Which of the following instruments is used to measure the pressure of a gas?
A. Thermometer
B. Manometer
C. Hydrometer
D. Tachometer
Answer:B
Which of the following instruments is used to measure the pressure of a gas?
A. Thermometer B. Manometer C. Hydrometer D. Tachometer
Explanation: A manometer is a device used to measure the pressure of a gas. It consists of a U-shaped tube filled with a liquid and is used to compare the pressure of the gas to the pressure of the liquid.