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Chapter 5 VAPOUR-ACTUATED THERMOMETER MCQs

1. . Vapour actuated thermometer is used to measure:

(A) Temperature


(B) Density


(C) Pressure


(D) Displacement




2. . The vapour actuated thermometer is ______ filled with the liquid:

(A) Fully


(B) Totally


(C) Partially


(D) Completely




3. . In vapor actuated thermometer all the filling liquid is in the _______.

(A) Capillary


(B) Bulb


(C) Spring


(D) Dial and pointer




4. . In the vapour actuated thermometer the liquid expands when heated but its vapour pressure:

(A) Remains same


(B) Decrease


(C) Not changed


(D) Increases




5. . To overcome the ambient temperature effect of the vapour actuated thermometer a__________________ is used:

(A) Vapour drain system


(B) Dual-filled system


(C) Gas system


(D) Liquid system




6. . In vapor filled thermometer the only ________ filled with liquid and rest of volume with vapors:

(A) Capillary


(B) Spring


(C) Bulb


(D) Bourdon tube




7. . _______ is commonly used in liquid-expansion thermometers:

(A) Bourdon tube


(B) Spinning rotor gauge


(C) McLeod gauge


(D) Manometer




8. . At lower temperature change in vapor pressure is:

(A) Small


(B) Large


(C) Consistent


(D) Not effected




9. . The ____________ of a vapor pressure thermometer is a primary element?

(A) Pointer


(B) Bourdon tube


(C) Bulb


(D) Stem




10. . The ____________ of a vapor pressure thermometer is a secondary element?

(A) Pointer


(B) Bourdon tube


(C) Bulb


(D) Stem




11. . Vapor-filled thermometers can measure temperature from:

(A) 0°C to +315°C


(B) 185°C to +0°C


(C) 185°C to -315°C


(D) 185°C to +315°C




12. . The scale of the Vapour-filled thermometers is________.

(A) Round


(B) Linear


(C) Nonlinear


(D) Difficult




13. . The response of the Vapour-filled thermometers is faster than________ thermometer.

(A) Gas filled


(B) Liquid filled


(C) Mercury filled


(D) All these




14. . A unit increase in pressure for each unit of temperature rise in thermometer is called________ function.

(A) Square root


(B) Linear


(C) Nonlinear


(D) Exponential




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