Measurement and Instrumentation PMMC type instruments normally use Air friction damping Fluid friction damping Eddy current damping None of these Air friction damping Fluid friction damping Eddy current damping None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pointer of an indicating instrument is generally made of _______ Silver Copper Aluminium Soft steel Silver Copper Aluminium Soft steel ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is 11. 100. 110. 10. 11. 100. 110. 10. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of an ammeter should be Infinity High Medium Very small Infinity High Medium Very small 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 false. 1 is true but 2 is false. Both 1 and 2 are true. 1 is false but 2 is true. Both 1 and 2 are false. 1 is true but 2 is false. Both 1 and 2 are true. 1 is false but 2 is true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? It consist of two coils mounted at right angles to each other. Both B and C. The restoring torque is provided by a controlling torque. The deflection is proportional to phase angle between field coil and crossed coil. It consist of two coils mounted at right angles to each other. Both B and C. The restoring torque is provided by a controlling torque. The deflection is proportional to phase angle between field coil and crossed coil. ANSWER DOWNLOAD EXAMIANS APP
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