CEPTAM STA Instrumentation Model Paper

drdo question paper for Instrumentation engineering pdf
drdo previous year question papers for Instrumentation engineering pdf
drdo syllabus for Instrumentation engineering pdf
drdo ceptam exam STA Instrumentation engineering syllabus
drdo ceptam syllabus for Instrumentation engineering

Instrument Engineering

(1) The closed loop pole of a stable second order system could be
(a) Complex conjugate with positive real parts
(b) Both real and positive
(c) Both real and negative
(d) One real positive and the other real negative
Ans- (b)

(2) Smoke density of the flue gas going out of the chimney is measured by a
(a) Thermal conductivity meter
(b) Photo Electric Cell
(c) Polarograph
(d) Charomatograph
Ans- (b)
(3) Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. It is a/an
(a) Conductor
(b) Solid semi-conductor
(c) liquid semi-conductor
(d) Insulator
Ans- (b)
(4) Flapper nozzle is used in a/an ___controller
(a) Electronic
(b) Hydraulic
(c) Pneumatic
(d) None of these
Ans- (c)
(5) Which of the following is the dynamic characteristics of an instrument?
(a) Fidelity
(b) Dead Zone
(c) Reproducibility
(d) Sensitivity
Ans- (a)
(6) Starting temperature of optical radiation pyrometer is ____ Centigrade.
(a) 400
(b) 1500
(c) 1200
(d) 800
Ans- (d)
(7) Psychrometer determines the
(a) Humidity of gases
(b) Water of crystallisation
(c) moisture content of solids
(d) hygroscopic nature of solids
Ans- (a)
(8) A mercury berometer measures the ___pressure
(a) gauge
(b) vaccume
(c) atmospheric
(d) absolute
Ans-(c)
(9) Measurement of sub-zero Celcius temperature in industry is done most commonly by
(a) gas thermometers
(b) thermocouples
(c) bi-metallic thermometers
(d) resistance thermometers
Ans-(d)
(10) The term analogous to the electrical current in a thermal system is the
(a) heat flow rate
(b) temperature difference
(c) heat content in the system
(d) none of these
Ans-(a)
(11) Which of the following judges the accuracy of an intrument?
(a) Drift
(b) Dead Zone
(c) Static error
(d) None of these
Ans- (c)
(12) Pressure of 0.01 psi(absolute) can be measured by ___ guage.
(a) Mcloid
(b) Pirani
(c) Ionisation
(d) None of these
Ans-(a)
(13) Which of the following is not a mechanical pressure sensing element?
(a) Diaphram
(b) Bellow
(c) U-tube
(d) Bourdon tube
Ans- (c)
(14) Compositional analysis of _____ is done using mass spectrometer.
(a) An alloy
(b) An Isotope
(c) Natural Gas
(d) A solid
Ans-(b)
(15) Zirconia probe is used for the continuous measurement of ___ flue gases going out of the furnace.
(a) Carbon monoxide in
(b) Oxygen in
(c) Carbon Dioxide in
(d) Temperature of
Ans-(b)