Rajasthan Technical Education Second Year Paper 2016 – Control System Components

Rajasthan Technical Education Second Year Paper 2016 – Control System Components

What potentiometer transducer measures ?
(a) Displacement
(b) Temperature
(c) Current
(d) Potential difference

Working of synchro is
(a) Current measurement
(b) Phase measurement
(c) Error detector
(d) Voltage measurement

What is the difference between DC servo motor & DC motor ?
(a) In working
(b) In construction
(c) In lubrication
(d) None of the above

How many phase supply is given to shaded pole induction motor ?
(a) Single phase
(b) Two phase
(c) Three phase
(d) DC Supply

Techogenerator measures
(a) Light intensity
(b) Vibration
(c) Linear speed
(d) Rotating speed

The medium in pneumatic system is
(a) Liquid
(b) Air
(c) Oil
(d) Helium

The control valve used as final control element in pneumatic control system converts.
(a) Pressure signal to position change
(b) Position change to pressure signal
(c) Pressure signal to electrical signal
(d) None of the above

The function of limit switch is
(a) To limit the value of a signal
(b) To convert mechanical motion to electrical signal
(c) To limit the motion of a drive
(d) To convert electrical signal into mechanical signal

Which of the following elements is not a final control element ?
(a) Electro-pneumatic convertor
(b) Potentiometer
(c) Servomotor
(d) Control valve

In pneumatic control system, the compressed air is not
(a) filtered
(b) lubricated
(c) regulated
(d) all of these

The pressure range of compressed air in pneumatic instrumentation system is
(a) 01 to 10 psi
(b) 01 to 05 psi
(c) 3 to 15 psi
(d) 4 to 20 psi

The drag cup rotor is used for AC servo motor to achieve the following
(a) Low friction
(b) Low torque
(c) High inertia
(d) High torque

The maximum torque occurs at which speed in AC servomotor
(a) Synchronous speed
(b) Low speed
(c) High speed
(d) Rated speed

Dampers are used for controlling the flow of
(a) Water flow
(b) Oil flow
(c) Air flow
(d) All the above

In excess of what parameter the thermal overload relay operates
(a) Time
(b) Current
(c) High voltage
(d) Lighting flow