UA Local 467 Section 19.1 Quizizz #2

A(n) ______ is a humidity sensor that consists of a polymer saturated with a salt compound.

• Bulk polymer sensor

• Sodium chloride sensor

• Magnesium Sensor

• Halide Sensor

A current-sensing relay is a device that surrounds a wire and detects the ______ due to electricity passing through the wire.

• Force field

• Pressure

• Voltage

• Electromagnetic field

The central processing unit (CPU) of a building automation system controller makes decisions based on the inputs info.

• True

• False

______ are used to hold information that is to be communicated on a network.

• Hardwired Points

• Combination Points

• Pseudopoints

• Locked Points

______ is a signal that is only off/on.

• Analog Input

• Linear

• Exponential

• Digital Input

Digital Inputs are generally more expensive than analog inputs.

• True

• False

With a positive temperature coefficient (PTC) sensor the resistance ______ when the temperature increases.

• Increases

• Decreases

• Stays the same

• Still stays the same

Please answer question below

• Long Wire Runs

• Short Wire Runs

• Low Capacitance Wiring

• High Voltage Wiring

______ is a resistor made of a material for which the electrical resistance is a known function of the temperature.

• Thermistor

• Lead Based Sensor

• Resistance Temperature Detector (RTD)

• Dry Contact

With a negative temperature coefficient (NTC) sensor the resistance ______ when the temperature increases.

• Increases

• Decreases

• Remains the same

• Fluctuates