Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 4% ± 2.8% ± 3% ± 6% ± 4% ± 2.8% ± 3% ± 6% 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 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. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Standard resistor ia made from Manganin Nichrome Silver Platinum Manganin Nichrome Silver Platinum ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high precision. high accuracy. minimum effect on the current in the circuit. high sensitivity. high precision. high accuracy. minimum effect on the current in the circuit. high sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 2 mA. 3 mA. 4 mA. 1 mA. 2 mA. 3 mA. 4 mA. 1 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following is a variable displacement transducer? potentiometer tachometer synchros None of these potentiometer tachometer synchros None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS