Q. If low pressure of 10¯⁶ mm of Hg is required to be measured, we should use

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Q. A transducer must have

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Q. If two time varying signals of equal magnitude and zero phase displacement are applied to X and Y plates respectively; of CRO, the display will be

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Q. Wagner earthing device is used to eliminate error due to

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Q. RTD is generally suitable for temperature up to

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Q. To measure an emf by dc potentiometer it is necessary to standardise the potentiometer with the help of a standard cell.

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Q. Which of the following transformers has low primary current?

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Q. The phenomenon of creep occurs in

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Q. A D' Arsonval galvanometer is a

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Q. Schering bridge is used to measure

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Q. Gauge factor of a strain gauge is

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Q. Assertion (A): Capacitance effect can be used to measure thickness of sheets, displacement and pressure.

Reason (R): Capacitance between two plates depends on the area of plates, distance between plates and permittivity of medium.

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Q. The total insulation resistance consists of insulation volume resistance and surface leakage resistance.

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Q. Assertion (A): Energy meters use induction principle.

Reason (R): Induction wattmeter is less accurate than a dynamometer wattmeter.

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Q. A dynamometer wattmeter can be used for

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Q. The operating voltage of a megger is about

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Q. An ohmmeter is a

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Q. Loading effect is primarily caused by instruments having

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Q. Capacitive transducer is superior to inductive type for measurement of capacitance because of

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Q. Which of the following effects is used in measurement of magnetic flux?

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