1) 'Work' is only achieved when the energy is: (check one box only) a) stored. b) released. c) captured. d) harnessed. 2) In a fully charged, lead-acid battery, the active material on the positive plate is:􀂉 1. stored. a) lead peroxide. b) lead. c) lead oxide. d) lead sulphate. 3) Fuses prevent circuit damage by: a) decreasing circuit resistance. b) limiting voltage increases. c) reducing wiring length. d) stopping excessive current flow. 4) An ammeter must always be connected: a) in series with the circuit. b) in parallel to the circuit. c) across the battery terminals. d) across the earth. 5) Current in a series circuit: a) varies irregularly from point to point. b) is always Direct Current. c) is the same in all parts of the circuit. d) steadily declines around the circuit. 6) One purpose of the capacitor in a contact breaker coil ignition system is to: a) assist in the rapid collapse of the magnetic field. b) prevent arcing at the rotor arm tip. c) hold a charge until the spark is required. d) break the primary circuit at the correct time. 7) If more branches are added to a parallel circuit, overall circuit resistance: a) stays the same. b) increases. c) decreases. d) depends on current flow. 8) The three requirements for electro-magnetic induction are: a) amps, volts and ohms. b) electrons, protons and current flow. c) a conductor, electrons and a magnetic field. d) a conductor, a magnetic field and relative movement. 9) According to Ohm’s Law, Current equals: a) Voltage times Resistance. b) Voltage divided by Resistance. c) Resistance divided by Voltage. d) the reciprocal of Voltage times Resistance. 10) The starter motor pinion engages the: a) clutch plate assembly. b) pressure plate assembly. c) torque converter. d) flywheel ring gear. 11) In optical type sensors, a light emitting diode can be used to transmit a fine beam of light to a: a) thyristor. b) photo cell. c) photo resistor. d) photo diode. 12) The power consumed by headlight bulbs is normally measured in: a) volts. b) amps. c) watts. d) millimeters. 13) The stator is: a) a stationary electromagnetic field. b) a rotating electromagnetic field. c) a stationary winding. d) a rotating winding. 14) Wiring diagrams give information about: a) circuit connections and color codes. b) voltage applied to a circuit. c) current flow to components. d) circuit resistance. 15) Series wound starter motors produce maximum torque: a) at high speed. b) at stall. c) just when the engine starts. d) at all speeds. 16) The alternator converts: a) chemical energy to electrical energy. b) electrical energy to mechanical energy. c) mechanical energy to electrical energy. d) mechanical energy to chemical energy. 17) Bulb filaments are normally made from: a) copper. b) steel. c) tungsten. d) aluminum. 18) The alternating current in an alternator stator is rectified to direct current by: a) the use of two slip rings. b) using a rotor instead of an armature. c) means of power diodes. d) using exciter diodes. 19) Exciter diodes are used in some alternators to: a) indicate the alternator is charging. b) start alternator charging. c) connect stator windings to rectifier diodes. d) supply current from stator windings to rotor. 20) In an alternator system the maximum current output is regulated by: a) the inductive reactance of the stator windings. b) the voltage regulator. c) mutual induction. d) the positive diodes. 21) The function of a diode is to: a) allow current to flow in either direction. b) stop current flow in one direction. c) allow voltage to be applied. d) convert DC to AC. 22) In an alternator the initial excitation current from the battery is supplied to the: a) rotor field coil. b) stator windings. c) positive diodes. d) negative diodes. 23) The main advantage of an alternator is that it: a) keeps voltage down to within limits. b) controls amperage easily. c) takes less engine power to run. d) produces high output at low speeds. 24) Conventional current flow is from: a) negative to positive. b) positive to negative. c) AC to DC. d) DC to AC. 25) An electric motor which has its field coils connected in parallel with the armature windings is said to be: a) series wound. b) compound wound. c) series parallel. d) shunt wound. 26) The main characteristic of a series wound starter motor is: a) high current flow at high speed. b) high torque at high speed. c) low current at low speed. d) high torque at low speed. 27) The field coils of a starter motor are wound around the: a) armature. b) carcass. c) pole shoes. d) frame. 28) An over-running clutch is used in conjunction with: a) an inertia starter motor drive. b) a pre-engaged starter motor drive. c) a geared reduction starter motor drive. d) an armature brake fitted to the commutator. 29) All matter is made up of: a) nucleus. b) protons. c) atoms. d) electrons. 30) A material with more free electrons is commonly referred to as: a) a conductor. b) a resistor. c) an insulator. d) a semi-conductor. 31) A fully charged battery that has been disconnected has the potential to do work, so it is referred to as a: a) source of electrons. b) source of resistance. c) source of current. d) source of energy. 32) The starter motor converts: a) mechanical energy into electrical energy. b) mechanical energy into chemical energy. c) electrical energy into chemical energy. d) electrical energy into mechanical energy. 33) The main beam of a vehicle's head lights provides a: a) bright light for highway driving. b) bright light for urban driving. c) spot light for higher speed driving. d) spot light for highway driving. 34) Electrical power is calculated from: a) voltage divided by current. b) voltage times current. c) current divided by voltage. d) the reciprocal of voltage times current. 35) In a very simple alternator, what does the rotating magnet induce in the stationary windings? a) A direct current flow. b) An alternating current flow. c) A variable current flow. d) A constant current flow.

Electrical (Big Quiz)

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