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UPPCL AE 2019: Technical Quiz 8
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Question 1
A 400V, three phase, rated frequency balanced source is supplying power to a balanced three phase load carrying a line current of 5 A at an angle of 30 ° lagging. The readings of the two wattmeters W1 and W2 used for measuring the power drawn by the circuit, are respectively.
Question 2
An instrument is used to measure a quantity at different time instances, and the expected values of the quantity are to be the same; however, the measured values are different. A set of 5 measurements that were recorded at different time instances are 98,101,99,100 and 102. Find the precision of the third measurement.
Question 3
Statement (i) : A ‘strain gauge’ is an example of a ‘Transducer’ or an electromechanical transformer.
Statement (ii) :In the ‘strain gauge’, displacement is used to vary the resistance of a circuit component and the ‘strain’ is measured in terms of the change in the resistance.
Statement (ii) :In the ‘strain gauge’, displacement is used to vary the resistance of a circuit component and the ‘strain’ is measured in terms of the change in the resistance.
Question 4
Why mobile charger is bigger than normal plug?
Question 5
Voltage sags results due to problem in power:
Question 6
In mesh analysis circuit shown, a current source is located where mesh current has current source which is equal to the current source i.e. I2 = Is What will be an expression for current I1?
Question 7
The decimal value of signed binary number 11101000 expressed in 1’s complement is
Question 8
The decimal equivalent of binary number
1001,101 is
1001,101 is
Question 9
What is the condition of retrogressive winding in dc machines?
Question 10
In a pure resistor, if rms voltage is 100 V, current is 15 A and frequency is 80 Hz, then find the Peak voltage and current?
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ESE & GATE EEGeneralJan 19ESE & GATE EE
