ME8791 Mechatronics -IAT 1 MCQ

In an open loop control system

• Output is independent of control input

• Output is dependent on control input

• Only system parameters have effect on the control output

• None of the above

Which of the following is a closed-loop control system

• Auto-pilot for an aircraft

• Direct current generator

• Car starter

• Electric switch

A Controller, essentially is a

• Sensor

• Clipper

• Comparator

• Amplifier

LVDT is a

• Capacitive transducer

• Resistive transducer

• Inductive transducer

• none of them

Thermocouples are

• Active transducers

• Passive transducers

• Both A and B

• None of the above

A transducer is basically a device which converts

• Mechanical energy into electrical

• Energy or information from one form to another

• Mechanical Displacement into electrical

• None of these

A Hall's effect pickup can be used for measuring

• Pressure

• Magnetic flux

• Relative Humidity

• Current

What are the functions of Encoder ?

• Senses mechanical motion

• Provides information regarding position & velocity and direction

• Converts analog into digital information

• All of the above

The strain gauges should have low

• Gauge factor

• Resistance

• RTD

• All of these

Pyrometer is used to measure

• Strain

• Pressure

• Displacement

• Temperature