Measurement and Instrumentation A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is 1.5% 2% 2.5% 1% 1.5% 2% 2.5% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 100 V. 200 V. 50 V. 25 V. 100 V. 200 V. 50 V. 25 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistor of 10kΩhms with 5% tolerance is connected in parallel with a 5kΩhms resistor of 10% tolerance. What is the tolerance limit for the parallel network? 6.67% 5% 8.33% 10% 6.67% 5% 8.33% 10% 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. 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. 1 is false but 2 is true. 1 is true but 2 is false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The repeat accuracy of an instrument can be judged from its Standard deviation of error Static error Linearity error Dynamic error Standard deviation of error Static error Linearity error Dynamic error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is a vector quantity? Magnetic field intensity. Magnetic potential. Flux density. Relative permeability. Magnetic field intensity. Magnetic potential. Flux density. Relative permeability. ANSWER DOWNLOAD EXAMIANS APP
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