An ohmmeter is a____________?

Related Mcqs:

1. When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is____________?

   A. short-circuited
   B. all right
   C. faulty

2. The use of _________ instruments is merely confined within laboratories as standardizing instruments?

   A. absolute
   B. indicating
   C. recording
   D. integrating
   E. none of the above

3. Which of the following meters are not used on D.C. circuits______________?

   A. Mercury motor meters
   B. Commutator motor meters
   C. Induction meters
   D. None of the above

4. In a portable instrument, the controlling torque is provided by_____________?

   A. spring
   B. gravity
   C. eddy currents
   D. all of the above

5. In order to achieve high accuracy, the slide wire of a potentiometer should be_______________?

   A. as long as possible
   B. as short as possible
   C. neither too small not too large
   D. very thick

6. In a low power factor wattmeter the pressure coil is connected_______________?

   A. to the supply side of the current coil
   B. to the load side of the current coil
   C. in any of the two meters at connection
   D. none of the above

7. To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken_______________?

   A. from a source which is not the same as the unknown voltage
   B. from a battery
   C. from the same source as the unknown voltage
   D. any of the above

8. The power factor of a single phase load can be calculated if the instruments available are_____________?

   A. one voltmeter and one ammeter
   B. one voltmeter, one ammeter and one wattmeter
   C. one voltmeter, one ammeter and one energy meter
   D. any of the above

9. 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

10. An instrument transformer is used to extend the range of______________?

    A. induction instrument
    B. electrostatic instrument
    C. moving coil instrument
    D. any of the above