Which of the following instruments is used to measure the temperature of an object without making contact?
A. Thermocouple
B. Pyrometer
C. Manometer
D. Hygrometer
Answer:B
Which of the following instruments is used to measure the temperature of an object without making contact?
A. Thermocouple B. Pyrometer C. Manometer D. Hygrometer
Explanation: A pyrometer is a non-contact device used to measure the temperature of an object by detecting its thermal radiation.