- The function of the heat sink part of the rectifier diode pack in an alternator is to:
(a) Conduct heat away from the diodes in order to protect them
(b) Provide a solid base for the transistors
(c) Act as a voltage regulator
(d) Prevent the stator from overheating.
2. Machine sensing, where the alternator output voltage is used to vary the current in the rotor windings, is a method of controlling:
(a) The phase angle of the a.c. output
(b) The voltage output of the alternator
(c) The self-exciting voltage of the alternator
(d) The brush pressure on the slip rings.
3. A slack alternator drive belt may cause the:
(a) Engine to overheat
(b) Engine to lose speed
(c) Battery to become discharged
(d) Charging rate to be too high.