Rajasthan Technical Education Second Year Paper 2016 – Tranducers & Telemetry
The active tranducer among the option is
(a) Resistive tranducer
(b) Capacitive transducer
(c) Piezoelectric transducer
(d) Strain gauge transducer
Linear variable differential transformer transducer is based on principle
(a) Kirchoff’s law
(b) Newton’s law
(c) Faraday’s second law
(d) Faraday’s first law
Liquid level measurement using capacitive transducer is based on
(a) Variable plate area variable dielectric
(b) Variable distance between plates
(c) Variable resistance
(d) None of these
Piezoelectric transducer can be used to measure
(a) Static force only
(b) Dynamic force only
(c) Static and dynamic force both
(d) None of these
The passive transducer among the following is
(a) Photo voltaic cell
(b) Thermocouple
(c) Photo electric
(d) Strain gauge
Photo electric current depends upon
(a) Light intensity
(b) Wave length
(c) Frequency
(d) All of these
Photo conductive tranducer is based on
(a) Length change
(b) Cross-section area change
(c) Shape change
(d) Resistivity change
Among the following tranducers which one has negative temperature coefficient ?
(a) Strain gauge
(b) Thermister
(c) RTD
(d) Potentiometer
Ouptut voltage in peizoelectric tranducer appears due to
(a) Static charges
(b) Displacement of charges
(c) Random motion of charges
(d) None of these
Which quantity of pulse varies in pulse pick up tranducer ?
(a) Pulse width
(b) Pulse amplitude
(c) Pulse frequency
(d) All of these
Loading effect is minimized by
(a) Low output impedance
(b) Low input impedance
(c) High input impedance
(d) High output impedance
Synchro transmitter receiver set is used to transmit
(a) Angular position
(b) Torque
(c) Torque and angular position
(d) None of these
If carrier frequency is changed according to signal amplitude then it is
(a) Amplitude modulation
(b) Phase modulation
(c) Pulse code modulation
(d) Frequency modulation
A R-L circuit will have time constant defined by
(a) LC
(b) L/R
(c) L/RC
(d) L/C
Leave a Reply