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ইলেকট্রিক্যাল মেজারমেন্ট ইন্ড মেজেরিং ইন্সট্রুমেন্ট MCQ
6. The two pressure coils of a single phase power factor meter have---
The same dimensions and the same number of turns
The same dimension but different number of turns
The same number of turns but different dimensions
None of the above
7. একটি কোষের তড়িচ্চালক শক্তি 1.5V এবং অভ্যন্তরীণ রোধ 2Ω। এর প্রান্তদ্বয় 10Ω রোধের সাথে যুক্ত থাকলে কতটুকু তড়িৎ প্রবাহিত হবে?
0.225 A
0.125 A
40.8 A
8A
9. In a moving iron meter, the deflecting torque is proportional to--
Current through the coil
Square of the current through the coil
Sine of the measurand
Square root of the measurand
13. A direct current can be measured by-
AD.C. potentiometer directly
A D.C. potentiometer in conjunction with a standard resistance
A D.C. potentiometer in conjunction with a volt ratio box
None of the above
17. The spring material used in a spring control device should have the following property---
Should be non-magnetic
Most be of low temperature coefficient
Should have low specific resistance
All of the above