a) Field flux b) Shape of conductors c) Type of slip rings d) Brush material Ans: (a)
a) Armature speed N b) Field flux ɸ c) Number of armature conductors d) All of these Ans: (d)
a) Facilitate high speed operation without vibration b) Produce strong magnetic field c) Reduce noise d) Improve cooling Ans: (b)
a) Excessive brush wear b) Winding fault c) Worn out insulation d) None of these Ans: (b)
a) Differentially compounded generator b) A shunt generator c) Cumulatively compounded generator d) A series generator Ans: (c)
a) A differentially compounded generator b) A cumulative compounded generator c) A shunt generator d) A series generator Ans: (a)
a) Same as simplex winding b) Same as duplex winding c) Combined lap and wave windings on a single rotor d) Duplex wave winding on a single rotor Ans: (c)
a) More turns of smaller diameter b) Less turns of larger diameter c) More turns of larger diameter d) Less turns of smaller diameter Ans: (a)
a) Yoke leading end of pole shoe b) Trailing end of pole shoe c) Yoke d) Any of the above Ans: (c)
a) Length of air gap b) Shape of the magnet core c) Flux density used in core and teeth d) All of these Ans: (d)
 Multiple Choice Question (MCQ) of Electronics page-17:241. Which of the following statement is true? a) The saturation voltage VCF of silicon transistor is more than germanium transistor. b) The saturation voltage VCE for germanium transistor is more than silicon transistor. c) The saturation voltage VCE for silicon transistor is same as that for germanium. d) The saturation voltage VCE for silicon transistor is lower than germanium transistor. |
Multiple Choice Question (MCQ) of Electronics page-16:226. Which of the following statement is correct? a) Inner electrons are always present in the semiconductor. b) Bound electrons are always present in the semiconductor. c) Free electrons are always present in the semiconductor. d) Inner and bound electrons are always present in the semiconductor. |
Multiple Choice Question (MCQ) of Electronics page-15:211. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are a) Semiconductors b) Conductors c) Insulators d) Alloys |
Multiple Choice Question (MCQ) of Electronics page-14:196. In which of the following device the base resistors are not added in the package but added externally? a) UJT b) CUJT c) PUT d) None of the above |
Multiple Choice Question (MCQ) of Electronics page-13:181. The conduction in JEFT is always by the a) Majority carriers b) Minority carriers c) Holes d) Electrons e) Holes and electrons simultaneously |