This set of DC Generator Problems with Solution focuses on problems based on Types of DC Generator. DC Generator Problem 1 A shunt generator delivers 450 A at 230 V …
This set of Electrical Machines Multiple Choice Questions & Answers (MCQs) focuses on “Synchronous Motors ”. This is a set of Synchronous Motors MCQ with detailed solution. Synchronous Motor MCQ …
Part 1Part 2Part 3Part 4Part 5 1. A circuit breaker is (A) power factor correcting device (B) a device to neutralize the effect of transients (C) a waveform correcting …
46. The short coming of repulsion motor is (A) variation of speed with load (B) low power factor (C) tendency to spark at brushes (D) all of the above. Check …
16. A winding is having a number of slots is equal to the number of poles, then this winding is called (A) concentrated winding. (B) short pitch winding. (C) full pitch …
1. In an alternator, voltage drops occurs in (A) armature resistance only (B) armature resistance and leakage reactance (C) armature resistance, leakage reactance and armature reaction (D) armature resistance, leakage …
Part 1Part 2Part 3Part 4Part 5 1. A capacitor start single phase induction motor will usually have a power factor of (A) unity(B) 0.8 leading(C) 0.6 leading(D) 0.6 lagging. Check …
Part 1Part 2Part 3Part 4Part 5 16. Out of the following circuit breakers, which one has the lowest voltage range ? (A) Air-break circuit breaker (B) Tank type oil …
1. Overall efficiency of steam locomotive system is close to (A) 5 to 10%(B) 25 to 30%(C) 55 to 60%(D) 75 to 80%.Check AnswerA2. In a steam locomotive electric power …
46. The windings for an alternator are I. 36 slots, four poles, span 1 to 8 II. 72 slots, six poles, span 1 to 10 III. 96 slots, six poles, …
Part 1Part 2Part 3Part 4Part 5 31. In order to reduce the harmonics in the emf generated in an alternator (A) slots are skewed (B) salient pole tips are chamfered …
31. The type of starting relay used on single phase hermetic motor is (A) hot wire relay (B) timing relay (C) current coil relay (D) voltage coil relay (E) any …
Part 1Part 2Part 3Part 4Part 5 16. Single phase motors are commercially manufactured up to A 1 H.P. B 2 H.P. C 5 …
