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CDL 2k17
Q&A
| Question | Answer |
|---|---|
| How does tire pressure affect hydroplaning? | Hydroplaning is more likely to occur when tire pressure is low. |
| double clutching? | Release the accelerator, push down on the clutch pedal and shift to neutral; then release the clutch pedal; then let the engine and gears slow down to the RPMs required for the nest gear; then push in the clutch pedal and shift to the higher gear. |
| In emergencies you may be able to miss an obstacle more quickly than you can stop. What is a characteristic of heavy vehicles when they are turned quickly? | Top-heavy vehicles and tractors with multiple trailers may flip over when turned quickly. |
| You are driving on a two-lane road when an oncoming driver drifts into your lane and is heading straight for you. What is one action to take? | Steer to right |
| In making a quick turn what is a point to remember? | Do not apply the brake when you are turning. |
| What is the major cause of most serious skids? | Driving too fast for road conditions. |
| What is something that you must do when using a fire extinguisher to fight a fire? | Aim at the base of the fire. |
| As a driver for what are you responsible regarding your cargo? | Inspecting your cargo, knowing that your cargo is securely tied down or covered, recognizing overloads and poorly balanced loads. |
| What is important about the center of gravity of a load? | A high center of gravity means you are more likely to tip over. |
| What is the minimum distance between tie downs to prevent shifting of cargo? | Every ten feet. |
| What is the purpose of blocking and bracing? | To keep cargo from sliding, falling and getting out of balance. |
| Controlling Speed | Driving too fast is a major cause of crashes and fatalities. You must adjust your speed to suit weather conditions, the road |
| Perception distance | is the distance your vehicle travels from the time your eyes see a hazard until your brain recognizes it |
| Reaction distance | is the distance traveled from the time your brain tells your foot to move from the accelerator until the time your foot pushes the brake pedal. |
| Braking distance | is the distance it takes the vehicle to stop once you hit the brakes |
| when driving in packed snow? | reduce your speed by ½ or more. |
| when the road is icy? | reduce your speed to a crawl. Stop driving as soon as you can. |
| should you Remove ice from the radiator shutters? | If the shutters freeze or the winterfront is closed too much, the engine may overheat. |
| Which of these statements is NOT true about bad weather driving conditions? | as the rain continues, the road becomes more slippery then it did when it began to rain |
| If your brakes get wet while driving on a rainy day, what can happen when you apply the brakes? | Trailer-Jacknifing |
| Can federal inspectors inspect your truck or bus? | yes and they can place it out of service |
| Which of these statements is NOT true about engine belts in hot weather? | cracking may occur but its not a safety threat |
| You are driving a heavy vehicle and must exit a highway using an off ramp that curves downhill. You should | slow down to safe speed before taking curve |
| In case of a hydraulic brake failure do not | shift up |
| Which of these statements about cargo loading is true? | state laws dictate legal weight limit |
| Tie-downs must be of the proper type and strength. The combined strength of the cargo tie-downs must be enough to lift | 1 and 1/2 times the weight or the cargo tied down |
| Brake fade | can make the brakes become hot |
| What should you do if a car coming toward you at night keeps its high beams on? | Look toward the right edge of your lane or road |
| Bridge formulas permit | less maximum axle weight for axles that are close together |
| When driving through roadway work zones, you should | watch for sharp pavement drop offs |
| Blood alcohol concentration (BAC) is calculated by measuring a person's | body weight |
| Cargo that can shift should have at least __ tie-downs(s). | 2 |
| While driving, ice builds up on your wipers and they no longer clean the windshield. You should | stop safely an fix problem |
| Which of these statements about managing space is true? | when road slippery keep much more space in front |
| If a straight vehicle (no trailer or articulation) goes into a front-wheel skid, it will | go straight ahead even if steering is turned |
| The "load" means | maximum safe weight a tire can carry |
| When looking ahead of your vehicle while you are driving, you should look | backn forth near and far |
| Name two situations in which the legal maximum weights may not be safe to haul. | during bad weather and mountains |
| When roads are slippery, you should | make turns carefully |
| While driving, ice builds up on your wipers and they no longer clean the windshield. You should | stop safely fix the problem |
| trucks that have big swing is called | offtracking |
| Converter dollies built on or after March 1, 1998 are required to have anti-lock brakes. These dollies will have | a yellow lamp on the left side of dolly |
| In your pre-trip inspection, you are checking your steering and exhaust systems. Which of these problems should be fixed before the vehicle is driven? | steering play in excess of 10% |
| The braking effect of the engine is greatest when the engine is _____ the governed rpm and the transmission is in the ______ gears. | near; lower |
| Which of these is true about the radiator shutters and the winterfront? | you should remove ice from shutters |
| The purpose of a baffle is to | control load the surge |
| What does "axle weight" mean? | the weight transmitted to the ground by set of axles |
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younggg