Measurement and Instrumentation How many fundamental units are there ? 7 8 4 6 7 8 4 6 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The spring material used in a spring control device should have the following property. All of the listed here Should have low specific resistance Should non magnetic Most be of low temperature co-efficient All of the listed here Should have low specific resistance Should non magnetic Most be of low temperature co-efficient ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit. Both 1 and 2 are true. 1 is true but 2 is false. 1 is false but 2 is true. Both 1 and 2 are false. Both 1 and 2 are true. 1 is true but 2 is false. 1 is false but 2 is true. Both 1 and 2 are false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is 0.01V 0.05V 0.25V 0.01V 0.01V 0.05V 0.25V 0.01V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 260 V. 250 V. 252 V. 248 V. 260 V. 250 V. 252 V. 248 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? Both B and C. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. ANSWER DOWNLOAD EXAMIANS APP
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