Name of the electronic principle used to stop the wiper system against momentum, once the wipers have been switched off?, Regenerative braking, Reactive braking, Electro-magnetic induction, Electromotive force, Which of the following statements are correct?, Hertz is the unit of magnetic flux, 1 Hertz = 1 cycle per second, 1 Hertz = 360 degrees of rotation, The unit of power is the Hertz, On a SRS with an airbag and seatbelt pre-tensioner what will be occurring from 10-15 milliseconds after impact?, Airbag is inflated and the pre-tensioning is complete, Airbag starts to inflate and pre-tensioner moving, Impact identified and pre-tensioner ignition, Driver hits the bag and the pre-tensioner releases, What device used to control the duration of the CI glow plug heater operation?, Solenoid switch, Relay and resistor, Relay and timer, Thermistor and relay, What type of trace would be expected on an oscilloscope, when testing the output from a hall effect sensor?, Square wave, Saw tooth, Sine wave, Cosine wave, Isolating the power supply when replacing electronic components can prevent the component from being damaged?, True, False, An ABS control unit calculates that a wheel is about to lock by?, Sensing a sudden drop in speed from the vehicle tachograph, Sensing a sudden drop in A.C voltage from a wheel sensor, Sensing a sudden drop in D.C voltage from a wheel sensor, Sensing the deceleration force of the vehicle speed, How many motors are used in a typical single electric mirror adjusting system?, 0, 1, 2, 3, In a hybrid vehicle, which of the following mainly controls the amount of regenerative braking which takes place?, All four wheel speed sensors, The main brake pedal switch, Master cylinder pressure sensor, The ABS modulator valves, What are the symptoms likely to be if the alternator warning lamp illuminates?, A battery no charge situatio, An overcharge situation will occur, The alternator only charges at high revs, The alternator charges only at idle, The function of the low-pressure switch in an air conditioning system is to:, Disconnect the compressor due to low gas/ liquid level, Increase the air flow through the condenser when required, Reduce evaporator temperature when required, Regulate refrigerant flow when the system is switched on, To prevent the vehicle battery being overcharged, an alternator will be fitted with a regulator with an integral:, Slip ring, Rectifier pack, Brush set, Zener diode, What are the main advantages of using LED lighting, They produce a bright blue light from 1 LED, Quick reaction and greater reliability, They are cheaper to produce than normal bulbs, Slow reaction time increasing life expectancy, What will be the effect of a lamp with a poor earth connection?, Lamp will be brighter, The bulb will blow, Circuit fuse will blow, Lamp will be dim, A strain gauge pressure sensor incorporates the use of?, Sensing resistors, Magnetic induction, Piezo crystals, A thermistor, The diagram represents a wave form from an ABS wheel sensor. What happens to the Sine wave as the wheel rotates faster?, Voltage increases and the frequency stays the same, Voltage remains the same and the frequency increases, Voltage increases and the frequency increases, Voltage remains the same and the frequency stays the same, In relation to cooling and air conditioning, what is meant by the term convection?, Transfer of heat which involves a fluid, The difference in air pressure, Transfer of heat using waves of particles, Flow of heat through a material, A diesel glow plug is suspected to be faulty. The test to be carried out would be:, An amperage check with an ohmmeter, A switching check with an oscilloscope, A resistance test with an ohmmeter, A voltage check with an ohmmeter, Advantage of multiplexing systems, compared to standard wiring is it saves weight and reduces the number of connections?, True, False, What should the resistance reading of a radiator cooling fan switch be when measured at a room temperature of 18°C?, 100 Ohms, 0 Ohms, 10k Ohms, Infinity, A gas discharge bulb contains..., Electrodes, xenon, mercury and metal salts, A tungsten electrode, silver and metal salts, Electrodes, argon, silver and metal salts, Wire elements, helium gas and metal salts, Which of the following statements is correct?, A flemings left hand rule is used with generators, Flemings left hand rule is used with ohms law, Flemings right hand rule is used with motors, Flemings left hand rule is used with motors, How is the compressor clutch engaged in the air conditioning system?, Electromechanically, Mechanically using gears, Using permanent magnets, Using a solenoid, What is an acceptable reading when carrying out a voltage drop test on the negative side of the starter motor circuit?, Less than 0.25v, Less than 2.5v, Greater than 1.75v, Greater than 2.5v, What does a central locking door actuator usually contain?, Drive motor and gear, Solenoid and rocker switch, Motor and solenoid, Solenoid and gear, When checking an alternator for current output, what reading would be expected on an ammeter?, Within 20% of the rated output, Within 10% of the rated output, Within 1% of the rated output, Within 30% of the rated output, What would be the symptom if the system earth failed on a basic electric window circuit?, Window would only go up, Window would only go own, Window would not operate, Window would operate slowly, When checking a parasitic drain, a voltmeter is connected in a parallel with the battery and all consumers are switched off?, True , False, The term PWM stands for..., Pulse wide modules, Primary wired modules, Pulse width modulation, Pulse weighted meters, An ohmmeter test on a thermistor indicated: 0C = 4500 ohms*20C = 1200 ohms*100C = 200 ohms. This type of thermistor is?, Piezo crystal pressure sensor, Negative temperature coefficient, An inductive pick-up sensor, Positive temperature coefficient.

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