Gasoline Vapour Emissions Control Mechanism

1. The mechanism for controlling fuel vapour emissions stores gasoline vapour in?

2. Preliminary diagnosis on an electronically controlled automatic transmission/transaxle consists of all the following tests, except which of the following?

3. When the clutch pedal is pushed when a car with a manual gearbox is moving downhill, what happens to the vehicle's torque and horsepower?

4. Which of the following is the final adjustment method for air brakes?

5. An air conditioning unit emits an odour. What method do you use to eliminate the odour?

6. Following the installation of a new accessory belt, you must?

7. How is the low pressure warning signal tested?

8. Which of the following is the initial step in detecting an electronic control system malfunction?

9. When reversing a tractor under a trailer, the whole air system must be?

10. Technician 1 says one heater hose is hot to the touch and the other hose is cold when the heater core is functioning okay. Technician 2 says the upper radiator hose should be at engine operating temperature, which is very hot to the touch. Which tech is correct?

11. When a technician is checking the radiator coolant level, the engine should be?

12. How can a jammed open intake check valve of a closed loop hydrostatic drive system influence system operation?

13. You execute a pre-alignment examination and see a tire with a cupped wear pattern. Why?

14. In which of the following situations must the fuel injectors of a paver be bled?

15. WCB standards stipulate that horizontally stored or transported acetylene cylinders must be repositioned in a vertical posture for a minimum of?

16. What must a car with air brakes have?

17. How do you remove rear wheel hubs if the axle cannot be removed?

18. What should a driver do to deter criminal activity and boost passenger confidence?

19. A fundamental starting control circuit powers the magnetic switch through the ignition switch and the?

20. What should you hear when the hand valve is engaged and the trailer brakes are being tested by opening the rear service line valve?

21. Which of the following will lessen the braking force produced by an air- over-hydraulic booster system?

22. A switch rated in horsepower that may interrupt the maximum operational overload current of a motor with the same horsepower rating as the switch at the rated voltage is rated in which of the following?

23. What are the windings of a solenoid with two coils called?

24. For a vertical lift to sustain two tonnes, what diameter rope is required?

25. What form of signal do knock (detonation) sensors generate?

26. A code for a coolant sensor is kept. A DVOM reveals 0 volts on the sense line circuit of the coolant temperature sensor. This might be caused by a defective connection or an open in the sense line. How should we test this?

27. What does the acronym MIG mean?

28. What prevents air loss if the air compressor develops a leak?

29. How would you define a Class B fire?

30. Which of the following would cause the hydrostatic system to cease functioning entirely?

31. How often must tachographs be calibrated?

32. How often must tachographs be inspected?

33. Which statement correctly describes the connection between torque, power, and fuel consumption?

34. An open fault in a starting solenoid switch's hold-in winding may likely result in?

35. Which of the following would be the source of the issue when the transmission shifts harshly, the input bearing is loud, and the unit has had many clutch failures?

36. Which of the following is the correct way to heat a bearing before installation?

37. A parallel circuit consists of what?

38. How can you determine if the spring brakes engage automatically?

39. To what RPM should the VAT-40 load tester be set while conducting a charging system output test?

40. Which of the following accurately describes the connection between watts and horsepower?

41. What kind of transmitting unit does the fuel gauge use?

42. What should be examined to pinpoint the precise location of a suspected weak connection issue in an electrical circuit?

43. Which of the following cannot render all gauges inoperable inside a bimetallic gauge system?

44. Which of the following is the main purpose of grounding?

45. As the metal cools after being sliced with a flame, it will?

46. What may lawfully retain a truck or bus emergency brake in place?

47. Resistance to change in the motion of a vehicle is known as which of the following?

48. What sort of lifting method has the lowest lifting capability while utilising the same rope?

49. Typically, timing chains are changed when the chain slack reaches what?

50. This antifreeze mixture will give enough winter freeze protection for a cooling system with a capacity of 9.5 litres at the lowest cost?

51. Dangerous items transported by bus must be?

52. What is the right fluid to use in a vehicle's rear axle assembly?

53. Most new automobiles are sold?

54. Which of the following cannot render the low beam headlights inoperable while the high beam headlamps function normally?

