Round 1: Energy Accounting & Benchmarking

A science laboratory has an area of 12,000 square feet and the calculated minimum outdoor air flow is 5,000 CFM. According to ASHRAE 62.1-2019 and the ventilation rate procedure, what is the design occupancy for the room?

• 230 People

• 284 People

• 326 People

• 446 People

• 500 People.

How many Btu’s does it take to heat 1 lb. of water from 100°F to 210°F?

• 100

• 110

• 178

• 200

• 210

Tags

NGSS.MS-PS3-4

How many MMBtu’s are contained in 140,000 gallons of #2 fuel oil?

• 1 MMBtu

• 19,600 MMBtu

• 140,000 MMBtu

• 14,000,000 MMBtu

• 19,600,000 MMBtu

Tags

NGSS.HS-PS3-1

One Futures Contract of natural gas (methane) is worth how many MMBtu?

• 100

• 1,000

• 10,000

• 100,000

• 1,000,000

Tags

NGSS.HS-ESS3-2

1.      What is the operating cost to deliver one MMBtu via the following water heaters?

Fuel                                        Fuel Rate                               Efficiency

Natural Gas $0.82/Therm 75%

Electric $0.092/kWh 96%

Light heating oil $2.40/gallon 71%

Tags

NGSS.HS-ESS3-2

NGSS.HS-ETS1-3

A metal casting facility pays $0.74/Therm for its natural gas. One of its boilers has an efficiency of 65% and could be replaced with an electric boiler with an efficiency of 95%. In order for this retrofit to remain attractive, the electricity price must not go higher than what value?

• 3.18 cents/kWh

• 3.69 cents/kWh

• 4.13 cents/kWh

• 4.97 cents/kWh

• 5.24 cents/kWh

Tags

NGSS.HS-ESS3-2

NGSS.HS-ETS1-3

Which of the following is a measurement of power?

• Btu

• Btu•hour

• kWh

• Btu/hour

• d and b

A 25,000ft² office building that is 100% conditioned space, consumed 12,000 Therms and 135,000 kWh last year. What is the Energy Use Index of the building?

• 66,423 Btu/ft² per year

• 78,118 Btu/ft² per year

• 86,144 Btu/ft² per year

• 96,205 Btu/ft² per year

• 118,118 Btu/ft² per year

Tags

NGSS.HS-PS3-4

• $0.82 per square foot per year

• $0.53 per square foot per year

• $0.082 per square foot per year

• $0.35 per square foot per year

Tags

NGSS.HS-ESS3-2

Choose the correct cost per square foot per year from the options below:

• $0.54/ft² per year

• $0.70/ft² per year

• $0.98/ft² per year

• $1.04/ft² per year

• $1.18/ft² per year