Which of the following instruments is used to detect the level of a liquid in a tank?
A. Float switch
B. Pressure gauge
C. Thermistor
D. Tachometer
Answer:A
Which of the following instruments is used to detect the level of a liquid in a tank?
A. Float switch B. Pressure gauge C. Thermistor D. Tachometer
Explanation: A float switch is a device that is used to detect the level of a liquid in a tank. It consists of a float that is attached to a switch, which is activated when the level of the liquid reaches a certain point.