PE Control Systems Sample Questions and Solutions – Test 7

MCQ 31: Amplifier characterized by very high input impedance , very low output impedance and high gain is called:

1. subtractor
2. divider
3. integrator
4. operational amplifier

MCQ 32: Locus of constant closed loop magnitude and closed loop phase frequency response for unity feedback systems plotted on the open loop dB versus phase angle plane in:

1. p chart
2. Nichols chart
3. time series chart
4. u chart

MCQ 33: Mathematical equation where a fraction with n factors in its denominator is represented as the sum of simpler fractions is called:

1. differential fraction expansion
2. ordinary differential expansion
3. partial differential expansion
4. partial fraction expansion

MCQ 34: Law states that voltage is directly proportional to current in a circuit is called:

1. Ohm's Law
2. Newton's Law
3. Gauss's Law
4. Kirchhoff's Law

MCQ 35: Frequency at which phase frequency response plot equals to 180° is called:

1. gain frequency
2. gain margin frequency
3. damped frequency
4. critical frequency