55. What do the majority of front driver-side Air Bag inflator modules consist of?

56. When is the resistance to current flow lessened, it will?

57. Which of the following is shown by the illustration below?

58. What is the right proportion of water to sulfuric acid in battery electrolyte?

59. What converts alternating electricity to direct current in an alternator?

60. The temperature transmitting unit's wire is disconnected (magnetic gauge). What does the reading of 0v on a voltmeter linked to a wire indicate?

61. After a full stop with no external leaks, which of the following would cause the brake pedal to sink to the floor?

62. Due to a fluid leak, which of the following shock absorbers should be considered for replacement?

63. A wiring diagram employs which of the following to label components?

64. Which of the following prevents the crane block from ascending?

65. The piston of a cylinder leakage tester exerts air pressure to the cylinder.

66. How frequently should the air tanks be drained?

67. Using twin element time delay fuses, the branch-circuit protection for a 1, 115v, 3 hp motor would typically have how many amps?

68. When the air-fuel combination ignites before the spark plugs, this phenomenon is known as?

69. Which of the following components on a traditional mechanical crane needs a daily oil level check?

70. Which of the following factors determines the engine's stroke?

71. What is the proper process for replacing the universal joint in the middle of a two-piece driveshaft?

72. Why is it necessary to continuously retorque wheel nuts after short-term use?

73. What is an alcohol evaporator used for?

74. What is the approximate relation between the number of teeth on the starting motor pinion gear and the number of teeth on the engine flywheel?

75. Which of the following would generate vibration, a loud crash over rough terrain, and out-of-phase driveshaft?

76. A flashback arrestor protects the operator from what while using oxy-fuel cutting and welding equipment?

77. What is the proper approach for repairing heat-shrinkable tubing?

78. Which of the following types of valve seal moves up and down with the valve?

79. Refer to the following table. What is the issue when a vehicle fails enhanced emissions due to excessive nitrogen oxides (NOx)?

80. In chilly conditions, which of the following should you do when the instrument panel sign illuminates after starting the roller?

81. Which of the following situations would cause a rotary air compressor to provide low output air?

82. How is a valve for the recirculation of exhaust gases replaced?

83. What further steps must be taken when a hydrostatic motor has failed and the motor has been replaced?

84. Should the Spiral Clock Spring (Spiral Ribbon) in the combo switch be?

85. Which of the following would result in a high temperature measurement on a rear axle's input pinion after overhaul?

86. On a tractor, an application of 60 pressure is necessary to stop when it is not linked to a trailer, while an application of 30 psi is required when it is attached to a trailer. What is required?

87. What component of a vehicle maintains or stores electricity?

88. How do you address the issue if the antifreeze in a cooling system that has been inspected for coolant contamination is cloudy?

89. What is the correct method for adding solder to a splice connection?

90. Which of the following electronically controlled suspension sensors is verified by removing the sensor's mounting bolts with the ignition on and the engine off (KOEO) and analysing the scan tool data for proper operation?

91. Which of the following might cause a car with a drained or disconnected battery to perform poorly?

92. Which of the following is most essential when removing hydraulic cylinders from a roll-off truck's dump section?

93. How do the majority of front passenger side Air Bag inflator modules fill the air bag system?

94. What is the problem with the passenger side electric door lock if the voltage tests are normal?

95. When the temperature approaches, should vehicles be let to warm up inside before being lubricated?

96. Which of the following is the most probable reason when a shop oscilloscope shows a lower voltage is necessary for the spark to leap the gap while measuring low firing voltages?

97. When utilising a hydraulic accumulator for volume and the accumulator is functioning correctly, should heat be felt?

98. Which of the following may be the cause when a technician moves the gear selector lever from the park position to the manual low position and cannot hear the detent and the pointer indicating the gear position is misaligned?

99. A flat bed trailer has a load limit posted of 5 tonnes. Several pieces of equipment that have their weight tagged by the company have been loaded on the truck. The tags show 3850 pound, 375 pounds, 1550 kilogrammes and

2973 pounds. Which of the following is the total weight in kg with all the equipment loaded on the trailer?

