a) The regulation of each armature should be the same b) Their series field resistance should be equal c) Their ratings should be equal d) None of these Ans: (a)
a) Bipolar generators b) Shunt generators c) Series generators d) Compound generators Ans: (d)
a) Zero b) 20% c) 30% d) 40% Ans: (a)
a) Load voltage and field current b) Generated emf and armature current c) Load current and terminal voltage d) Load current and voltage drop in armature winding Ans: (c)
a) Armature current and generated emf b) Load current and terminal voltage c) Field current and no-load voltage d) Armature current and IR drop Ans: (a)
a) Armature drop b) Armature reaction c) Both (a) and (b) d) None of these Ans: (b)
a) Mechanical losses b) Magnetic losses c) Both (a) and (b) add together d) None of these Ans: (c)
a) Field losses of shunt generator b) Armature losses of a compound generator c) Stray losses d) Both (a) and (b) added together Ans: (d)
a) Copper losses b) Hysteresis losses c) Eddy current losses d) Winding losses Ans: (d)
a) 60 to 70% b) 70 to 80% c) 80 to 90% d) 85 to 95% 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 |