APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY Previous Years Question Paper & Answer

Course : B.Tech

Semester : S1 and S2

Year : 2018

Term : APRIL

Scheme : 2015 Full Time

Course Code : BE 101-03

Page:3





PDF Text (Beta):

17

20

a)
b)

a)
b)

a)
b)

a)

b)

D1803
circuit. |
PART ८ ⋅⋅
Answer any one full question from each module, each carries 10 marks.
Module V

What is active power and reactive power in an ac circuit? Explain.
For the circuit shown in figure determine:
i) The admittance in each branch ii) Total admittanceiii) Total current drawniv)

Circuit power factor v) Power absorbed.
0.03H

= [ ~ क |

Draw the resonance curve of series RLC circuit

A series RLC circuit has R= 5Q, L=0.2H and ೮5508, The applied voltage is
200V. Find the:

i) Resonant frequency ii) Q-factor iii) Band width

iv) Half power frequencies v) Current at resonance ഡു) Current at half power
points vii) Voltage across inductance at resonance.

Module VI
What are the advantages of three-phase system over single-phase system?
A balanced delta connected load consists of ($+j3) Q in each branch. The line
voltage is 30042 volts. Find:
i) Line and phase currents ii) Real and apparent power.
Show that power consumed by three identical single-phase loads connected in delta
is equal to three times the power consumed when the loads are connected in star.
In the two-wattmeter method of 3 phase power measurement, the power input to

load is 30kW at 0.397 lagging. Find the reading of each wattmeter.
OK

Page 3 of 3

(4)
(6)

(3)
(7)

(4)
(6)

(6)

(4)

Similar Question Papers