This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How is the Annual Fuel Utilization Efficiency (AFUE) efficiency rating determined? A) By using ... (Read 148 times)

Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
How is the Annual Fuel Utilization Efficiency (AFUE) efficiency rating determined?
 
  A) By using the NIST equation for 100 percent efficiency
  B) By multiplying the amount of combustion air with BTU output
  C) By comparing new furnace units to the efficiency of older models
  D) By using the NIST equation for 100 percent efficiency minus losses

Question 2

The two main types of fan drives are:
 
  A) Magnetic drive and hydrodrive. B) Serpentine belt and chain drive.
  C) Direct drive and belt drive. D) Planetary gear drive and worm gear drive.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ntsoane kedibone

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

C


Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 24, 2018
TY


ntsoane kedibone

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Jul 24, 2018
You're welcome


« previous next »
 

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

The small-scale distribution of different tree species in a Douglas-fir forest is determined by both The small-scale distribution of different tree species in a Douglas-fir forest is determined by both
China’s 8% annual increase in oil consumption China’s 8% annual increase in oil consumption
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ... The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ...
The flammable range consists of the concentration of fuel that will burn in atmospheric oxygen—the ... The flammable range consists of the concentration of fuel that will burn in atmospheric oxygen—the ...
Video: B cells and antibodies

For a complete list of videos, visit our video library