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Q: Which of the following can be measured temperature without touching to object?
  • A. Infrared thermometer
  • B. Filled system thermometer
  • C. Mercury glass thermometer
  • D. Electric thermometer
Correct Answer: Option A - Infrared thermometer enables to measure temperature quickly, at a distance and without touching the object. They are so useful, easy to use even fun to use that they have become as common in kitchens as they have on factory floors. Infrared thermometer are often used to find over heated equipment and electrical circuits temperature but they have hundreds of other uses.
A. Infrared thermometer enables to measure temperature quickly, at a distance and without touching the object. They are so useful, easy to use even fun to use that they have become as common in kitchens as they have on factory floors. Infrared thermometer are often used to find over heated equipment and electrical circuits temperature but they have hundreds of other uses.

Explanations:

Infrared thermometer enables to measure temperature quickly, at a distance and without touching the object. They are so useful, easy to use even fun to use that they have become as common in kitchens as they have on factory floors. Infrared thermometer are often used to find over heated equipment and electrical circuits temperature but they have hundreds of other uses.