Question: Velocity error constant of a system is measured when the input to the system is unit ___________ function?

• 1. parabolic
• 2. ramp
• 3. impulse
• 4. step

Question: If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?

• 1. not necessarily stable
• 2. stable
• 3. unstable
• 4. always unstable

Question: Addition of zeros in transfer function causes which of the following ?

• 1. Lead-compensation
• 2. Lag-compensation
• 3. Lead-lag compensation
• 4. None of the above

Question: The phase lag produced by transportation relays_____________?

• 1. is independent of frequency
• 2. is inverseh’proportional to frequency
• 3. increases linearly with frequency
• 4. decreases linearly with frequency

Question: In pneumatic control systems the control valve used as final control element converts____________?

• 1. pressure signal to electric signal
• 2. pressure signal to position change
• 3. electric signal to pressure signal
• 4. position change to pressure signal

Question: The effect of error damping is to______________?

• 1. provide larger settling lime
• 2. delay the response
• 3. reduce steady state error
• 4. any of the above

Question: __________________can be extended to systems which are time-varying ?

• 1. Bode-Nyquist stability methods
• 2. Transfer functions
• 3. Root locus design
• 4. State model representatives

Question: Which of the following is an electromagnetically device ?

• 1. Induction relay
• 2. Thermocouple
• 3. LVDT
• 4. Any of the above

Question: With feed back ____________ reduces?

• 1. system stability
• 2. system gain
• 3. system stability and gain
• 4. none of the above

Question: The transfer function technique is considered as inadequate under which of the following conditions ?

• 1. Systems having complexities and non-linearities
• 2. Systems having stability problems
• 3. Systems having multiple input disturbances
• 4. All of the above