# Quiz: Electrical Engineering 08 Apr 2021

Quiz: Electrical Engineering
Exam: RVUNL-JE
Topic: Miscellaneous

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

Q1. At the maximum power transfer condition, the power transferred to the load is 50 W. What is the total power (in W) generated by the voltage source?
(a) 50 W
(b) 25 W
(c) 75 W
(d) 100 W

Q2. Determine the value of load resistance (in ohms) for a circuit, when the maximum power transferred from the source of 50 V to the load is 25 W.
(a) 25
(b) 50
(c) 35
(d) 40

Q3. Which of the following material is considered as a non-magnetic material?
(a) Ferromagnetic material
(b) Diamagnetic material
(c) Ferrimagnetic material
(d) Anti-ferrimagnetic material

Q4. Determine the current flowing through a coil, if the coil has 150 turns and produces mmf of 15 Amp-turns:
(a) 0.4 A
(b) 0.6 A
(c) 0.1 A
(d) 0.3 A

Q5. It is required to convert a galvanometer of current range 15 mA and voltage range 750 mV into an ammeter of range 2.5 A. What is the value of shunt resistance required?
(a) 0.3 Ω
(b) 1.5 Ω
(c) 3.4 Ω
(d) 0.5 Ω

Q6. A current is flowing toward north along a power line. The direction of magnetic field above it is (neglecting earth’s field) toward
(a) north
(b) east
(c) west
(d) south

Q7. A 50 KVA transformer has a core loss of 250 W and total loss of 400 W. Find the copper loss for maximum efficiency:
(a) 400 W
(b) 150 W
(c) 250 W
(d) 500 W

Q8. A 10 KVA auto transformer, turn ratio is 0.4. find the power transferred inductively:
(a) 10 KVA
(b) 4 KVA
(c) 0 KVA
(d) 6 KVA

Q9. Which one of the following is the exact expression for I_CEO (i.e., collector to Emitter
current with base open) in a junction transistor?
(a) α.I_CBO
(b) α/(1-α).I_CBO
(c) I_CBO/(1-α)
(d) (1-α) I_CBO

Q10. A parallel resonance……….
(a) circuit impedance is minimum
(b) power factor is zero
(c) line current is maximum
(d) power factor is unity

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