A. Nickel
B. Brass
C. Chromel
D. Invar
Related Mcqs:
- The deflection of the free end of the bimetallic strips in a bimetallic thermometer with temperature is nearly__________________?
A. Linear
B. Non-linear
C. Parabolic
D. Hyperbolic - Volumetric expansion is the working principle of the ______________ thermometers?
A. Mercury in glass
B. Constant volume gas
C. Vapor pressure
D. Bimetallic - 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 - 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 - Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity ?
A. CO2
B. N2
C. O2
D. CO - Thermal conductivity measurement com-prises the working principle of a_________________?
A. CO2 analyser
B. Polarimeter
C. Spectrometer
D. Chromatograph - 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 - A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?
A. Temperature measuring range (- 40°C to 450°C)
B. Accuracy (± 1% of span)
C. Speed of response
D. All a, b & c - 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. - To increase the speed of response of a pressure spring liquid or gas expansion thermometer, the clearance space between the thermometer bulb and the thermal well should not be filled with ________________?
A. Air
B. A metal powder or graphite
C. Oil
D. Mercury