100. The rotational motion of an engine is known as which of the following?

101. Two technicians are discussing the 25% duty cycle of a cooling fan's electrical motor. Technician A reports that the pulse width is 25% in hertz. According to Technician B, this means the fan is ON 25% of the time and OFF 75% of the time.

102. What steps are taken if a vehicle has issues with steering, suspension, or braking?

103. What should the lubricant for manifold heat control valves be?

104. It takes a minute for the vehicle to move once the "drive" gear has been selected. Which of the following would likely lead to this issue?

105. Which of the following is the best measuring instrument to use for troubleshooting a three-phase motor’s over-current protection opened instantly when the motor is turned on?

106. Prior to reconditioning the valve seats, the valves should be?

107. What are the two components of the fuel system that expel gasoline vapour from the charcoal canister?

108. What are the methods for servicing an air tank with considerable oil and water buildup?

109. Which of the following devices controls the outputs of a computer?

110. How are frame flanges prevented from collapsing during U-bolt accessory installation?

111. When a notch is present on the head of a piston, it will typically face which of the following?

112. On a distributor ignition system, cold starts are difficult. What circumstances will result in this?

113. Which of the following components of the electrical system charges the battery?

114. How do you check the transmission fluid in an automatic transmission?

115. What does this emblem on a pair of safety boots indicate?

116. What does reversing the direction of current in a DC motor's field and armature accomplish?

117. In relation to testing a battery using an electronic conductance or continuity tester, technician 1 says some of these testers can load test a battery, but technician 2 says you need to make sure that the ignition switch and all accessories are off. Which tech is correct?

118. Which of the following tests is performed prior to removing a clogged heater core?

119. Which of the following will happen to an inline axial piston pump if the housing drain port is blocked when the pump is running at high pressure?

120. Which of the following motor oils may reduce fuel consumption?

121. What is a clutch safety switch?

122. During an injector power balancing test, a technician discovers that one injector has failed but is getting an adequate power supply. Which of the following procedures should be performed next?

123. What is the issue when a torque converter does not multiply torque?

124. When a diesel engine misfires, it misfires at all speeds and emits a cloud of smoke. What is the primary cause of this?

125. How can you determine whether the automatic leveling function of a vehicle's suspension has failed? Which method will identify the issue?

126. How is a vacuum-operated brake booster tested?

127. Which of the below would result in a heavy heel pattern on a hypoid gear set?

128. What does it mean if the rev counter rapidly lowers while ascending a hill?

129. What colour are the wiring harness connections for the air bag system?

130. Which of the following memory circuits stores error codes and other temporary data?

131. What is the picture?

132. What is the name for the duration each injector stays open?

133. Which of the following would be the most likely cause when the top radiator hose collapses flat whenever the engine is being cooled?

134. What causes an automatic gearbox to lack reverse and engine braking in the manual first gear range?

135. What is the weight limit for carrying small weapons ammo, emergency medications, and medical equipment on a bus?

136. Which process should be followed while changing a tie-rod end?

137. How is a shortage of airflow in the air conditioning system diagnosed?

138. Which of the following slings must be used to balance a load?

139. What might produce low flow while measuring the efficiency of a pump under all test pressures?

140. Which of the following is a tenet of Ohm's law?

141. Which of the following is the cooling fan on most transverse engine vehicles driven by?

142. Using the diagram below, which lever must be in what position to load the backhoe's bucket?

143. Codes for air bag storage in memory can?

144. On two of three cylinders of a bank-fire injection system, a multi-port V6 engine is exhibiting erratic operation and a shortage of fuel. It seems that adding propane improves the idle and drive. A cylinder balancing test reveals that cylinders 1 and 5 provide little power. Additional testing indicates that there are no vacuum leaks. What causes this disorder?

145. What would be the cause if a truck's front crack seal failed repeatedly?

146. What are the minimum and maximum dimensions of a shaft with dimensions of 3.750 plus or minus 0.01?

147. During the maintenance of a clutch with hydraulic control, which of the following must be replaced?

148. What does an electronic tachometer consist of?

149. What are these symbols in the diagram?

150. Which of the following tire wear is caused by camber?

151. What should be done if a service technician exhibits signs of carbon monoxide poisoning after a day of working in a closed shop?

