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Seat No
...
___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER–1/2 EXAMINATION – WINTER 2021
Subject Code:3110005
Subject Name:Basic Electrical Engineering
Time:10:30 AM TO 01:00 PM
Date:29/03/2022
Total Marks:70
Instructions:
1
...
2
...
3
...
4
...
Q
...
2
Q
...
3
(a) Calculate current, resistance and energy consumed by an oven rated 230V,
1KW when used for 20 hours
...
7/- per unit
...
What are the disadvantages of Low Power Factor?
03
(c) Summarize; Mathematical & Waveform representation of an alternating
sinusoidal quantity (voltage or current)
...
Write definition of
all
...
(b) Write classification of Electric Networks
...
Find the current passing
through 2 Ω (Fig
...
All resistances
are in Ω
...
C
...
Define time constant of it
...
State the value of form factor for Sinusoidal
waveform
...
Calculate,
the resonant frequency, the current at resonance, the voltage across the
inductor and capacitor at resonance, the Quality factor and the bandwidth
of the circuit
...
OR
(a) Define Q-factor of RLC series circuit
...
03
04
07
(c)
Q
...
Determine line current and power absorbed
when the coils are 1
...
Delta connected across 400V,
3-phase supply
...
(b) Mention Merits and Demerits of Induction Motor
...
07
OR
Q
...
(b) Explain the principle of operation of an Alternator
...
03
04
07
Q
...
(b) Mention basic guidelines (Safety Rules) regarding safe handling of
electricity
...
Label all the
parts
...
(b) Mention important points regarding Earthing of Electrical Installation
...
What precautions to
be taken for Lead Acid Batteries?
03
04
Q