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ISRO EE Quiz 9
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Question 1
The value of Ra is ________kΩ if
Question 2
The V0 in given circuit is equal to
Question 3
Statement 1: Squirrel Cage Induction motor of low resistance gives high starting torque at low frequency.
Statement 2: V/f control gives large Torque to current ratio during start.
Question 4
A transformer with a 10:1 ratio and rated at 50 kVA, 2400/240 V, 50 Hz is used to step down the voltage of a distribution system. The low-tension voltage is to be kept constant at 240 V. If the transformer is fully loaded at 0.8 power factor (lag), the load impedance connected to low-tension side will be nearly
Question 5
In a series RLC circuit, if the value of inductance is doubled and capacitance is halved, then it will change the value of:
Question 6
A parallel plate capacitor of area A cm2 and separating distance ‘a’ cm is dipped in ethyl alcohol up to a depth of a/2. Given the dielectric constant 
of ethyl alcohol to be 25, the ratio of capacitance after dipping to that before dipping would be
of ethyl alcohol to be 25, the ratio of capacitance after dipping to that before dipping would be Question 7
Consider the following balanced line-to-neutral voltage with abc sequence:
The valuers of VD. V1 and V2 are respectively
Question 8
In a 275-kV transmission line with line constraints A = 0.85 ∠ 5° and B = 200 ∠ 75°, if the voltage profile at each end is to be maintained at 275 kV, the power at Unity Power Factor (UPE) will nearly
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ESE & GATE EEGeneralApr 24ESE & GATE EE
