List of practice Questions

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

The output of the following 8051 Assembly code is: 

What is the operation carried out by the 8051 instruction: ‘SETB 0D3’?
If all the poles of \( H(z) \) are outside the unit circle, then the system is said to be:
Which of the following is true regarding the number of computations required to compute an \( N \)-point DFT?
Which of the following justifies the linearity property of the \( z \)-transform? \( x(n) \leftrightarrow X(z) \).
What is the width of the main lobe of the frequency response of a rectangular window of length \( M-1 \)?
Which of the following defines the FIR filter for length \( M \), input \( x(n) \), and output \( y(n) \)?
Surge impedance of a lossless transmission line is (if \( L \) = inductance/m and \( C \) = capacitance/m):
Time lag for breakdown is:
In impulse testing of transformers, fault location is usually done by:
The breakdown strength of air for small gaps (1 mm) under uniform field condition and standard atmospheric conditions will be:
Optimum number of stages for Cockcroft-Walton voltage multiplier circuit are:
The most important test to assert the proper functions of a surge diverter is:
An R-C voltage divider has an HV arm capacitance, \( C_1 = 600 \) pF, resistance \( R = 400 \) \( \Omega \), and equivalent ground capacitance \( C_g = 240 \) pF. The effective time constant of the divider in nanoseconds is:
Electric traction uses a power supply of:
Filament lamps operate normally at a power factor of:
Candela is the unit of:
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.
Spot welding is used for:
Material used for solar cell is:
Which of the following invokes a function getReg(I)?
The identification of common sub-expression and replacement of run-time computations by compile-time computation is:
Identify the incorrect statement regarding the use of generics and parameterized types in Java?
What is the if-then form of the following conditional statement? "It is time for dinner if it is 6 pm."