Question Paper Electrical Engineering
1. Cells are conmected in parallel in order to increase the
(1) Life of the cells
(2) Efficiency
(3) Current capacity
(4) Voltage rating
Ans (3)
2. Resistances can be accurately measured by :
(1) Kelvin bridge
(2) Wheatstone Bridge
(3) Wien's Bridge
(4) Schering Bridge
Ans (1)
3. Millaman's theorem yields :
(1) Equivalent voltage source
(2) Equivalent voltage or current sources
(3) Equivalent resistance
(4) Equivalent impedance
Ans (2)
4. While drawing vector diagram for a series
(1) Voltage
(2) Current
(3) Power
(4) Phase angle
Ans (2)
5. It is know that two 2k𝛺 2W resistors are connected in parallel . Find the combined resistance and wattage rating.
(1) 2𝛺,4w
(2) 1𝛺, 4W
(3) 1𝛺, 2W
(4) 2𝛺, 2W
Ans (2)
6. Equivalent resistance between point A and B in following figure is :
(1) 10 Ohm
(2) 12.4 Ohm
(3) 6.8 Ohm
(4) 16 Ohm
Ans (2)
7. A 10𝛺 resistor is connected in parallel with a 15𝛺 resistor and the combination in series with a 12𝛺 resistor. The equivalent resistance of the circuit is :
(1) 37𝛺
(2) 18𝛺
(3) 27𝛺
(4) 4𝛺.
Ans (2)
8. Superposition theorem is essentially based on the concept of :
(1) Reciprocity
(2) Linearity
(3) Duality
(4) Non - linearity
Ans (2)
9. For the circuit shown below, voltage V1 will be-
(1) 2.64 V
(2) 3.64 V
(3) 6.0 V
(4) 9.1 V
Ans (3)
10. Power factor in an industry can be improved by :
(1) Transformers
(2) Capacitors
(3) Inductors
(4) Stabilizers
Ans (2)