Friday 27 December 2013

Comprehensive Viva Questions On PDC


Comprehensive Viva Questions On PDC

1.       There are four commonly occurring non-sinusoidal waveforms
2.      The circuit obstructs the low frequencies while it allows high frequencies to reach output is called High Pass RC Circuit
3.      For high pass RC circuit the time constant is given by t=RC
4.      With an Integrator the initial conditions can be easily introduced in the circuit
5.      The equation obtained by equating denominator polynomial of a transfer function to zero, is called the Characteristic Equation
6.      The clippers are also called Slicers or Voltage Limiters
7.      The Voltage equivalence of temperature indicates dependence of diode current on temperature
8.     The positive series clipper can be obtained by changing the direction of diode in negative clipper circuits
9.      As transistor shows Non-Linear behavior it is used for clipping
10.  The electronic circuits which are used to generate non-sinusoidal waveforms are called Multi-Vibrators
11.   The Binary Multi-Vibrators is used for the performance of many digital operations such as counting and storing
12.  The Symmetrical Triggering uses only one trigger input to the input of any one transistor
13.  The exponential term in the expression of sweep speed indicates that the charging is Linear
14.  The linearity of the sweep voltage will improve if Sweep Speed is constant
15.   The interval between pulses must be less than the natural period of the sweep generator i.e, TP<T0




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