List of top Electrical Engineering Questions asked in Tamil Nadu Common Entrance Test

Material used for solar cell is:
Spot welding is used for:
A slab of insulating material 130 cm\(^2\) in area and 1 cm thick is to be heated by dielectric heating. The power required is 380 W at 30 MHz. The material has a relative permittivity of 5 and a power factor of 0.05. Determine the necessary voltage.
Candela is the unit of:
Filament lamps operate normally at a power factor of:
Electric traction uses a power supply of:
The most important test to assert the proper functions of a surge diverter is:
Optimum number of stages for Cockcroft-Walton voltage multiplier circuit are:
In impulse testing of transformers, fault location is usually done by:
Time lag for breakdown is:
Surge impedance of a lossless transmission line is (if \( L \) = inductance/m and \( C \) = capacitance/m):
Which of the following defines the FIR filter for length \( M \), input \( x(n) \), and output \( y(n) \)?
With reference to the Fast Fourier Transform, if \( W_4^1 = W_x^2 \), then what is the value of \( x \)?
What is the width of the main lobe of the frequency response of a rectangular window of length \( M-1 \)?
Which of the following is true regarding the number of computations required to compute an \( N \)-point DFT?
If all the poles of \( H(z) \) are outside the unit circle, then the system is said to be:
What is the operation carried out by the 8051 instruction: ‘SETB 0D3’?

The output of the following 8051 Assembly code is: 

The 8051 program segment, which performs ‘software polling’ to check if the Timer-0 counting has completed, is:

On execution of the program segment: 

The output of the following program is: 

Assuming 3 MHz clock frequency, the execution time taken by the delay subroutine is:
Delay : MVI C, 9Ah
Loop : DCR C
JNZ Loop
RET
Which load torque will be used in regenerative braking?
The duty cycle value of a buck converter when the switching frequency is 250 kHz and the ON time is 2\( \mu s \) is:
When the MOSFET is in the ON state, the channel of the device behaves like: