Hello all it's time to post 20 Electrical Multiple Choice Questions .......
Electrical engineering 20 MCQ :
1) If two capacitances C1 and C2 are connected in Parallel then the equivalent capacitance is given by
a) C1C2
b) C1/C2
c) C1C2/C1+C2
d) C1+C2
2) A resistor is connected across a 50 V Source. the current in the resistor if the color code is red,orange,silver is
a) 2mA
b)2.2mA
c)214mA
d)21.4 mA
3) Electrical Resistivity "r" is
a) Low for copper & high for alloy
b)High for copper and low for alloy
c)Low for copper as well as for alloy
d) High for copper as well as for alloy
4) The rate of change of current in a 4H inductor is 2 Amps/sec Find the value of the voltage across the inductor
a) 8V
b) 0.8 V
c) 2V
d) 16 V
5) A linear circuit is one whose Parameters
a) change with change in current
b) change with change in Voltage
c) do not change with voltage and current
d)none of the above
6) An active element in a circuit is one which
a) Supplies the energy
b) Receives the energy
c) dissipate energy
d) both receives and supplies the energy
7) Thevinins theorem cannot be applied to
a) active circuit
b) linear circuit
c) nonlinear circuit
d) passive circuit
8) If number of turns of a coil is increased it's inductance
a) remains the same
b)is increased
c) is decreased
d) none of the above
9) The unit of permeability is
a) WB/At ×m
b) At/m
c)At/WB
d) WB
10) The area of the hysteresis loop will be least for the following material is
a) wrought iron
b) hard steel
c) silicon steel
d) soft iron
11) If in An RLC series circuit , the frequency is below the resunant frequency then
a) XL=Xc
b) Xc<XL
c) Xc>XL
d) None of the above
12) Creeping in a single phase Induction type energy meter may be due to
a) over compensation for friction
b) over voltage
c) vibrations
d) all of the above
13) Which instrument is used to measure the high resistance
a) Kelvins Doubble bridge
b) Wheat Stone Bridge
c) Carey-Foster Bridge
d) Megger
14) The no load input power to a transformer is practically equal to
a) Iron loss
b) Copper Loss
c) Eddy Current Loss
d) Windage loss
15) Which of the following motor is used in mixers?
a) Repulsion Motor
b) reluctance motor
c) hysteresis motor
d) universal motor
16) which of the following fault come under the symmetrical faulta
a) LG fault
b) LL fault
c) LLG fault
d) LLLG fault
17) The acceptable grounding resistance for the domestic appliances is
a) 0.5 ohm
b) 1ohm
c) 1.5 ohm
d) 2 ohm
18) Which of the following motor is not self starting
a) Squrriel cage Induction Motor
b) Slip Ring Induction Motor
c) Synchronous Motor
d) Dc series motor
19) If the power factor is high then the consumer maximum KVA demand
a) increases
b) decreased
c) Remains the same
d) becomes zero
20) An amplifier has a gain of 10,000 expressed in decibels the gain is
a) 10
b) 40
c) 80
d) 100
Please Comment Below If any one is wrong answers
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| Electrical MCQ |
1) If two capacitances C1 and C2 are connected in Parallel then the equivalent capacitance is given by
a) C1C2
b) C1/C2
c) C1C2/C1+C2
d) C1+C2
2) A resistor is connected across a 50 V Source. the current in the resistor if the color code is red,orange,silver is
a) 2mA
b)2.2mA
c)214mA
d)21.4 mA
3) Electrical Resistivity "r" is
a) Low for copper & high for alloy
b)High for copper and low for alloy
c)Low for copper as well as for alloy
d) High for copper as well as for alloy
4) The rate of change of current in a 4H inductor is 2 Amps/sec Find the value of the voltage across the inductor
a) 8V
b) 0.8 V
c) 2V
d) 16 V
5) A linear circuit is one whose Parameters
a) change with change in current
b) change with change in Voltage
c) do not change with voltage and current
d)none of the above
6) An active element in a circuit is one which
a) Supplies the energy
b) Receives the energy
c) dissipate energy
d) both receives and supplies the energy
7) Thevinins theorem cannot be applied to
a) active circuit
b) linear circuit
c) nonlinear circuit
d) passive circuit
8) If number of turns of a coil is increased it's inductance
a) remains the same
b)is increased
c) is decreased
d) none of the above
9) The unit of permeability is
a) WB/At ×m
b) At/m
c)At/WB
d) WB
10) The area of the hysteresis loop will be least for the following material is
a) wrought iron
b) hard steel
c) silicon steel
d) soft iron
11) If in An RLC series circuit , the frequency is below the resunant frequency then
a) XL=Xc
b) Xc<XL
c) Xc>XL
d) None of the above
12) Creeping in a single phase Induction type energy meter may be due to
a) over compensation for friction
b) over voltage
c) vibrations
d) all of the above
13) Which instrument is used to measure the high resistance
a) Kelvins Doubble bridge
b) Wheat Stone Bridge
c) Carey-Foster Bridge
d) Megger
14) The no load input power to a transformer is practically equal to
a) Iron loss
b) Copper Loss
c) Eddy Current Loss
d) Windage loss
15) Which of the following motor is used in mixers?
a) Repulsion Motor
b) reluctance motor
c) hysteresis motor
d) universal motor
16) which of the following fault come under the symmetrical faulta
a) LG fault
b) LL fault
c) LLG fault
d) LLLG fault
17) The acceptable grounding resistance for the domestic appliances is
a) 0.5 ohm
b) 1ohm
c) 1.5 ohm
d) 2 ohm
18) Which of the following motor is not self starting
a) Squrriel cage Induction Motor
b) Slip Ring Induction Motor
c) Synchronous Motor
d) Dc series motor
19) If the power factor is high then the consumer maximum KVA demand
a) increases
b) decreased
c) Remains the same
d) becomes zero
20) An amplifier has a gain of 10,000 expressed in decibels the gain is
a) 10
b) 40
c) 80
d) 100
Please Comment Below If any one is wrong answers
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