Question 1

One advantage of the turbine-type sensor is that the turbine blade offers no resistance to the flow of the liquid.

Accepted Answer

The turbine blade in a turbine-type sensor does indeed offer some resistance to the flow of the liquid, as it needs to interact with the fluid flow to generate a measurement.

Question 2

To detect the amount of liquid or air flow, a ____ must be used.&#10;A) turbine&#10;B) pressure switch&#10;C) transducer&#10;D) flow switch

Accepted Answer

transducer&#10;

Question 3

____ flow sensors operate on the principle that when a moving liquid strikes an object, a swirling current is created.&#10;A) Vortex&#10;B) Orifice plate&#10;C) Liquid&#10;D) Air

Accepted Answer

Vortex flow sensors work based on the principle that when a moving fluid strikes an object, it creates a swirling flow pattern downstream of the object, known as vortices. This principle is utilized to measure the flow rate of the fluid.

Question 4

Vortex sensors insert a(n) ____________________ bar in the line to produce a vortex.

Accepted Answer

The answer of Vortex sensors insert a(n) ____________________ bar in...

Question 5

How are solid-state devices used to sense air flow?

Accepted Answer

The answer of How are solid-state devices used to sense...

Question 6

A float switch is used when a pump motor must be started and stopped according to changes in the water (or other liquid) level in a tank or sump.

Accepted Answer

A float switch is a device used to detect the level of liquid within a tank. The switch triggers a pump to start when the liquid level rises to a certain point and stops the pump when the liquid level falls below a preset level, ensuring automatic control of the pump based on the liquid level changes.

Question 7

The mercury bulb float switch does not depend on a float rod or chain to operate.

Accepted Answer

The mercury bulb float switch operates by the tilting of a mercury-filled bulb, which causes the mercury to make or break an electrical connection, thus it does not rely on a float rod or chain for its operation.

Question 8

The ____ switch appears as a rubber bulb connected to a conductor.&#10;A) microwave&#10;B) mercury bulb&#10;C) bubbler&#10;D) rod-operated

Accepted Answer

The mercury bulb switch is known for its design, which includes a rubber bulb connected to a conductor. This design allows the switch to open or close an electrical circuit through the movement of mercury within the bulb.

Question 9

The liquid level in a bubbler system is sensed by ____ switches.&#10;A) float&#10;B) microwave&#10;C) rod&#10;D) pressure

Accepted Answer

Bubbler systems measure liquid level based on the pressure required to force a gas through a tube submerged in the liquid. The pressure is directly related to the depth of the liquid, so pressure switches are used to sense the liquid level.

Question 10

A(n) ____________________ valve is used to adjust the maximum air flow in a bubbler system.

Accepted Answer

The answer of A(n) ____________________ valve is used to adjust...

Question 11

How is the operation of a float switch controlled?

Accepted Answer

The answer of How is the operation of a float...

Deck 5: Float Switches, Flow Switches and Sensors