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

Author Question: Hot-surface ignition units: A) Operate for only a few minutes per day. B) Are standard ignition ... (Read 65 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Jul 27, 2018
Hot-surface ignition units:
 
  A) Operate for only a few minutes per day. B) Are standard ignition systems.
  C) Substantially increase an electric bill. D) Are powered by 220 V.

Question 2

How does the flame rod sense the flames in a flame rectification circuit?
 
  A) The flame changes the AC voltage to pulsed DC current.
  B) The resistance of the flame rod changes when heated by the flame.
  C) The flame rod expands from being heated, making a mechanical switch at its base.
  D) The flame rod is made of a semiconductor material that acts as a silicon controlled rectifier when it is hot.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Juro

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


anjilletteb

  • Member
  • Posts: 569
Reply 2 on: Jul 27, 2018
Excellent

6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
A typical two-wire coil-on-plug ignition system showing the triggering and the switching being ... A typical two-wire coil-on-plug ignition system showing the triggering and the switching being ...
standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple
Open pit mining creates immense holes at the surface Open pit mining creates immense holes at the surface
Cells are the basic units of life Cells are the basic units of life
Expressing amounts of energy in different energy units is necessary to solve man Expressing amounts of energy in different energy units is necessary to solve man
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library