CDL - Class A Drivers License

Correct!
D. Gross Vehicle Weight Rating.

Explanation:
You must understand basic cargo safety rules to get a CDL. If you load cargo wrong or do not secure it, it can be a danger to others and yourself. You are responsible for not being overloaded. Gross Vehicle Weight Rating is the maximum Gross Vehicle Weight specified by the manufacturer for a single vehicle plus its load.

In the handbook:
3.2.1: Weight and Balance - Definitions You Should Know

Correct!
A. that door latches or locks work properly.

Explanation:
Conduct a walk-around inspection of your vehicle during step five of the Seven-step Inspection Method. When you check the left front side of the vehicle, make sure the driver's door glass is clean. Make sure that door latches or locks work properly. On the left front wheel, check the wheel and rim for missing, bent, or broken studs, clamps, lugs, or any signs of misalignment. Check the tires to ensure that they are properly inflated, that the valve stem and cap are OK, and that there are no serious cuts, bulges, or tread wear. Use a wrench to test rust-streaked lug nuts for looseness. Make sure that the hub oil level is OK and that there are no leaks. Check the left front suspension next. Look at the condition of the spring, spring hangers, shackles, u-bolts, and shock absorber. On the left front brake, check the condition of the brake drum or disc and hoses.

In the handbook:
2.1.5: Vehicle Inspection - Seven-step Inspection Method

Correct!
B. 4.5

Explanation:
There are three things that add up to total stopping distance: perception distance, reaction distance, and braking distance. Braking distance is the distance it takes to stop once the brakes are put on. At 55 mph on dry pavement with good brakes it can take a heavy vehicle about 390 feet to stop, which takes about 4 1/2 seconds.

In the handbook:
2.6.1: Controlling Speed - Stopping Distance

Correct!
A. steer right.

Explanation:
Stopping is not always the safest thing to do in an emergency. When you don't have enough room to stop, you may have to steer away from what's ahead. Remember, you can almost always turn to miss an obstacle more quickly than you can stop. If an oncoming driver has drifted into your lane, a move to your right is best. If that driver realizes what has happened, the natural response will be to return to his or her own lane. If something is blocking your path, the best direction to steer will depend on the situation. If you have been using your mirrors, you'll know which lane is empty and can be safely used. If the shoulder is clear, going right may be best. No one is likely to be driving on the shoulder but someone may be passing you on the left. You will know if you have been using your mirrors. If you are blocked on both sides, a move to the right may be best. At least you won't force anyone into an opposing traffic lane and a possible head-on collision.

In the handbook:
2.17.1: Driving Emergencies - Steering to Avoid a Crash

Correct!
B. orange

Explanation:
Hazardous materials are products that pose a risk to health, safety, and property during transportation. Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear, and both sides. Placards must be readable from all four directions. They are at least 10 3/4 inches square, turned upright on a point, in a diamond shape. Cargo tanks and other bulk packaging display the identification number of their contents on placards or orange panels.

In the handbook:
2.24.3: Hazardous Materials Rules For All Commercial Drivers - Lists of Regulated Products

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