Related Questions

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.
A Copper
B Steel
C Aluminium
D Brass
Behave how a gentleman behaves. Here the underlined part(how a gentleman behaves) is a/an-
A noun clause
B adjectival clause
C adverbial clause
D coordinating clause
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
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is
A 12
B 36
C 54
D 68
The output of a thermocouple is:
A a capacitance
B a resistance
C a current
D a voltage
E None of the above
The thermocouple instrument will measure
A Current
B Voltage
C Flux
D None of the above
The thermocouple instruments do not have
A High sensitivity
B Absence of frequency error
C Independence of ambient temperature
D High degree of measuring accuracy
The time constant of a thermocouple is
A The time taken to attain the final temperature to be measured
B The time taken to attain 50% of the value of initial temperature difference
C The time taken to attain 63.2% of the value of initial temperature difference
D Determined by the time taken to reach 100°C from 0°C
When a bare thermocouple is covered by a protective sheath, the response becomes
A Faster and oscillatory
B Faster and non-oscillatory
C Slower and oscillatory
D Slower and non-oscillatory
Out of the following, the highest emf for a given temperature is generated by the __________ thermocouple.
A Chromel - alumel
B Iron - constantan
C Platinum - platinum + rhodium
D Copper-constantan

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