| 4149 Why should drivers put the starter switch key in your pocket during th... Answer4113 What is counter steering?... Answer2865 The most common type of foundation brakes found on heavy vehicles is t... Answer2446 Which of the following is the correct term for a long commercial vehic... Answer2396 The safety catch for the fifth wheel locking lever must be ____ for a ... Answer2364 The braking power of the spring brakes:... Answer2356 Driving a 100 foot twin trailer combination at 50 mph on a dry road in... Answer2301 When is it required for the driver to have an approved gas mask?... Answer2280 To avoid a crash, you had to drive onto the right shoulder. You are no... Answer2276 Normal oil pressure while idling is:... Answer2196 If you are being tailgated, you should:... Answer2136 You should decrease your following distance if somebody is following y... Answer2034 The crack and whip effect is a major hazard for trucks with trailers. ... Answer2016 Which one of these shipping paper discriptions for a hazardous materia... Answer2015 When checking the free play of manual slack adjusters on s-cam brakes,... Answer1994 Fanning air brakes:... Answer1943 When a substance in the materials table is written in italics, it mean... Answer1939 Liquid tight separations between compartments inside tanks are called:... Answer1898 If your truck or bus has dual parking control valves, it means that yo... Answer1891 Which of these is a good rule to follow when using a fire extinguisher... Answer1880 How many red reflective triangles should you carry?... Answer1854 These horizontal yellow lines indicate:... Answer1802 A moving vehicle ahead of you has a red triangle with and orange cente... Answer1788 You find an overheated tire during an enroute inspection. If you are h... Answer1717 Normal engine temperature ranges from:... Answer1690 If a materials class is the word FORBIDDEN, what kinds of materials ar... Answer1641 If you try to downshift while coming down a mountain, you might:... Answer1633 Why should you back toward the driver's side?... Answer1615 If you have a major leak in the service line and you put on the brakes... Answer1600 How can you test the low pressure warning signal?... Answer1579 Which is true regarding bridge laws?... Answer1559 When your cargo tank has baffles, what handling effect do you expect?... Answer1541 To ensure air is supplied to the second trailer on a combination vehic... Answer1536 Which of the following statements about large trucks is false?... Answer1529 How much longer can you drive for unexpected adverse driving condition... Answer1510 Describe the proper braking technique when going down a long steep dow... Answer1489 During the 14 consecutive hour duty period, you are allowed to drive y... Answer1488 The hazardous waste manifest should be:... Answer1447 What does progressive shifting mean?... Answer1446 When a coolant container is part of a pressurized system, you can:... Answer1432 What type of fire extinguisher is required in the power unit of a plac... Answer1430 In normal driving, some drivers use the hand valve before applying the... Answer1418 You are driving a 40-foot vehicle at 35 mph. Driving conditions are on... Answer1416 If the air compressor leakes, which mechanism keeps the air in the tan... Answer1405 When should you downshift automatic transmissions?... Answer1397 Three things add up to the total stopping distance for your vehicle. T... Answer1397 You do not have a hazardous materials endorsement on your commercial d... Answer1377 When making emergency stops with air brakes and using the stab braking... Answer1365 When you are not sure who has the right-of-way, the safest course of a... Answer1348 Which of these statements about stopping distance and speed is true fo... Answer1338 Separations (between compartments inside tanks that have openings or h... Answer1309 The air leakage rate for a combination vehicle (with engine off and br... Answer1294 For combination vehicles, when the front trailer supports are up and t... Answer1279 The parking brake should be tested while the vehicle is:... Answer1278 You should be extremely cautious when driving smooth bore tankers, esp... Answer1265 Liquid in a tank with baffles can have what kind of surge?... Answer1262 A steady yellow light at an intersection means you must:... Answer1258 When fueling a placarded vehicle, someone must always be:... Answer1246 The air compressor governor controls:... Answer1227 This is the part of the kingpin that the locking jaws should close aro... Answer1224 Outage means:... Answer1202 You should know that your brakes are fading when:... Answer1199 If the driver crosses the air lines when hooking up to an old trailer:... Answer1190 Some large trucks have convex or spot mirrors, which:... Answer1180 How far ahead should you look when driving a truck?... Answer1167 Overloading your trailer can result in the following EXCEPT:... Answer1153 If the trailer breaks away from a combination vehicle, pulling apart b... Answer1152 With a Class C drivers license a person may drive:... Answer1150 Which of these is a good rule to follow when using a fire extinguisher... Answer1149 When you are parked at the side of the road at night, you must:... Answer1133 Which of these statements about double clutching and shifting is true?... Answer1126 You need to be extremely cautious when driving smooth bore tankers. Th... Answer1114 You should plan ahead when you park your vehicle so that:... Answer1110 When driving down a long steep hill, you should:... Answer1110 The amount of liquid to load into a tank depends on:... Answer1108 What is a supply pressure gauge used for?... Answer1088 Baffles in liquid cargo tanks do not usually prevent the movement of s... Answer1074 Which of these about emergency steering of tankers is true?... Answer1054 When driving on a clear night, you must dim your headlights from high ... Answer1051 If heavy fog appears, you should:... Answer1048 Converter dollies:... Answer1024 Which of these statements is correct about seeing ahead?... Answer1016 Which of the following statements is true about overhead clearance?... Answer1000 When coupling a tractor to a semi trailer and have backed up but are n... Answer984 What should wheel bearing seals be checked for?... Answer980 Empty tanker trucks:... Answer968 You are driving a new truck with a manual transmission. What gear will... Answer956 Before backing under a trailer, make sure:... Answer947 Retarders prevent you from skidding on slippery surfaces.... Answer944 Front wheel brakes work well in all conditions.... Answer935 You are checking your tires for a pre-trip inspection. Which of these ... Answer935 How many hours can a truck driver drive in Alaska?... Answer925 You are driving a 40 foot vehicle at 45mph. Driving conditions are ide... Answer924 What are two special conditions where you should downshift?... Answer920 In the event of an accident you should remember to do the following EX... Answer917 After 33 consecutive hours off-duty, you may legally restart your 60 o... Answer910 You should check the height of the trailer before connecting a convert... Answer908 The term Gross Combination Weight refers to:... Answer899 Air loss in a straight truck or bu should not be more than ______ with... Answer895 What are the three maximum duty Limits at all times?... Answer |
