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Measurement and Instrumentation

Measurement and Instrumentation
An average reading digital multimeter reads 10 V when fed a triangular wave, symmetric about the axis. For the same input, an rms reading meter will read

  10√3.
 10.
 20.
 20√3.

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Measurement and Instrumentation
When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is

 54.2.
 20.
 31.4.
 25.4.

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Measurement and Instrumentation
The quantity 1/√(∈0 × μ0) in SI units has the

 both ‘a’ and ‘b’.
 dimension LT-1.
 none of these.
 speed of light.

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Measurement and Instrumentation
Null type recorders are

 bridge recorders.
 any one of the above.
 potentiometric recorders.
 LVDT recorders.

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Measurement and Instrumentation
Which of the quantity consists of SI unit as Candela?

 Impulse
 Force
 Luminous intensity
 Velocity

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Measurement and Instrumentation
When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is

Short-circuited
Faulty
None of these
All right

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