Thermometer: Build and function

Q. Mercury or alcohol is commonly used in the thermometers. The freezing point of mercury is ____ while that of alcohol is ____.

1. -130°C, -39°C
2. -39°C, -130°C
3. -139°C, -30°C
4. -30°C, -39°C

Q.

Mercury boils at 356 degrees celsius, however, mercury thermometers are made such that they can measure temperatures up to 500 degrees celsius. This is done by?

Q. Which liquid is used to measure temperature in thermometers?

1. Water
2. Alcohol
3. Mercury
4. Oil

Q. The units of temperature measurement are:

1. Ampere
2. Celcius
3. Fahrenheit
4. Kelvin

Q. Why are mercury and alchohol used in thermometers?

1. Because they are very cheap.
2. Because they are less sensitive to temperature variations.
3. Because they are highly sensitive to temperature variations.
4. Because they are easily available.