Electrical Machines Expected MCQ PDF 6 For Coal India Limited (CIL) MT Exam 2017 - All Exam Review Adda
1) A machine without commutator, providing an ac emf to the external circuit is called as a. D.C. generator b. Alternator c. Synchronous motor d. Transformer ANSWER: Alternator 2) Practically, most of the alternators prefer which type of construction? a. Rotating field type b. Rotating armature type c. Both are equally important d. None of these ANSWER: Rotating field type 3) In synchronous machine poles are made up of thick steel laminations. In salient pole type rotor a. Poles are projected out from the surface of the rotor b. The unslotted portions of the cylinder itself acts as the poles c. Both (a)