152. The recommended ratio for replacing engine coolant with normal antifreeze is?

153. Which of the following is the most probable reason if a gearbox may be simultaneously changed into two gears?

154. What is the reason for the high resistance in the alternator output circuit?

155. Which of the following are distributor components?

156. Which of the following will result in a restricted fuel inlet?

157. Which of the following would cause a U-joint to continually deteriorate and exhibit brinelling?

158. The power window on the passenger side will only work in the down position. Which element failed?

159. How many 10-foot lengths of 2-inch-diameter electrical metallic tube (EMT) will be needed for a distance of 115 feet between connecting points?

160. Which of the following is the most likely cause of a too-short brake booster push rod?

161. What tests should be performed using a digital volt/ohm metre to discover the circuit fault when a newly-installed motor for a heating fan still lacks proper speed?

162. When considerable oil pollution is observed in the secondary reservoir, what is the most probable cause?

163. How is air delivered to the tank trailer?

164. What is a fire of class "A"?

165. Terminals intended to be used in pairs are referred to be what?

166. When repairing a faulty clutch pressure plate, should another component also be replaced?

167. A car with an automatic transmission is not shifting properly. The first diagnostic stage would consist of?

168. Which of the following answers will result in rough engine operation and low output?

169. What is the probable reason if the starter turns but the engine does not crank?

170. A first aid kit should be provided for what jobs?

171. What precautions must be taken to avoid computer damage while replacing an Electronic Control Module?

172. Which of the following pulleys rotates in the same direction as driving pulley A?

173. What will happen if the computer on a fuel-injected engine does not get an RPM signal?

174. What are the two varieties of electric fuel pumps?

175. How is this issue remedied when a whole braking system equipped with ABS has been serviced yet the pedal feels spongy?

176. To avoid seal leakage, a hydraulic motor's case drain line should?

177. A hydraulic motor circuit's cross-port relief valve's aim is to?

178. When the starting motor fails to crank the engine or cranks it too slowly, what should be checked first?

179. Thermistors are used in which parts?

180. Technician 1 believes the closed coil end of a valve spring should go against the cylinder head. Technician 2 believes all valve springs use shims to control free spring height. Which tech is correct?

181. Which of the following is the provided circle's area?

182. When a power rack and pinion steering system is stiff and difficult to spin, the fluid is first a dull grey colour. What repairs must be made?

183. How is a leak on the main side of a diesel engine fuel system detected?

184. The computer can read, but not modify, stored information.

185. In relation to a transformer that has a voltage of 600V at the primary and 24V at the secondary must be replaced for temporary troubleshooting. The only available transformer 600 V primary – 20 V secondary is illustrated in the diagram below. Which is the correct tap to be used for obtaining 24 V at the secondary?

186. When the wire is unplugged from the fuel gauge transmitting unit (bimetallic gauge) and a voltmeter attached to the wire displays pulsing 5v, what does this indicate?

187. Which component links the engine to the alternator to cause the alternator to rotate as the engine rotates?

188. How would compression be checked on a diesel engine?

189. What is the issue with a single-wire alternator whose output displays 12 V and 0 A while a 100rpm engine is operating?

190. You discover high clearances in an oil pump after examining its clearances. How do you resolve this issue?

191. What is the correct technique for installing a new or remanufactured turbocharger?

192. When removing the grease gun from a fitting after lubricating the lubrication joint, you should?

193. All of the following statements are correct when adjusting valve lash on engines with overhead camshaft cylinder heads, except which of the following?

194. How would you repair the issue if a loaded ball joint has a vertical movement of 0.130" (3.30 mm)?

195. In a hydraulic system, pressure is created by which of the following?

196. Which of the following flare kinds is used in hydraulic braking systems?

197. What is the proper way to prepare an engine hoist for lifting an engine?

198. Which of the following would cause a hydraulically operated automatic gearbox to shift too quickly from first to second while all other shift points are normal?

199. Except for the following, any of the following may cause the temperature light to stay off while the ignition switch is in the run position but the engine is not running.

200. The computer uses the MAP signal to determine?