Q.

The temperature inside a furnace is usually measured by

  • AOptical pyrometer
  • BMercury thermometer
  • CAlcohol thermometer
  • DAny of the above
Correct Answer : (A)

Optical pyrometer

Hints :

The temperature inside a furnace is usually measured by Optical pyrometer.

Previous

Which of the following is an advantage of heating by electricity?

Next

Which of the following heating method has maximum power factor?

Join The Discussion