Q.64 An energy meter having a meter constant of 1400 rev. per kWh is found to make 6 revolutions in 54 seconds. The load power is:Ans 1. 188 .23 W2. 285.71 W3. 303.67 W4. 200 WCorrect Ans Provided: ...
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Q.53 Consider the following statements about N-type semiconductor and select the most appropriate option. a. N-type semiconductor is obtained by adding trivalent as impurity.b. Holes constitute the majority carriers.Ans 1. Only b is true2. Both a and b ...
Q.31 Which of the following are characteristics of an op-amp as voltage follower?Ans 1. High output impedance2. Low current gain3. Low input impedance4. High input impedanceCorrect Ans Provided: 4
Q.11 Which of the following is a very accurate Analog to Digital Converter?Ans 1. Voltage to frequency ADC2. Flash type ADC3. Dual slope type ADC4. Ramp type ADCCorrect Ans Provided: 3
Q.43 Which of the following statement is correct about dielectric material?Ans 1. Dielectric material have a high specific resistance and negative temperature coefficient of resistance.2. Dielectric material have a low specific resistance and zero temperature coefficient of resistance.3. ...
Q.6 Thermal energy to electrical energy is done by:Ans 1. thermoelectric generator2. fuel cell3. solar cell4. batteryCorrect Ans Provided: 1
Q.16 A load draws a power of 15 KW at a power factor of 0.8 lagging. The lagging kVAR drawn from the supply will be:Ans 1. 9 kVAR2. 12 kVAR3. 11.25 kVAR4. 14 kVARCorrect Ans Provided: 3
Q.36 Which of the following is an example of diamagnetic material?Ans 1. Calcite2. Nontronite3. Biotite4. SideriteCorrect Ans Provided: 1
Q.67 Which of the following is NOT an advantage of induction type energy meters?Ans 1. The moving element has no electrical contact with the circuit.2. They have high torque is to weight ratio.3. They are less affected by ...
Q.38 When the length of an overhead transmission line is about 50-150 km and line voltage is moderately high, it is considered as:Ans 1. medium transmission lines2. long transmission lines3. short transmission line4. neutral lineCorrect Ans Provided: 1
