Quiz: Electrical Engineering 1 May 2021

Quiz: Electrical Engineering
Exam: DFCCIL
Topic: Network & Circuit Theory

Each question carries 1 mark.
Negative marking: 1/4 mark
Time: 10 Minute

Q1. When only current source is active in the circuit, find the current through the 10 Ω resistor.

(a) 0 A
(b) 1.66 A
(c) 0.66 A
(d) 1.33 A

Q2. Calculate the potential difference (in V) between point A and B

(a) 114
(b) 110
(c) 112
(d) 113

Q3. Which of the following expression explains the Kirchhoff’s current law?

Q4. KVL works on the principle of
(a) Law of conservation of charge.
(b) Law of conservation of energy.
(c) Both.
(d) None of the above.

Q5. The current in 3 kΩ resistor in Fig. given below by converting the current source into voltage source is

(a) 10 mA
(b) 12 mA
(c) 6 mA
(d) 5 mA

Q6. When the supply frequency is more than the resonant frequency in a parallel a.c.
circuit, then circuit is…….
(a) Resistive
(b) Capacitive
(c) Inductive
(d) none of the above

Q7. In a parallel resonance……….
(a) Circuit impedance is minimum
(b) Power factor is zero
(c) Line current is maximum
(d) Power factor is unity

Q8. When an AC power is applied to a circuit having reactive load, then the voltage is_______
(a) 90 degree out of phase with current
(b) 180 degree out of phase with the current
(c) In phase with the current
(d) 270 degree out of phase with the current

Q9.A circuit has an impedance of (1 – j 2) Ω. The susceptance of the circuit is …….
(a) 0.1 S
(b) 0.2 S
(c) 0.4 S
(d) None of these

Q10. In figure, the current supplied by battery immediately after switching on the circuit is

(a) 0 A
(b) 1 A
(c) 4 A
(d) 10 A

SOLUTIONS

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