List of top Questions asked in TANCET

AC machines should have proper _______ in order to limit the operating temperature.

The Impulse Response of an initially relaxed linear system is \( e^{-2t}u(t) \). To produce a response of \( te^{-2t}u(t) \), the input should be:
The steady-state error due to unit acceleration input for a type 2 system is:
A system has two zeros and four poles. Then two asymptotes in the root loci plane move towards infinity along:
Loop transfer function of a feedback system is: \[ G(s)H(s) = \frac{10}{s - 2} \] Assume the Nyquist contour in the clockwise direction. Then the Nyquist plot of \( G(s) \) encircles \(-1 + j0\):
For a single-phase full-wave uncontrolled rectifier with a purely \( R \) load, the form factor is:
A single-phase inverter has a square wave output voltage. The percentage of the fifth harmonic component in relation to the fundamental component is:
When the MOSFET is in the ON state, the channel of the device behaves like:
The duty cycle value of a buck converter when the switching frequency is 250 kHz and the ON time is 2\( \mu s \) is:
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 \( M-1 \)?
The resultant magnetic flux generated in the closed surface will be
H in the region \( 0 \leq l \leq a \) for an infinitely long co-axial transmission line is:

The direction of current flow in the circuit is such that the induced magnetic field produced by the induced current will oppose the original magnetic field. This is:

The electromagnetic wave propagates in free space with a speed of:

Four identical alternators each rated for 20 MVA, 11 kV having a sub-transient reactance of 16% are working in parallel. The short circuit level at the bus bars is:
Surge impedance of a lossless transmission line is (if \( L \) = inductance/m and \( C \) = capacitance/m):
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: