PE 3A2 CHP 8 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024/25

b - ANSWER Salient pole rotors: a) Are used on high speed alternators b) Are used on alternators not exceeding 1800 rpm c) Require no maintenance d) Are used on only single phase generators e) Are used on only three phase generators d - ANSWER Transformers function on the principle of: a) Conductance. b) High resistance to DC current. c) Interaction of residual magnetism. d) Mutual inductance. e) Mutual conductance. a - ANSWER Synchronous motors are started by: a) The Amortisseur winding. b) A shunt winding. c) A capacitor. d) A delta winding. e) A wye winding. b - ANSWER Star-delta starting: a) Is used for any type of starting. b) Is used on motors designed to run as delta connected machines. c) Is used only f