INSTRUMENTATION AND CONTROL SYSTEM QUIZ 1

Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output?

• Input signal

• Output signal

• Error signal

• Feedback signal

Consider the assertions related to block diagram. Which among them represents the precise condition?

A. Block diagram is used for analysis & design of control system.

B. Block diagram also provides the information regarding the physical construction of the system.

• A is true, B is false

• A is false, B is true

• Both A & B are true

• Both A & B are false

Which among the following measuring the speed of D.C. motor?

• Galvanometer

• Gauss meter

• Potentiometer

• Tachometer

Into which energy signal does the position sensor convert the measured position of servomotor in servomechanisms?

• Mechanical

• Electrical

• Thermal

• Light

The fundamental function of a tachometer is the conversion of angular _______ into voltage

• Displacement

• Acceleration

• Velocity

• Current

A control system in which the control action is somehow dependent on the output is known as

• Closed loop system

• Semi-closed loop system

• Open system

• None of the above

A signal other than the reference input that tends to affect the value of controlled variable is known as

• reference input

• control element

• command

• disturbance

Static error co-efficients are used as a measure of the effectiveness of closed loop systems for specified ________ input signal.

• acceleration

• velocity

• position

• all of the above

Which of the following is electromechanical device ?

• Induction relay

• Thermocouple

• LVDT

• None of the above

___ directly converts temperature into voltage.

• Thermocouple

• Potentiometer

• LVDT

• Gear train