a) 1ɸ motor b) 2r ɸ motor c) 3 ɸ motor d) All of these Ans: (c)
a) Break the fault current b) Sense the fault c) Sense the fault and direct to trip the circuit breaker d) All of these Ans: (c)
a) Equal to voltage element torque b) Greater than voltage element torque c) Less than voltage element torque d) None of these Ans: (a)
a) Transformer b) Overhead line equipment c) Alternator d) Motors Ans: (b)
a) Air gap b) Back up stop c) Number of ampere turns d) All of these Ans: (c)
a) Impedance type b) MHO type c) Reactance type d) All of these Ans: (b)
a) Inter-turn fault b) External faults c) Rotor faults d) Every internal faults Ans: (d)
a) 0.0001 sec b) 0.001 sec c) 0.01 sec d) 0.1 sec Ans: (c)
a) Directional type b) Non-directional type c) Unidirectional type d) None of these Ans: (a)
a) Load b) Internal faults c) Both (a) and (b) d) None of these Ans: (b)
 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 |