www.McqFinder.in

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
ITI
Electrician
Electrician Set-2
AC circuits
12

AC circuits MCQ with Answers

12) Calculate the power factor of coil having resistance of 24 Ohm, draws the current of 5A, at 240V/ 50HZ AC supply.

0.8

0.6

0.5

0.3

Answer is:

0.5

AC circuits MCQ with Answers

For more MCQ's Click Here

Related AC circuits MCQ with Answers

13) Calculate the power factor of R.L.C circuit having resistance (R) = 15 Ohm, resultant reactance (X) = 20W connected across 240V /50Hz AC supply?

0.5

0.6

0.7

0.8

Answer is:

0.6

14) Calculate the value admittance (Y) of the RLC parallel circuit connected across 240volts/50Hz AC supply and 8 Amp. Current is passed through it ?

3.33 Mho

0.33 Mho

0.033 Mho

0.003 Mho

Answer is:

0.033 Mho

15) How the low power factor (P.F) can be improved in AC circuits?

By connecting resistors in series

By connecting capacitors in series

By connecting inductors in series

By connecting capacitors in parallel

Answer is:

By connecting capacitors in parallel

16) What is the purpose of phase sequence meter?

To control the speed of 3 phase motor

To protect motor against short circuit fault

To indicate the incorrect phase sequence of 3 phase

To ensure the correct phase sequence of 3 phase system

Answer is:

To ensure the correct phase sequence of 3 phase system

AC circuits MCQ with Answers

For more MCQ's Click Here