WorksheetsQuiz 1 MEC522 October 2021
Total questions: 20
Worksheet time: 10mins
In an open loop control system ...... [CO1/PO1]
Only system parameters have effect on the control output
Output is independent of control input
Output is dependent on control input
None of the above
For open control system which of the following statements is incorrect ? [CO1:PO1]
Errors are caused by disturbances
Less expensive
Recalibration is not required for maintaining the required quality of the output
Construction is simple and maintenance easy
In closed loop control system, with positive value of feedback gain the overall gain of the system will ............... [CO1:PO1]
decrease
increase
be unaffected
any of the above
___has tendency to oscillate. [CO1:PO1]
Open loop system
Closed loop system
Both (a) and (b)
Neither (a) nor (b)
A car is moving at a constant speed of 50 km/h, which of the following is the feedback element for the driver ? [CO1:PO1]
Clutch
Eyes
Needle of the speedometer
steering wheel
The initial response when tune output is not equal to input is called ....... [CO1:PO1]
Transient response
Error response
Dynamic response
Either of the above
By which of the following the control action is determined when a man walks along a path ? [CO1:PO1]
Brain
Hands
Legs
Eyes
Which of the following should be done to make an unstable system stable ? [CO1:PO1]
The number of zeros to the loop transfer function should be increased
The number of poles to the loop transfer function should be increased
The gain of the system should be increased
The gain of the system should be decreased
Zero initial condition for a system means .................. [CO1:PO1]
input reference signal is zero
zero stored energy
the initial movement of moving parts
system is at rest and no energy is stored in any of its components
Transfer function of a system is used to calculate which of the following ? [CO1:PO1]
The order of the system
The time constant
The output for any given input
The steady state gain
A controller, essentially, is a .................. [CO1:PO1]
clipper
comparator
amplifier
sensor
The on-off controller is a _____ system. [CO1:PO1]
digital
linear
non-linear
discontinuous
A signal other than the reference input that tends to affect the value of controlled variable is known as(a) disturbance ..................... [CO1:PO1]
command
control element
reference input
disturbance
The transfer function is applicable to which of the following ? [CO1:PO1]
Non-linear systems
Linear systems
Linear and time-variant systems
Linear and time-in variant systems
The term backlash is associated with ........... [CO1:PO1]
servomotors
induction relays
gear trains
any of the above
The output of the feedback control must be a function of input and feedback signal. [CO1:PO1]
True
False
Does feedback can always reduce the effects of noise and disturbance on system performance? [CO1:PO1]
true
false
Transfer function of a control system is depend on nature of inputs. [CO1:PO1]
False
True
Error detector and control element are the major components for controller? [CO1:PO1]
True
False
A "Pick and Place Robot" is: Any robot with a gripper for an end effector. [CO1:PO1]
True
False
