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control system

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

the deviation of the output of control system from desired response during steady state is called

a)

steady state error

b)

transient error

2.

Transfer Function is Ratio of

a)

Laplace transform of input to the Laplace transform of output with all initial condition is zero

b)

Laplace transform of output to the Laplace transform of Input with all initial condition is zero

c)

Laplace transform of output to the Laplace transform of Input

d)

all of the above

3.

In positive Feedback system,

a)

feedback signal in phase with Input signal

b)

feedback signal out of phase with input signal

c)

no relation between feedback signal and input signal

d)

none of the above

4.

A system which is not having Feedback is called

a)

closed loop system

b)

open loop system

c)

both

d)

non of the above

5.
What is the algebraic sum of the reference input and feedback?
a)
Error Signal
b)
Error Detector
c)
Controlled system
d)
Controlled output
6.
Maintaining body temperature is an example of a:
a)
negative feedback loop
b)
positive feedback loop
7.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
8.
A group of parts that work together to achieve a goal. 
a)
matter 
b)
system 
c)
conduction 
d)
solar energy 
9.
This is information used to control the process or output of a system. 
a)
subsystems 
b)
input 
c)
feedback 
d)
banana 
10.

How do u relate the DC motor speed?

a)

DC motor speed is directly proportional to armature voltage and inversely proportional to flux in field winding.

b)

DC motor speed is directly inversely proportional to armature voltage and inversely proportional to flux in field winding.

c)

DC motor speed is directly proportional to armature voltage and flux in field winding.

d)

DC motor speed is directly proportional to armature voltage and proportional to flux in field winding.

11.

DC motor converts

a)

Electrical Energy into chemical energy

b)

Electrical energy to Mechanical Energy

c)

Mechanical Energy to Electrical Energy

d)

None of the above

12.

How do u obtain desired speed of an armature controlled DC motor ?

a)

by varying armature current

b)

by varying the armature voltage

c)

by varying emf

d)

by varying transformer voltage

13.

In DC motor, back

emf is directly proportional to speed ( say true/false )

a)

TRUE

b)

FALSE

14.

In which method ,

speed control will be done by changing the resistance?

a)

Flux control method

b)

Armature control method

c)

Armature Voltage control method

15.

In flux control

method, variable resistance is connected series with ____ winding

a)

Shunt filed winding

b)

Armature winding

c)

Both armature and field winding

16.

What does the Thumb indicates?

a)

current direction

b)

motion of conductor

c)

direction of Field flux

17.

what is Translational Mechanical system?

a)

Linear Motion

b)

non linear motion

c)

Both

d)

None of the above

18.

What is Rotational mechanical system?

a)

Linear Motion

b)

Rotational motion (Motion about an axis)

c)

Both

d)

None of the above

19.
A control system is also known as a...
a)
Closed Loop System
b)
Open Loop System
c)
Open Sensor System
d)
Closed Sensor System
20.

Ohms law applicable at

a)

Constant Voltage

b)

constant Temperature

c)

constant Current

d)

Non of the above