Question 1

Commercial drivers often have to operate in difficult conditions. One such condition is fog. Which of the following is NOT true concerning fog?&#10;A)Fog can appear quickly.&#10;B)Fog can reduce visibility significantly.&#10;C)Fog only lasts for a short period of time or short distance.&#10;D)Fog can occur at any time.

Accepted Answer

It is NOT true that fog only lasts a short period of time or for a short distance. Fog banks can be miles long and can last for hours. Drivers must be aware of the dangers they face while driving in fog and be ready to react to those dangers. When possible, it is best to pull over and stop during periods of heavy fog.

Question 2

When driving in fog, commercial drivers should do which of the following?&#10;A)Slow down when entering foggy areas.&#10;B)Use low beam headlights and fog lights.&#10;C)Use 4-way flashers in heavy fog to alert drivers behind you.&#10;D)Avoid passing other vehicles.&#10;E)All of the above

Accepted Answer

When driving in fog, drivers should take several precautions. These include slowing down when entering the fog bank, and using low beam headlights and fog lights for better visibility. Drivers can use their 4-way flashers to help alert drivers behind them of their presence. It is not advisable to pass other vehicles while driving in foggy areas. Drivers should use the roadside reflectors to help keep on the road during heavy bouts of fog.

Question 3

Driving in winter conditions can present special problems. Drivers who are operating in winter conditions should do which of the following:&#10;A)Try to get to their destination as fast as possible.&#10;B)Increase speed on overpasses to cross them faster.&#10;C)Increase speed on bridges to cross them faster.&#10;D)None of the above

Accepted Answer

When driving in winter conditions, drivers should plan for slower speeds before leaving on their trip. Attempting to "out run" the conditions often leads to accidents. Drivers should be very careful when crossing overpasses and bridges as these structures are known to ice over faster than road surfaces. For this reason, speeds must be reduced when crossing them.

Question 4

During a pre-trip inspection in wintertime, drives should make sure they check:&#10;A)Proper coolant levels and antifreeze levels&#10;B)Heating and defrosting devices&#10;C)Wipers and washers&#10;D)All of the above

Accepted Answer

When performing a pre-trip inspection during the wintertime, drivers should always make sure that they have the proper levels of coolant and antifreeze. They must also ensure that their heating and defrosting devices are working properly. It is critical that wipers and washers be functioning properly as well, as windshields are often splashed with dirt and mud during winter driving.

Question 5

When inspecting the front tires for winter driving, tread depth on steering tires should be at least:&#10;A)1/32 inch&#10;B)2/32 inch&#10;C)3/32 inch&#10;D)4/32 inch

Accepted Answer

When inspecting the front tires of a commercial vehicle, drivers should find at least 4/32 inch of tread in all of the major grooves. This depth is required in order for the front tires to maintain traction. Loss of traction can result in the driver not being able to steer the vehicle. Tires that do not have enough tread should be replaced before leaving on the trip. All other tires on the vehicle should have at least 2/32 inch of tread.

Question 6

When using tire chains for added traction, drivers should ensure that chains are properly installed on:&#10;A)Front tires only&#10;B)Driver tires only&#10;C)All tires&#10;D)Only on the back set of tires of trailers

Accepted Answer

When installing tire chains, only the drive tires need to be chained. Adding chains to the other tires will not benefit the driver and may cause damage to those tires. It is important that drivers know how to properly and safely install tire chains before leaving on their trip. Drivers should ensure that they have enough chains for their type of vehicle and that they have extra cross-links available.

Question 7

During winter driving, some trucks use radiator shutters or winterfront devices. Which of the following statements is NOT true concerning these devices?&#10;A)Drivers should periodically remove ice from radiator shutters.&#10;B)Drivers should ensure that the winterfront device is closed tightly at all times.&#10;C)The winterfront device should not be closed too tightly at any time.&#10;D)Radiator shutters can freeze shut.

Accepted Answer

Some vehicles use protective devices during winter driving to help protect the engine from extreme cold. Radiator shutters and winterfronts are two of these devices. Winterfront devices must not be closed too tightly as this may lead to the engine overheating. If radiator shutters freeze shut, the engines may overheat as well.

Question 8

Which of the following are indicators that ice may have formed on wet roadways?&#10;A)Ice on mirrors or wipers&#10;B)Lack of spray from other vehicles&#10;C)Silvery shine to road&#10;D)All of the above

Accepted Answer

Commercial drivers will often drive through areas that are icing up or have already iced up. Signs of icing include ice on mirrors and wipers, lack of spray from other vehicles, a silvery shine to the roadway and, of course, slippery conditions. Icy roads are a major cause of accidents and commercial drivers must be ready for them.

Question 9

Which of the following is NOT true when driving on icy roads?&#10;A)Drivers should brake hard when they need to stop.&#10;B)Drivers should avoid passing other vehicles when possible.&#10;C)Drivers should not use their speed retarders on icy roads.&#10;D)Drivers should slow down on turns and curves.

Accepted Answer

When driving on icy roads drivers must not brake any harder than is necessary to stop. Hard braking will lock up the wheels and cause the vehicle to skid. This is true for all slick roads, be they iced or simply wet. To avoid hard braking, drivers should watch ahead of them far enough to see potential problems so they may brake gradually.

