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Worksheets16EE5204 CONTROL SYSTEM QUIZ-1
Total questions: 20
Worksheet time: 20mins
The mechanism of control of body temperature is Non Feedback system.
True
False
Multiple signals as input can be used in which systems:
Feedback systems
Non Feedback systems
Feed Forward systems
None of the mentioned
In an open loop control system
Output is dependent on control input
Only system parameters have effect on the control output
Output is independent on control input
None of the above
A control system in which the control action is somehow dependent on the output is known as
Semi-closed loop system
Closed loop system
Open loop system
None of the above
A car is moving at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
Clutch
Eyes
Needle of speedometer
Steering wheel
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
In force-voltage analogy, velocity is analogous to
Current
Charge
Inductance
Capacitance
The viscous friction co-efficient, in force-voltage analogy, is analogous to
Charge
Resistance
Reciprocal of inductance
Reciprocal of conductance
Mass, in force-voltage analogy, is analogous to
Charge
Current
Inductance
Resistance
Spring constant in force-voltage analogy is analogous to
Capacitance
Current
Resistance
Reciprocal of capacitance
In translational mechanical system the opposing force offered by mass, dashpot, spring is proportional to
Load, Friction, Elasticity
Speed, Velocity, Length
Acceleration, Velocity, Displacement
Acceleration, Viscosity, Duration
Force acting on a mechanical body are governed by
Newtons first law of motion
Newtons second law of motion
Faradays law of electromagnetic induction
Mechanical law of motion
To model a rotational mechanical system the three basic elements required are denoted by
M, B, K
J, B, K
G, K, J
M, B, J
Transfer function of a system is defined as the ratio of output to input in
Z-transformer
Fourier transform
Laplace transform
All of these
How is an output represented in the control systems?
r(t)
x(t)
c(t)
y(t)
What is the use of encoder in servo motor?
It provides position and speed feedback
For low rotor inertia
For high speed
Direction of rotation of AC servo motor is changed by
By changing supply terminal
By changing current in rotor
By changing the phase difference between the two voltages
Rotor of AC servo motor is
Wire wound
Squirrel cage
Drag cup type
Both wire wound and drag cup
Applications of servo motors (check all true statements)
Robotics
Aeroplane
CNC machinery
Traction
A DC servo motor
Uses a tachometer for speed feedback
Uses a variable dc voltage for speed control
Can provide precise position control
All of the above
