Download Aptitude Crack
img not found img not found

Measurements and Instrumentation

Q1: A permanent magnet moving coil meter can be used as

A ac only

B dc only

C both ac and dc

D low frequency ac and dc

ANS:D - low frequency ac and dc

Yes @Rit, it can only be used for dc measurement as during the negative half cycle of ac direction of torque applied will be reversed and average value of the applied torque during positive and negative half will be zero, and there will be no deflection in the pointer.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.