Volumetric expansion is the working principle of the ______________ thermometers?

Related Mcqs:

1. Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change ?

   A. Water
   B. Mercury
   C. Methyl alcohol
   D. Carbon-tetrachloride

2. Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion ?

   A. Nickel
   B. Brass
   C. Chromel
   D. Invar

3. Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability ?

   A. Mercury in glass thermometer
   B. Alcohol in glass thermometer
   C. Fused metal (Na or K) in steel thermometer
   D. Nitrogen in steel thermometer

4. Which of the following thermometers is not suitable for distant reading upto 60 metres ?

   A. Vapor pressure thermometer
   B. Mercury in glass thermometer
   C. Constant volume gas thermometer
   D. Resistance thermometer

5. The ____________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature ?

   A. Pressure
   B. Volume
   C. Viscosity
   D. All A., B. and C.

6. Working principle of mercury in glass thermometer is based on the ______________ of mercury with increase in temperature?

   A. Increase of pressure
   B. Increase of thermal conductivity
   C. Volumetric expansion
   D. Differential linear expansion

7. Change of angle of refraction with composition comprises the working principle of a___________________?

   A. Polarimeter
   B. Polarograph
   C. Spectrometer
   D. Refractometer

8. Working principle of disappearing filament type optical pyrometer is based on the ________________?

   A. Wien’s law
   B. Seebeck effect
   C. Kirchoff’s law
   D. Peltier effect

9. Thermal conductivity measurement com-prises the working principle of a_________________?

   A. CO2 analyser
   B. Polarimeter
   C. Spectrometer
   D. Chromatograph

10. Working principle of radiation pyrometer is based on the __________________?

    A. Wien’s law
    B. Kirchoff’s law
    C. Stefan Boltzmann law
    D. Seebeck effect