Dive into the fundamentals of HVAC controls with this engaging trivia quiz! Test your knowledge on control systems, their mechanisms, and their impact on HVAC operations. Perfect for students and professionals looking to enhance their understanding of HVAC technology.
Direct acting
Reverse Acting
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Non self-regulating (astatic or integral system, I-systems)
Self-regulating (static or proportional systems, P-systems)
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Tn
Tv
Ks
Kd
Xh
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The setpoint can't be achieved if the maximum disturbance variable occurs
The control loop tends to oscillate
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One storage element
One control system
One slave controller
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Increases
Decreases
Doesn't change
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Description via step response
Description by the Ziegler-Nichols method
Description by the control variable response
Description via the frequency response (harmonic response)
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Manipulated variable step response
Disturbance variable step response
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Xp
Xh
Yh
Tv
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Electric resistance element
Water
Agitator
Thermometer
Tank Insulation
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Yes
No
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Has a steeper slope
Has a gentler slope
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Balancing Time, Delay Time, Time Constant
Time Constant, Balancing Time, Delay Time
Delay Time, Time Constant, Balancing Time
Delay Time, Balancing Time, Time Constant
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The control range of a control system
The controllability of a controlled system
The reaction time of a controlled system
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S
S=0.1...0.3
S>0.3
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Higher, longer
Higher, shorter
Lower, longer
Lower, shorter
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Closed Loop
Open Loop
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Powered controllers
Self-actuated controllers
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Less than 0
Greater than 0
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Two-position
Modulating
Non-modulating
Quasi-modulating
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Larger, smaller
Smaller, greater
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True
False
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As a hygrostat to switch the humidifier of a room humidity control system
As a pressostat to switch the compressor of a compressed air station
As a flow temperature low-limit controller in a floor heating system
As a temperature controller for a domestic hot water heater
As a frost protection thermostat in a ventilation system
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One-fourth
Half
Three-fourths
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Low
High
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Digital
Analog
Either
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Quiz Review Timeline (Updated): Sep 7, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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