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

Related Mcqs:

1. 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

2. To measure radio frequency, the suitable frequency meter is_______________?

   A. Weston frequency meter
   B. reed vibrator frequency meter
   C. heterodoxy frequency meter
   D. electrical resonance frequency meter

3. 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°

4. A Weston frequency meter is_____________?

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

5. 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°

6. An induction meter can handle current up to_____________?

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

7. The household energy meter is_______________?

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

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

   A. An operating torque system
   B. A braking device
   C. Revolution registering device
   D. All of the above

9. The adjustment of position of shading bands, in an energy meter is done to provide______________?

   A. friction compensation
   B. creep compensation
   C. braking torque
   D. none of the above

10. Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to_____________?

    A. improve its ventilation
    B. eliminate creeping at no load
    C. increase its deflecting torque
    D. increase its braking torque