List of top Electrical Power And Energy Engineering Questions asked in CUET (PG)

A thyristor controlled reactor is used to get :

The Insulation Resistance of a 3 km long cable is \(200 \, \text{M}\Omega\). For length of \(15 \, \text{km}\), the Insulation Resistance will be :

Operation of an Op-Amp with Negative feedback : A. Error voltage becomes very small
B. Output stabilizes
C. Input signal applied
D. Feedback signal is generated Choose the correct answer from the options given below :

For frequency Response Analysis of an operational Amplifier : A. Identify dominant poles
B. Draw Bode magnitude plot
C. Apply gain-bandwidth product concept
D. Determine closed loop gain
E. Assess stability margin Choose the correct answer from the options given below :

Direct laying method of laying underground cables has the drawback of : A. High maintenance cost
B. Localisation of fault is difficult
C. Possibility of damage of cable sheath owing to undergoing chemical changes due to impurities present in soil
D. Risk of cable being damaged
E. Low maintenance cost Choose the correct answer from the options given below :

In load flow studies of a power system, a voltage control bus is specified by :

The maximum short circuit current occurs in case of :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : An ADC converts digital signal into Analog signals. Reason (R) : DAC performs the inverse operation of ADC. In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : A Zener diode is used for voltage regulation. Reason (R) : It maintains a nearly constant voltage in reverse breakdown region. In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Superposition theorem is applicable only to linear circuits. Reason (R) : The response in non-linear circuits is not directly proportional to excitation. In the light of the above statements, choose the most appropriate answer from the options given below :

Arrange the following statements :
A. Stator winding is energized with balanced three phase supply
B. Spatially displaced currents create phase shifted fluxes
C. Resultant magnetic field rotates at synchronous speed
D. Rotor conductor cuts the rotating flux
E. Electromagnetic torque is produced Choose the correct answer from the options given below :

Which of the element in the following is not bilateral ?

AC voltage regulators are widely used in :

In a Zener diode :

In a three phase, 4 pole 50 Hz synchronous machine, if the frequency, pole number and load torque will be halved. The motor speed will be :

In a purely capacitive circuit, if the supply frequency is reduced to \( \frac{1}{4} \), the current will :

Which of the following statement is not correct with respect to short circuit test on transformer ?

The power factor of a purely resistive circuit is :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : A synchronous motor always runs at synchronous speed. Reason (R) : Its rotor speed is locked with the stator rotating magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below :

The transfer impedances at a 2 port network remain constant when the position of excitation and response are interchanged if the network :
A. Is linear
B. Contains bilateral element
C. Has high impedance
D. Is resonant
E. Is non-linear Choose the correct answer from the options given below :

For a R-L-C series circuit under resonance :
A. Current in the circuit is in phase with the applied voltage
B. Voltage drop across capacitor \(C\) and inductor \(L\) are equal in magnitude
C. Voltage across the capacitor is equal in magnitude to the applied voltage
D. Current in the circuit is maximum Choose the correct answer from the options given below :

The efficiency of a power transformer is of the order of :