How can the driver anticipate a change in traffic signals as he approaches an
intersection? - answerLook well ahead for stale green lights, to avoid running through
late.
If your vehicle is 38 feet in length, what "timed-interval" count would you use under ideal
road and traffic conditions? - answer4 seconds. Round to nearest 10 feet and divide by
10.
What conditions should the driver consider when deciding upon a safe driving speed? -
answer1. Road condition (rain)
2. Tire condition (tread, inflation)
3. Brake condition (adjustment)
4. Light condition (glare, shadows)
5. Visibility condition (dusk, rain, smoke, dust)
6. Traffic density (vehicles, pedestrians, cyclists)
7. Load condition (weight, length, width, type)
8. Driver condition (fatigue, tension)
In what way does the slow driver create a traffic hazard? - answerSlow drivers create
hazards from vehicles following too close or trying to pass them, which increases their
risk of an accident from the rear and the side.
In what way does the fast driver create a traffic hazard? - answerFast drivers increase
their chance for collision by reducing stopping distance and increasing driving fatigue
What is the minimum following distance the driver of a commercial vehicle maintains
when following another commercial vehicle outside of a business or residential district?
- answer200 feet, 2 second rule, take car length to the nearest ten feet and divide by 10,
1 car length per 10 mph
What is the most effective way to deal with a "tail-gater"? - answerMake sure to observe
them carefully and help them to safely pass you.
What is the surest method of reducing stopping distance? - answerDrive slower.
What is meant by "The Danger Zone" of a vehicle? - answerThe area in front of the
vehicle in which it cannot stop
, What defensive measures can the driver take as he approaches any intersection? -
answer1. Never enter an intersection at a speed at which you cannot stop safely.
2. Do not assume you have the right of way.
3. Look well ahead for stale green lights.
4. Position your vehicle into the proper lane well before the turn at the intersection.
5. Do not depend on other drivers.
6. Never pass at the approach to or in an intersection.
If the weight of the vehicle is doubled, how many times must the stopping power be
increased? - answer2x
If the speed of the vehicle is doubled, by how many times must the braking force be
increased to stop the vehicle? - answer4x
If the weight and the speed of the vehicle is doubled, by how many times must the
braking force be increased to stop the vehicle? - answer8x
How many braking systems are required on every truck, truck-tractor or bus? -
answerTwo: the service brake and the parking brake.
What is the best method of applying the brakes:
On a wet road surface?
To check the speed down a slight grade?
To check the speed down a steep grade? - answer1. Lightly snub the breaks to prevent
the wheels from locking.
2. By snubbing the breaks.
3. Select the lower gear ratios and with a steady break application
What determines the "safe speed" to proceed down any hill? - answerThe speed which
will allow safe stop at any time.
What is the purpose of an engine governor? - answerTo keep an engine's RPM within
safe limits.
Are engine retarders more effective at low engine R.P.M. or high R.P.M? -
answerHigher RPM
What should the driver do when it becomes necessary to drive his vehicle through the
water which is upon the highway? - answerPlace a slight drag on the breaks
Why should you avoid overtaking another vehicle when your difference in speed is only
slight? - answerThe time to overtake is considerable and creates hazards
Why should you not signal another vehicle to overtake and pass you? - answerYou may
be encouraging a driver with limited experience to over-drive his/her ability.
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