A current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading? 2.03 A. 5 A. 6.09 A. 4.06 A. TRUE ANSWER : ? YOUR ANSWER : ?
What are the SI units of mass, length and time respectively? g, m and s. kg, m and s. kg, cm and s. g, cm and s. TRUE ANSWER : ? YOUR ANSWER : ?
The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 1.5% ± 1% ± 2.5% ± 3.5% TRUE ANSWER : ? YOUR ANSWER : ?
When checked with an ohm meter an open resistor reads high but within tolerance. low but not zero. infinite. zero. TRUE ANSWER : ? YOUR ANSWER : ?
PMMC Instrument can be used for DC work only None of the listed here AC work only Both AC and DC TRUE ANSWER : ? YOUR ANSWER : ?
For the AC bridge circuit shown in figure at balance the value of Rd will be (Rc/Ra).Rb. (Rc/Rb).Ra. (Ra/Rc).Rb. (Rb/Rc).Ra. TRUE ANSWER : ? YOUR ANSWER : ?
In AC circuits, the connection of measuring instruments cause loading effect errors which may effect only the magnitude of the quantity being measured. only phase of the quantity being measured. both of above. magnitude, phase and waveform of the quantity being measured. TRUE ANSWER : ? YOUR ANSWER : ?
Which devices used to measure the temperature of an object ? Poteintiometer Galvanometer Thermometers Odometer TRUE ANSWER : ? YOUR ANSWER : ?
A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is 30° 120° 90° 0° TRUE ANSWER : ? YOUR ANSWER : ?
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. 10 mA. 100 mA. TRUE ANSWER : ? YOUR ANSWER : ?