Measurement and Instrumentation What is the approximate input impedance of a CRO? 0 10 MΩ 100 MΩ 1 MΩ 0 10 MΩ 100 MΩ 1 MΩ 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. 1 is false but 2 is true. 1 is true but 2 is false. Both 1 and 2 are false. Both 1 and 2 are true. 1 is false but 2 is true. 1 is true but 2 is false. Both 1 and 2 are false. Both 1 and 2 are true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 1000 rev/KWh. 960 rev/KWh. 3750 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 960 rev/KWh. 3750 rev/KWh. 3600 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Moving coil type Moving iron type Hot wire type Induction type Moving coil type Moving iron type Hot wire type Induction type ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The scale of hot wire ammeter is Linear. Non Linear. Absloute linear. Cramped. Linear. Non Linear. Absloute linear. Cramped. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 3% 1% 2% 4% 3% 1% 2% 4% ANSWER DOWNLOAD EXAMIANS APP
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