‘Dowpac’ is derivative of _____________

The resistance _________ with increase in temperature.

Which of the following devices is not used for pressure measurement?

Who invented the Bourdon tube?

Which of the following measures the pressure with change in electrical resistance?

Ion-specific sensors are the types of on-line sensors.

Antifoam probe is a type of off-line sensor.

If the two metals have different temperature coefficient then, they are useful in making _________

Which of the following is used to control the agitation speed?

Who gave the treatment of strain gauge measurements?

In which of the following valve a sliding disc is moved in or out of flow path?

Which of the following valve consists of a tapered plug?

Which of the following valve consists of a disc which rotates about a shaft in a housing?

What is the function of check valves?

Which of the following valve is the most widely used in the design of the fermenter?

The pinch valve consists of a sleeve closed by pinch bar.

Load cells are used for the measurement of pressure.

Which of the following is used as an electrolyte in the galvanic electrode?

Which of the following is not used in DO measurement?

Which of the following is not the type of paramagnetic gas analyzers?

Which of the following has a dumbbell shape?