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Measurement and Instrumentation

Measurement and Instrumentation
In a megger controlling torque is provided by

Coil
Spring
Gravity
Eddy current

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Measurement and Instrumentation
A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be

 3.53 V.
 5 V.
 4.54 V.
 4.38 V.

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Measurement and Instrumentation
Which devices used to measure the temperature of an object ?

 Odometer
 Poteintiometer
 Thermometers
 Galvanometer

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Measurement and Instrumentation
The thermocouple instruments do not have

High degree of measuring accuracy
Independence of ambient temperature
High sensitivity
Absence of frequency error

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Measurement and Instrumentation
The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A.

 5
 2
 1
 4

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Measurement and Instrumentation
To measure the flux, devices used are based on

Hall effect
Photo-voltaic effect
Piezo-electric effect
Voltaic effect

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MORE MCQ ON Measurement and Instrumentation

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