| General Knowledge Practice Test 4 |
| Taking the CDL written exam can be stressful, feel free to practice on our free practice exam. This practice exam has been put together by a former CDL instructor and hits all the right points. You can even choose to e-mail yourself the results if you so desire. Good luck.
|
| Passive Crossings; This type of crossing does not have any type of traffic control device. The decision to stop or proceed rests entirely in your hands.
True
False
|
| Active Crossings; This type of crossing has a traffic control device installed at the crossing to regulate traffic at the crossing.
True
False
|
| It takes a typical tractor-trailer unit at least __ seconds to clear a single track and more than __ seconds to clear a double track.
11, 12
12, 13
13, 14
14, 15
|
| When is it acceptable to shift while crossing a railroad tracks?
When it’s clear
When you can see 1/2 mile in either direction
In some states
Never
|
| In coming down long, steep downgrades, gravity causes the speed of your vehicle to increase.
True
False
|
| In mountain driving, If the brakes become too hot, they may start to fade.
True
False
|
| In mountain driving, Your most important consideration is to select a speed that is not too fast for the:
Total weight of the vehicle and cargo
Length of the grade
Steepness of the grade
Road conditions
Weather
All of the above
None of the above
|
| You must use the braking effect of the engine as the principal way of controlling your speed
True
False
|
| Drivers of modern trucks may have to use lower gears going down a hill than would be required to go up the hill.
True
False
|
| Brakes can fade or fail from excessive heat caused by using them too much and not relying on the engine braking effect.
True
False
|
| Brakes out of adjustment will stop doing their share before those that are in adjustment.
True
False
|
| Proper Braking Technique; if your safe speed is 40 mph, you would not apply the brakes until your speed reaches __ mph.
50
40
30
20
|
Proper Braking Technique; You now apply the brakes hard enough to
gradually reduce your speed to __ mph and then release the brakes. Repeat this as often as necessary until you have reached the end of the downgrade.
45
35
25
15
|
| Stopping is not always the safest thing to do in an emergency.
True
False
|
| Do not apply the brakes while you are turning. It’s very easy to lock your wheels while turning.
True
False
|
| Most shoulders are strong enough to support the weight of a large vehicle and, therefore, offer an available escape route.
True
False
|
Steering to Avoid a Crash; If possible, avoid using the brakes
until your speed has dropped to about __ mph. Then, brake very gently to avoid skidding on a loose surface.
10
20
30
40
|
When using the stab braking technique, If you re-apply the brakes before the wheels start rolling, the vehicle won’t straighten out.
True
False
|
If the wheels are skidding, you
cannot control the vehicle.
True
False
|
| The major signs of tire failure are:
Sound
Vibration
Feel
All of the above
|
ABS is an addition to your normal brakes. It does not decrease or increase your normal braking capability. ABS only activates when wheels are about to lock
up.
True
False
|
| ABS does not necessarily shorten your stopping distance, but it does help you keep the vehicle under control during hard braking.
True
False
|
| When you drive a vehicle with ABS, you should brake as you always have.
True
False
|
| Without ABS you still have normal brake functions. Drive and brake as you always have.
True
False
|
| By far the most common skid is one in which the rear wheels lose traction through excessive braking or acceleration.
True
False
|
Because locked wheels have less
traction than rolling wheels, the rear wheels usually slide sideways in an attempt to catch up with the front wheels.
True
False
|
| Driving too fast for conditions causes most frontwheel skids.
True
False
|
| In a front-wheel skid, the front end tends to go in a straight line regardless of how much you turn the steering wheel.
True
False
|
| If your vehicle is involved in the accident, try to get it to the side of the road. This will help prevent another accident and allow traffic to move.
True
False
|
| If a tire blows out, you should put the brakes on hard to stop quickly.
True
False
|
| Most serious skids result from driving too fast for road conditions.
True
False
|
|
|
Subscribe to CDL 101 weekly RSS feed