Question 10

When the outside temperature reaches the point where ice begins to melt, roads will normally become:&#10;A)Less slippery&#10;B)More slippery&#10;C)Stay the same in terms of slipperiness&#10;D)None of the above

Accepted Answer

It may surprise some drivers, but when temperatures go up high enough to begin melting ice from roadways, roads will become even more slippery for a while. This is because while some of the ice has melted, much of it remains. Drivers must now contend with both ice and water. The best policy when driving in this condition is to slow down and avoid hard braking.

Question 11

Which of the following can lead to wet brakes?&#10;A)Driving in heavy rain&#10;B)Driving through puddles&#10;C)Driving on melting snow or ice&#10;D)All of the above

Accepted Answer

The answer of Which of the following can lead to...

Question 12

To dry off wet brakes, drivers should do any of the following EXCEPT:&#10;A)Applying light pressure to the brakes to heat them up&#10;B)Pumping the brakes rapidly&#10;C)Pulling over and let the brakes dry off&#10;D)None of the above are correct actions.

Accepted Answer

The answer of To dry off wet brakes, drivers should...

Question 13

Commercial drivers may find that they have to drive in very hot temperatures. When performing a pre-trip inspection for hot temperature driving, drivers should pay special attention to which of the following?

A)Correct tire pressure
B)Coolant levels
C)Engine oil
D)All of the above

Accepted Answer

The answer of Commercial drivers may find that they have...

Question 14

When driving in hot temperatures drivers should check their tires every ______ miles?&#10;A)50&#10;B)100&#10;C)150&#10;D)200

Accepted Answer

The answer of When driving in hot temperatures drivers should...

Question 15

Driving at night is one of the most dangerous conditions that all commercial drivers experience. Which of the following are known hazards when driving at night?&#10;A)Reduced visibility&#10;B)Glare&#10;C)Fatigue and sleepiness&#10;D)All of the above

Accepted Answer

The answer of Driving at night is one of the...

Question 16

When driving at night, which headlights should commercial drivers should keep on:&#10;A)High beams to see better&#10;B)Low beams at all times, except in fog&#10;C)Low beams when approaching other vehicles, high beam otherwise&#10;D)None of the above

Accepted Answer

The answer of When driving at night, which headlights should...

Question 17

Low beam headlights will normally illuminate about &#173;&#173;&#173;&#173;&#173;______ feet ahead of the vehicle?&#10;A)100&#10;B)150&#10;C)200&#10;D)250

Accepted Answer

The answer of Low beam headlights will normally illuminate about...

Question 18

High beam headlights will normally illuminate about _____ feet ahead of the vehicle?&#10;A)150 to 250&#10;B)250 to 350&#10;C)350 to 500&#10;D)500 to 1000

Accepted Answer

The answer of High beam headlights will normally illuminate about...

Question 19

When driving uphill in mountain areas, drivers should use:&#10;A)High gears&#10;B)Low gears&#10;C)Mid-range gears&#10;D)Posi-traction gears

Accepted Answer

The answer of When driving uphill in mountain areas, drivers...

Question 20

When coming down mountain slopes, drivers should do all of the following except:&#10;A)Select a low gear before beginning the descent.&#10;B)Select a high gear before beginning the decent.&#10;C)Use the engine as the primary brake.&#10;D)Monitor their speed closely.

Accepted Answer

The answer of When coming down mountain slopes, drivers should...

Question 21

When driving downhill in mountain areas, drivers must avoid which of the following?&#10;A)Repeated, hard use of the brakes&#10;B)Using the engine as the primary brake&#10;C)Staying in low gear&#10;D)Maintaining a safe speed

Accepted Answer

The answer of When driving downhill in mountain areas, drivers...

Question 22

Mountain driving requires that drivers select a speed that is safe for which of the following?&#10;A)The length of the grade&#10;B)The steepness of the grade&#10;C)The weight of the vehicle and load&#10;D)Road conditions and weather&#10;E)All of the above

Accepted Answer

The answer of Mountain driving requires that drivers select a...

Question 23

The major hazard of not being in the right gear while descending a mountain road is that:&#10;A)The driver may not be able to shift into proper gear once speed picks up.&#10;B)The engine may overheat.&#10;C)The driver may grind the gears while attempting to shift.&#10;D)The clutch may overheat.

Accepted Answer

The answer of The major hazard of not being in...

Question 24

The proper way to use brakes on steep downgrades includes which of the following?&#10;A)Apply brake until speed is reduced to five mph below &#34;safe&#34; speed then release brake.&#10;B)Apply brake until speed is reduced to 10 mph below &#34;safe&#34; speed then release brake.&#10;C)Apply brake until speed is reduced to 15 mph below &#34;safe&#34; speed then release brake.&#10;D)Apply brake until speed is reduced to 20 mph below &#34;safe&#34; speed then release brake.

Accepted Answer

The answer of The proper way to use brakes on...

Question 25

In the event a vehicle is going too fast for a downgrade and cannot be slowed down by the driver, drivers should consider:&#10;A)Jumping out of the vehicle&#10;B)Using the nearest escape ramp&#10;C)Running into a wall or other solid structure&#10;D)Deliberately jackknifing the vehicle to slow it

Accepted Answer

The answer of In the event a vehicle is going...

Deck 5: Difficult Driving