ENERGY MANAGEMENT AND CONTROLS/EXAM STUDY
WITH APPROVED SOLUTIONS #8
Facilities with refrigeration systems that currently use cfcs are permitted to: - correct
answer seek alternative HCFC (hydrochlorofluorocarbon) refrigerants now and
Eventually replace the system.
(Fill in the blank) By increasing indoor temperature from 70ºf to 74ºf when air
Conditioning is working, there is an approximate energy savings of __%. - correct
answer 5
To improve the efficiency of a dual-duct system, when only heating loads are present: -
correct answer use it as a single-duct system.
The amount of energy used per day in a lighting system is calculated in: - correct
answer kwh (kilowatt-hours).
For a building complex with a central plant and several remote mechanical equipment
Rooms, the best EMCS (energy management control system) to use is a: - correct
answer centralized station.
If the electrical demand charge from the utility bill is recorded in kva (kilovoltamperes): -
correct answer power factor is part of the demand.
Inadequate ventilation can cause all of the following problems except: - correct answer
damage to cooling coils.
A building in a climate with a high amount of solar gain and a long cooling season would
Be best suited for windows with: - correct answer reflective glass.
The quantity of heat in a substance is measured in: - correct answer Btu (British thermal
units).
Determination of the number of demand control functions needed for an electrical
system
Depends on the: - correct answer number of loads.
As a general rule, the most economically viable application of solar energy heating
Technology is: - correct answer SWH (service water heating).
To conserve energy, elevators that have not been used for a while should be set to: -
correct answer consume power during idling about equal to the power needed to start
them.
An easy way to monitor the performance of energy retrofits, factoring in variables
Between years, is to: - correct answer use energy accounting software.
WITH APPROVED SOLUTIONS #8
Facilities with refrigeration systems that currently use cfcs are permitted to: - correct
answer seek alternative HCFC (hydrochlorofluorocarbon) refrigerants now and
Eventually replace the system.
(Fill in the blank) By increasing indoor temperature from 70ºf to 74ºf when air
Conditioning is working, there is an approximate energy savings of __%. - correct
answer 5
To improve the efficiency of a dual-duct system, when only heating loads are present: -
correct answer use it as a single-duct system.
The amount of energy used per day in a lighting system is calculated in: - correct
answer kwh (kilowatt-hours).
For a building complex with a central plant and several remote mechanical equipment
Rooms, the best EMCS (energy management control system) to use is a: - correct
answer centralized station.
If the electrical demand charge from the utility bill is recorded in kva (kilovoltamperes): -
correct answer power factor is part of the demand.
Inadequate ventilation can cause all of the following problems except: - correct answer
damage to cooling coils.
A building in a climate with a high amount of solar gain and a long cooling season would
Be best suited for windows with: - correct answer reflective glass.
The quantity of heat in a substance is measured in: - correct answer Btu (British thermal
units).
Determination of the number of demand control functions needed for an electrical
system
Depends on the: - correct answer number of loads.
As a general rule, the most economically viable application of solar energy heating
Technology is: - correct answer SWH (service water heating).
To conserve energy, elevators that have not been used for a while should be set to: -
correct answer consume power during idling about equal to the power needed to start
them.
An easy way to monitor the performance of energy retrofits, factoring in variables
Between years, is to: - correct answer use energy accounting software.
