a) Increased b) Decreased c) Removed d) Short-circuited Ans: (b)
a) Dam, reservoir, catchment area b) Tunnels, surge tanks, pipelines and tailrace c) Hydraulic turbines and coupled alternators d) All of these Ans: (d)
a) Close to the power house b) At an elevated place c) Both (a) and (b) above d) At a lower place Ans: (c)
a) Reaction turbines for low and medium heads b) Impulse turbines for medium and high heads c) Both (a) and (b) above d) Pelton turbines for low heads Ans: (c)
a) Opened b) Closed c) Loaded d) Both (b) and (c) above Ans: (a)
a) More cost of installation b) Less maintenance and fuel cost c) Both (a) and (b) above d) Low depreciation charges Ans: (c)
a) Discharge duration curve b) Hydrograph c) Load curve d) Flow histogram Ans: (b)
a) Cylindrical rotor b) Salient pole rotor c) Nonsalient pole rotor d) Round rotor with ac excitation Ans: (b)
a) Mc b) 1/2 m2c c) mc2 d) 1/2 mc2 Ans: (b)
a) 0.235 b) 235 c) 2.35 d) 0.7 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 |