engineering recuitment GATE IN Test Series 2023-24 Mock Test Sensors and Industrial Instrumentation Measurement of Temperature
Following are the methods of measuring temperature:
A. By measuring the expansion of liquids like alcohol, pentane in capillary glass tubes.
B. By measuring the expansion of mercury in a capillary glass tube, radiation in pyrometers and production of emf in thermocouples.
C. By measuring the velocity of sound in gases and motion of electrons.
Which of the statements given above is/are correct? Select the code for the correct answer for the options given below :
1
B alone
2
A and B only
3
C alone
4
A, B and C