Questions on the basic operation of fluid thermometers, bimetallic thermometers, thermocouples, and resistance temperature detectors (RTD's).
A. The number of fast-moving molecules in a substance
B. The degree, or intensity, of heat in a substance
C. The ratio of Celsius energy to Fahrenheit energy
D. The amount of Celsius energy
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A. Most fluids contract when they're heated and expand when they're cooled.
B. Any fluid that's sealed in glass will give off heat.
C. Most fluids expand when they're heated, and contract when they're cooled.
D. Most fluids change color when they're heated.
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A. The bimetallic element expands and rotates.
B. The rod produces a small voltage.
C. The rod turns and moves a pointer.
D. The scale moves.
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A. The wires contract.
B. The wires start to rotate.
C. The wires generate a small voltage.
D. The wires separate.
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A. Resistance
B. Temperature
C. Capacitance
D. Turbidity
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A. Fahrenheit and Celsius
B. Fahrenheit and inches of mercury
C. Celsius and millimeters of mercury
D. Celsius and PSIA
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A. Most fluids contract when they're heated and expand when they're cooled.
B. Fluids change resistance when temperature changes.
C. Most fluids expand when they're heated and contract when they're cooled.
D. Fluids are not affected by changes in temperature.
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A. Thermoelectric device
B. Pressure transmitting device
C. Metallic diaphragm device
D. Resistance pressure device
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A. The resistance of the RTD changes.
B. The circuit detects a change in the current flow.
C. The wire in the RTD contracts.
D. The circuit increases voltage to the RTD.
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