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Jugar Test
1. 
The human system is
A.
a single variable feedback control system
B.
a multivariable feedback control system
C.
an open loop control system
2. 
Transfer function is defined for
A.
linear and time variant system
B.
nonlinear and time variant system
C.
linear and time invariant system
D.
nonlinear and time invariant system
3. 
Which one of the following is an example of open loop system?
A.
Windscreen wiper
B.
Household refrigerator
C.
Respiratory system of an animal
D.
Auto-pilot of an aircraft
4. 
Transfer function of a system is characterized by
A.
zero initial condition and dependence on input excitation
B.
zero initial condition and non-dependence on input excitation
C.
given initial condition and dependence on input excitation
D.
given initial condition and non-dependence on input excitation
5. 
The main drawback of a feedback system is
A.
inaccuracy
B.
insensitivity
C.
instability
D.
inefficiency
6. 
Which of the following is a closed loop system?
A.
Electric Switch
B.
Car starter
C.
System for controlling missiles
D.
DC Generator
7. 
If initial conditions in a system are zero, it means that the system is
A.
working with zero reference input
B.
working but does not store energy
C.
at rest but stores energy
D.
at rest and has no energy stored in any of its part
8. 
Find the characteristic equation of the system whose transfer function is shown below
A.
B.
C.
D.
9. 
The type and order of the closed loop transfer function given below is
A.
1,3
B.
0,2
C.
3,1
D.
2,1
10. 
What are the zeros of the given transfer function
A.
s = 2
B.
s = -2
C.
s = 0
D.
s = 5
11. 
What are the poles of the transfer function given below
A.
s = 0, -3,2
B.
s = 0,3, -4
C.
s = -2,3,0
D.
s = 3, 2, 0