August
V63/T04033/EE/20150821
2015
Basic Electrical Engineering
Instructions:
Marks-80
Time: 3 Hrs
1. All questions are compulsory.
2. “Long Answer type Question (LAQ)” is a supply type
question of 15 marks which required a typical answer of about
60-80 lines in bout 32-40 minutes.
3. “Sort Answer type Question (SAQ)” is a supply type question
of 5 marks which required a typical answer of about 15-20 lines
in bout 08-10 minutes.
4. Figures to the right indicate marks allotted to the questions.
5. Assume suitable data if necessary
6. Use a nonprogrammable type of scientific calculator is
allowed
Marks
SECTION-A
Q.1 Find the current in all the branches of the network shown.
15
OR
Q.1 What is network technology? Give classification based on the
direction of current and presence or absence of source.
15
Q.2 Difference between AC vs DC current. What are the disadvantages
of D.C. compared to A.C.? Also give the properties of alternating
current.
OR
15
Q.2 Determine the periodic time for the following frequencies:
a. 2.5 Hz b. 100Hz and c. 40 kHz
15
Q.3 Explain three phase supply connection system. With sketch.
5
Q.4 Define power and energy in a capacitive circuit.
5
SECTION-B
Q.5 explain three phase transformer star and delta configuration with
figure
15
OR
Q.5 explain the construction of dc motor and its principal of operation
15
Q.6 Explain torque speed characteristic of A.C. servomotors and its
advantages
OR
15
Q.6 Give advantages, disadvantages and application of universal
motors.
15
Q.7 Explain the working principal of a three phase induction motor.
5
Q.8 State stator frequency or v/f of three phase induction motor.
5
Computer Generated Random Question Paper dated: 07-07-2015 10:09:26
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