Measurement and Instrumentation PMMC Instrument can be used for AC work only DC work only None of the listed here Both AC and DC AC work only DC work only None of the listed here Both AC and DC ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is a vector quantity? Relative permeability. Magnetic potential. Magnetic field intensity. Flux density. Relative permeability. Magnetic potential. Magnetic field intensity. Flux density. 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 The pressure coil of a wattmeter should be connected on the supply side of the current coil when Supply voltage is low Load impedance is low Load impedance is high None of these Supply voltage is low Load impedance is low Load impedance is high None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.84 1 0.73 0.65 0.84 1 0.73 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Systematic errors are instrument errors. All of these environmental errors. observational errors. instrument errors. All of these environmental errors. observational errors. ANSWER DOWNLOAD EXAMIANS APP
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