Which control system component is activated in order to change or maintain
environmental conditions?
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( )Sensor
(x)Controller ← Correct answer
( )Output
( )Controlled device
,In the DMZ architecture, there are ______________ firewalls.
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(x)two ← Correct answer
( )three
( )five
( )ten
Direct sunlight on an outside air temperature sensor will give the controller a false
sense of the actual ambient temperature when making decisions. For buildings
located in the northern hemisphere, the _____ side of the building is the best place to
locate the outside air temperature sensor.
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(x)North ← Correct answer
( )South
( )East
( )West
The value that the controller is aiming to achieve is called the:
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(x)Set point ← Correct answer
( )Control point
( )Offset
( )Controlling variable
,Which of the following are digital responses?
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( )Proportional
( )Proportional + Integral
( )Proportional + Integral + Derivative
( )All of the above
(x)None of the above ← Correct answer
Name the instrument used for measuring the electrical potential difference between
two points in an electric circuit.
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( )Psychrometer
( )Power Factor Meter
( )Ohmmeter
(x)Voltmeter ← Correct answer
An oxygen reading gauge is essentially an oxygen analyzer intended for use in
measuring the residual oxygen remaining in the flue gases from any combustion
process. Which of the following options describes the correct way to measure the
combustion process?
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( )The probe should be waved across the air intake grille for a period of 30
seconds to measure the oxygen in the combustion process
( )The probe inserts directly into the pilot light to measure the oxygen in
the combustion process
( )The probe should be inserted into the return supply air grille, to measure
, the oxygen in the combustion process
(x)The probe inserts directly into a flue gas duct to measure the oxygen in
the combustion process ← Correct answer
Which of the following is/are disadvantages of a zoned variable air volume system?
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( )Poor energy efficiency since so much energy is used for fans
(x)Possibly poor ventilation if a zone does not require much air for cooling
← Correct answer
( )Difficult to adapt to an air-side economizer
( )Difficult to control to achieve the desired effect in each zone
Pitot tubes are double-walled tubes typically fabricated from stainless steel. At what
point does the inner tube sense the total pressure?
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( )Total point
( )Static point
(x)Stagnation point ← Correct answer
( )None of the above
A time of use rate structure includes the following conditions
Monday - Friday, 10 AM - 8 PM, 8.9c per kWh
Monday - Friday, 8 PM - 10 AM, 4.3c per kWh
environmental conditions?
Give this one a try later!
( )Sensor
(x)Controller ← Correct answer
( )Output
( )Controlled device
,In the DMZ architecture, there are ______________ firewalls.
Give this one a try later!
(x)two ← Correct answer
( )three
( )five
( )ten
Direct sunlight on an outside air temperature sensor will give the controller a false
sense of the actual ambient temperature when making decisions. For buildings
located in the northern hemisphere, the _____ side of the building is the best place to
locate the outside air temperature sensor.
Give this one a try later!
(x)North ← Correct answer
( )South
( )East
( )West
The value that the controller is aiming to achieve is called the:
Give this one a try later!
(x)Set point ← Correct answer
( )Control point
( )Offset
( )Controlling variable
,Which of the following are digital responses?
Give this one a try later!
( )Proportional
( )Proportional + Integral
( )Proportional + Integral + Derivative
( )All of the above
(x)None of the above ← Correct answer
Name the instrument used for measuring the electrical potential difference between
two points in an electric circuit.
Give this one a try later!
( )Psychrometer
( )Power Factor Meter
( )Ohmmeter
(x)Voltmeter ← Correct answer
An oxygen reading gauge is essentially an oxygen analyzer intended for use in
measuring the residual oxygen remaining in the flue gases from any combustion
process. Which of the following options describes the correct way to measure the
combustion process?
Give this one a try later!
( )The probe should be waved across the air intake grille for a period of 30
seconds to measure the oxygen in the combustion process
( )The probe inserts directly into the pilot light to measure the oxygen in
the combustion process
( )The probe should be inserted into the return supply air grille, to measure
, the oxygen in the combustion process
(x)The probe inserts directly into a flue gas duct to measure the oxygen in
the combustion process ← Correct answer
Which of the following is/are disadvantages of a zoned variable air volume system?
Give this one a try later!
( )Poor energy efficiency since so much energy is used for fans
(x)Possibly poor ventilation if a zone does not require much air for cooling
← Correct answer
( )Difficult to adapt to an air-side economizer
( )Difficult to control to achieve the desired effect in each zone
Pitot tubes are double-walled tubes typically fabricated from stainless steel. At what
point does the inner tube sense the total pressure?
Give this one a try later!
( )Total point
( )Static point
(x)Stagnation point ← Correct answer
( )None of the above
A time of use rate structure includes the following conditions
Monday - Friday, 10 AM - 8 PM, 8.9c per kWh
Monday - Friday, 8 PM - 10 AM, 4.3c per kWh
