Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the inductance of winding Reduce the tolerance Increase the thermal stability Double the power rating of the resistor Reduce the inductance of winding Reduce the tolerance Increase the thermal stability Double the power rating of the resistor ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For power measurement of three phase circuit by two wattmeter method, when the value of power factor is less than 0.5 lagging Both give the same readings One of the wattmeters will read zero One of the wattmeter connections will have to be reversed Pressure coil of the wattmeter will become ineffective. Both give the same readings One of the wattmeters will read zero One of the wattmeter connections will have to be reversed Pressure coil of the wattmeter will become ineffective. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be 0.5 mA. 1mA. 100 mA. 10 mA. 0.5 mA. 1mA. 100 mA. 10 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A potentiometer may be used for Calibration of ammeter Measurement of current All of the listed here Measurrment of resistance Calibration of ammeter Measurement of current All of the listed here Measurrment of resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is 2 kWh 4 kWh 3 kWh 1 kWh 2 kWh 4 kWh 3 kWh 1 kWh ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What are the SI units of mass, length and time respectively? kg, cm and s. g, m and s. kg, m and s. g, cm and s. kg, cm and s. g, m and s. kg, m and s. g, cm and s. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS