Which of the following is an essential part of a motor meter ?

Related Mcqs:

1. An induction meter can handle current up to_____________?

   A. 10 A B. 30 A C. 60 A D. 100 A...

2. The household energy meter is_______________?

   A. an indicating instrument B. a recording instrument C. an integrating instrument D. none of the above...

3. The multiplier and the meter coil in a voltmeter are in________________?

   A. series B. parallel C. series-parallel D. none of the above...

4. A power factor meter has________________?

   A. one current circuit and two pressure circuits B. one current circuit and one pressure circuit C. two current circuits and one pres¬sure circuit D. none of the above...

5. In a Weston frequency meter, the magnetic axes of the two fixed coils are__________________?

   A. parallel B. perpendicular C. inclined at 60° D. inclined at 120°...

6. In a single phase power factor meter the phase difference between the currents in the two pressure coils is___________________?

   A. exactly 0° B. approximately 0° C. exactly 90° D. approximately 90°...

7. In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of___________?

   A. 0.1 Hz B. 0.25 Hz C. 0.5 Hz D. 1.5 Hz...

8. A Weston frequency meter is_____________?

   A. moving coil instrument B. moving iron instrument C. dynamometer instrument D. none of the above...

9. In an energy meter braking torque is produced to________________?

   A. safe guard it against creep B. brake the instrument C. bring energy meter to stand still D. maintain steady speed and equal to driving torque...

10. Various adjustments in an energy meter include_______________?

    A. light load or friction B. lag and creep C. overload and voltage compensation D. temperature compensation E. all of the above...