Quiz No:52 Instruments and measurements RRB , Coal India , PSC , Engineering diploma Level , PWD

1. Synchro is a—


2. Unit of deflection sensitivity of C .R .O. is—


3. An induction wattmeter measures—


4. In an ammeter the shunt resistance is usually ……… meter resistance.


5. …… damping method is common in moving coil instruments.


6. …… meter has the best accuracy.


7. The sensitivity inaccuracy of an instrument does not depend on—


8. The accuracy of a meter is determined by ……… deflection.


9. Weston cell is a—


10. A milli-ammeter can be used as—


11. Megger is operated by—


12. Torque weight ratio will be least in…… Instruments.


13. Control springs are made up of—


14. Megger is used to measure—


15. In electrical measuring instruments electrical energy is converted to—


16. The use of……… instruments is merely confined within laboratories as standardizing instruments.


17. ……… instruments are those which measure the total quantity of electricity delivered in a particular time.


18. Which of the following are integrating instru­ments?


19. Resistances can be measured with the help of-


20. An induction meter can handle current up to —


21. Induction type single phase energy meters measure electric energy in—


22. Which of the following meters are not used on D.C. circuit?


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


24. A potentiometer may be used for—


25. A household energy meter is —


26. The pointer of an indicating instrument should be-


27. The chemical effect of current is used in—


28. In majority of instruments damping is pro­vided by—


29. The multiplier and the meter coil in a volt­meter are in—