1. Which of the following is possible in a token passing bus network ?

in-service expansion

unlimited number of stations

both (a) and (b)

unlimited distance

2. Due to which of the following reasons excessive bond width in control systems should be avoided ?

It leads to slow speed of response

It leads to low relative stability

Noise is proportional to band width

None of the above

3. Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ?

The system is relatively stable

The system is highly stable

The system is highly oscillatory

None of the above

4. Which of the following statements is correct for any closed loop system ?

All the co-efficients can have zero value

All the co-efficients are always non-zero

Only one of the static error co-efficients has a finite non-zero value

None of the above

5. The second derivative input signals modify which of the following ?

The time constant of the system

Damping of the system

The gain of the system

The time constant and suppress the oscillations

6. The transient response, with feedback system,

rises slowly

rises quickly

decays slowly

decays quickly

7. .On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?

Frequency

Loop gain

Forward gain

All of the above

8. The band width, in a feedback amplifier.

remains unaffected

decreases by the same amount as the gain increase

increases by the sane saaaajajt as the gain decrease

decreases by the same amount as the gain decrease

9. Transfer function of a system is used to calculate which of the following ?

The order of the system

The time constant

The output for any given input

The steady state gain

10. Zero initial condition for a system means

input reference signal is zero

zero stored energy

ne initial movement of moving parts

system is at rest and no energy is stored in any of its components