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.
Open Loop
Closed Loop
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Closed Loop
Open Loop
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Powered controllers
Self-actuated controllers
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Manipulated variable step response
Disturbance variable step response
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Direct acting
Reverse Acting
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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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Low
High
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Has a steeper slope
Has a gentler slope
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S
S=0.1...0.3
S>0.3
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Larger, smaller
Smaller, greater
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One-fourth
Half
Three-fourths
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Increases
Decreases
Doesn't change
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Electric resistance element
Water
Agitator
Thermometer
Tank Insulation
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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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Less than 0
Greater than 0
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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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True
False
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Tn
Tv
Ks
Kd
Xh
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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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Yes
No
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One storage element
One control system
One slave controller
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Higher, longer
Higher, shorter
Lower, longer
Lower, shorter
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Digital
Analog
Either
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Xp
Xh
Yh
Tv
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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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Two-position
Modulating
Non-modulating
Quasi-modulating
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