Recent questions tagged instrument

1 answer 6 views

Write any four advantages of instrument transformer.

asked Sep 6, 2018 by Shimroz123
1 answer 4 views

State the meaning of secondary instrument. Classify secondary instruments.

asked Sep 6, 2018 by Shimroz123
1 answer 4 views

State the function of former and control spring in PMMC instrument.

asked Sep 6, 2018 by Shimroz123
1 answer 8 views

‘PMMC instrument is not suitable to measure AC quantity’. State the reason.

asked Sep 6, 2018 by Shimroz123
1 answer 26 views

Describe spring control method of producing controlling torque in measuring instrument. Write any two properties required for spring material.

asked Sep 6, 2018 by Shimroz123
1 answer 7 views

Name the different torque and their function in measuring instrument.

asked Sep 6, 2018 by Shimroz123
1 answer 10 views

Give the classification of the errors used in measuring instrument & state the reason for their occurrence.

asked Sep 6, 2018 by Shimroz123
1 answer 11 views

Name the material used for :- (i) Moving coil (ii) Permanent magnet in PMMC instrument.

asked Sep 6, 2018 by Shimroz123
1 answer 3 views

State the meaning of absolute instrument and secondary instrument. 

asked Sep 6, 2018 by Shimroz123
1 answer 6 views

State the advantages of instrument transformer in using for extension of range of meters. 

asked Sep 6, 2018 by Shimroz123
1 answer 4 views

Explain magnetic effect employed in measuring instrument.

asked Sep 6, 2018 by Shimroz123
1 answer 5 views

State the function of controlling torque in electrical measuring instrument.

asked Sep 6, 2018 by Shimroz123
2 answers 161 views

Explain construction & working of attraction type M.I. instrument with neat diagram.

asked Sep 5, 2018 by Shimroz123
1 answer 11 views

Why energy meter is integrating type measuring instrument?

asked Sep 5, 2018 by Shimroz123
1 answer 9 views

Write any two advantages of MI type instrument.

asked Sep 5, 2018 by Shimroz123
1 answer 9 views

State working principle of PMMC instrument.

asked Sep 5, 2018 by Shimroz123
1 answer 43 views

Write difference between absolute & secondary instrument.

asked Sep 5, 2018 by Shimroz123
1 answer 8 views

Compare PMMC & MI instrument.

asked Sep 5, 2018 by Shimroz123
1 answer 14 views

A Pyrheliometer is an instrument to measure :  (A) temperature of solar photovoltaic cell  (B) intensity of direct solar radiation at normal incidence  (C) intensity of indirect solar radiation  (D) efficiency of a solar photovoltaic cell

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 26 views

In a PMMC instrument, the damping provided is :  (A) air damping (C) eddy current damping (B) fluid damping (D) magnetic damping using a magnet

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 65 views

The largest change of input quantity for which there is no output of instrument is called ______ A) Dead time B) Dead input C) Dead output D) Dead zone

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 17 views

A PMMC instrument has FSD of 100 μA and a coil resistance of 1 kΩ. To convert the instrument into an ammeter with full scale deflection of 100 mA, the required shunt resistance is (A) 1 Ω (B) 1.001 Ω (C) 0.5 Ω (D) 10 Ω

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 195 views
1 answer 19 views

Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type wattmeter (C) Moving-iron voltmeter (D) Moving-iron wattmeter

asked Apr 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 18 views

An instrument which detects electric current is known as?

asked Mar 25, 2018 in Basic concepts by Shimroz123
0 answers 25 views
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