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

Author Question: What is the common operating voltage range on the cells of electronic air cleaners? A) 6,000 to ... (Read 93 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Jul 24, 2018
What is the common operating voltage range on the cells of electronic air cleaners?
 
  A) 6,000 to 10,000 volts DC B) 120 to 240 volts AC
  C) 25,000 to 50,000 volts DC D) 480 to 600 volts DC

Question 2

What is the last step in the operational sequence of the typical oil-fired furnace?
 
  A) The flame shuts down. B) The indoor blower turns off.
  C) The heat exchanger cools. D) The fan switch contacts open.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bigsis44

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

B


tth

  • Member
  • Posts: 579
Reply 2 on: Jul 24, 2018
Excellent

EAN94

  • Member
  • Posts: 307
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Electron micrograph of the plasma membranes of two cells showing the glycocalyx. Electron micrograph of the plasma membranes of two cells showing the glycocalyx.
Various types of cells within the human body. Various types of cells within the human body.
Summary of Drug Action: Common Routes of Administration Summary of Drug Action: Common Routes of Administration
Common Abbreviations and Symbols Used by Massage Therapists Cont Common Abbreviations and Symbols Used by Massage Therapists Cont
Stages of gene regulation in human cells Stages of gene regulation in human cells
An example of a cell-mediated immune response targeting virus-infected cells. An example of a cell-mediated immune response targeting virus-infected cells.
Video: DNA fingerprinting Animation

For a complete list of videos, visit our video library