the most important hand signal that you and the helper should agree on? ✔️ Stop.
Gear Shifting and Vehicle Control
18. What are the two special conditions where you should downshift? ✔️ Before starting down a hill
and before entering a curve.
19. When should you downshift automatic transmissions? ✔️ When going downhill.
20. Retarders keep you from skidding when the road is slippery. True or False? ✔️ False.
21. What are the two ways to know when to shift? ✔️ Use engine speed (rpm) or road speed (mph).
22. How far ahead does the manual say you should look? ✔️ 12-15 seconds ahead.
Observational Skills and Communication
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