11. What are the advantages of resistance potentiometer?
1. They are inexpensive.
2. They are useful for measurement of large amplitudes of displacement.
3. Their electrical efficiency is very high and they provide sufficient output to permit control operations without further amplification.
1. They are inexpensive.
2. They are useful for measurement of large amplitudes of displacement.
3. Their electrical efficiency is very high and they provide sufficient output to permit control operations without further amplification.
12. A DVM has a $$4\frac{1}{2}$$ digit display. The 1 volt range can read upto
13. Induction type single phase energy meters measure electric energy in
14. The lissajous pattern appearing on the screen of a CRT, when two sinusoidal voltages of equal frequencies, which are in phase with each other are applied to the CRO is
15. Which one of the following types of landline telemetry method has the advantage of simplicity and is free from noise, leakage and supply voltage variations?
16. When the voltage across a battery is measured using a D.C. potentiometer, the reading shows 1.08 V. But when the same voltage is measured using a Permanent Magnet Moving Coil (PMMC) voltmeter, the voltmeter reading shows 0.99 V. If the resistance of the voltmeter is 1100 Ω, the internal resistance of the battery, in Ω, is
17. A 0-25 A ammeter has a guaranteed accuracy of 1% of full scale reading. The current measured by this instrument is 10 A. The limiting error in % is,
18. Semiconductor strain gauges are usually made of
19. Which one of the following statements is not correct?
20. A capacitance transducer uses two quartz diaphragms of area 750 mm2 separated by a distance 3.5 mm. The capacitance is 370 pF. When a pressure of 900 kN/m2 is applied, the deflection is 0.6 mm. The capacitance at this pressure would be:
Read More Section(Measurement and Instrumentation)
Each Section contains maximum 100 MCQs question on Measurement and Instrumentation. To get more questions visit other sections.