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Electronic Mechanic Practice Test: AC & DC measuring Instruments
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Electronic Mechanic Practice Test: AC & DC measuring Instruments
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25 Questions

1. Which bearing is supporting the shaft of moving coil assembly in a PMMC instrument?
2. Which meter uses a moving coil for measurement?
3. What is the name of the procedure carried out to ensure the trustworthy standards of the measuring instrument?
4. What is the purpose of damping torque in PMMC meter?
5. Which band of frequency is used for RADAR in frequency spectrum allotted by the International Telecommunication Union (ITU)?
6. Which control is used in repulsion type moving iron instrument to keep the pointer at zero position?
7. What is the advantage of using digital multimeter?
8. In which position, the moving coil meter is kept for measurements?
9. Which meter movement is not affected by stray magnetic fields?
10. Which band is used for UHF in International Telecommunication System?
11. Which torque is used in PMMC meter movement?
12. What is the maximum test voltage of the moving iron volt meter?
13. Which instrument used to measure resistance, capacitance and inductance?
14. In which analog meter the battery is provided?
15. How the sensitivity of voltmeter is determined?
16. Which function control in CRO, adjust the trace sharper?
17. In which arrangement the high value of resistor is connected to extend the range of voltmeter?
18. How the accuracy of amplitude and frequency measured by CRO is checked?
19. Which type of wave is generated in schmitt trigger circuit?
20. Which frame is used for winding the coil of PMMC meter?
21. Which parameter is used in the working of moving coil meter?
22. Which electrode controls brightness of the image on the screen of oscilloscope?
23. Which characteristics enable the deflection of pointer in the attraction type moving iron meter?
24. What is the full form of PMMC meter?
25. What is the name of the symbol marked ‘X’ in the panel meter?

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