objective questions of basic electrical Engineering

1. 1. The voltage lags the current by Pi/2 cycle in a:

Purely resistive circuit
Purely inductive circuit
Purely capacitive circuit
Circuit containing resistance, capacitance and inductance


2. 2. A terminal where more than two branches met is called

Node
Terminal
Loop
None of the above


3. An AC series circuit is composed of a resistance of 20 ohm, inductive reactance of 40 ohm, and a c

320 V
32 V
220 V
22 V


4. . Which is considered as the effect of a dielectric material? 

Increasing capacitance
Decreasing capacitance
Reducing the working voltage
Increasing the distance between the plates


5. A capacitive load always has a______ power factor.

Leading
Lagging
zero
unity


6. Kirchhoff’s laws (KCL and KVL) are applicable to:

DC circuits
AC circuits
Passive networks alone
DC as well AC circuits


7. Two capacitors of capacitance 9 µF and 18 µF in series will have a total capacitance of: 

27 µF
6 µF
162 µF
180 µF


8. If three 9 mH inductors are connected in parallel without mutual inductance then the total inducta

3 mH
9 mH
27 mH
18 mH


9. The winding resistance of a coil can be increased by

using a thinner wire
increasing the number of turns or using thinner wire
increasing the number of turns
changing the core material


10. Current is measured in

watts
volt
henry
amperes

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