1. An instrument which convert non electric quantity to electric signal is called
A. Indicator
B. Recorder C. Synchro D. Transducer
2. An instrument which records quantity as a function of time.
A. Synchro B. Indicator C. Recorder D. Transducer
3. X-Y recorder can not be used for measurement of which of the following?
A. BH curve of magnetic material B. Voltage-current waveforms for Transistors C. Speed time curves of electric motors D. None
4. In an analog Data aquisition system the correct sequence of block diagrm follows
A. Signal conditioner, Recorder, Transducer B. Transducer, Signal conditioner, Recorder C. Signal conditioner, Transducer, Recorder D.Transducer, Recorder, Signal conditioner
5. An instrument which measure fluid flow pressure
A. Venturi tube B. Bourdon tube C. Orifice plate D. Pitot tube
6. A transducer which converts angular position to electric signals
A. Resolver B. Synchro C. LVDT and RVDT D. Both A and B
7. Full form of LVDT
A. Linear Variable Differential Transformer B. Linear Variable Differential Transducer C. Linear velocity Distance Transducer D. Linear Variable Direct Transducer
8. A LVDT has ____ primary and _____ secondary windings
A. 1,1 B. 1,3 C. 2,1 D. 1,2
9. An LVDT is a/an ______ transducer.
A. Inductive B. Resistive C. Capacitive D. Magnetostriction
10. Output of an LVDT transducer is in the form of
A. Pulse train B. DC C. AC D. None
11. Torque/weight ratio of an instrument indicates
A. Selectivity
B. Fidelity C. Accuracy D. Sensitivity
12. Microphone is used at ____, and loud spaeker is used at___?
A. Transmitting end, Transmitting end B. Receiving end, Receiving end C. Transmitting end, Receiving end D. Receiving end, Transmitting end
13. In flow measurement, Tracer method is used to deduce ____flows
A. Very small B. Changeable low C. Very large D. Small
14. Which of the following pairs is an active transducer?
A. Solar cell- LVDT B. Thermocouple-Solar cell C. Thermistor-Solar cell D. Thrmocouple-Thermistor
15. Which one of the folowing act as an inverse transducer?
A. Bimetal strip B. Strain gauge C. Bimetallic strip D. Piezoelectric crystal
16. What is the full form of RTD?
A. Resistance Time Damper B. Resistance temprature Diode C. Ratio of Time Difference D. Resistance temprature detector
17. Which of the following can measure pressure directly?
A. Bourden tube B. Strain gauge C. Rotameter tube D. LVDT
18. The device that can transforms one form of enrgy to another form of energy is called
A. Transistor B. Transformer C. Transmitter D. Transducer
19. Transducer must have a _____ input Vs output characteristic response
A. Linear B. nonlinear C. Unit step D. Exponential
20. Seismic transducer may be used in______ mode.
A. In-active B. Static C. Displacement D. Low velocity
