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 22 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
:D TYSM

bigcheese9

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
Heliotropium (marine heliotrope) lower leaf surface, showing trichomes and a few stomata Heliotropium (marine heliotrope) lower leaf surface, showing trichomes and a few stomata
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
Find the lateral area, total surface area, and volume of the frustum Find the lateral area, total surface area, and volume of the frustum
If before a massage, use the same paper towels to operate door handles and then discard in the ... If before a massage, use the same paper towels to operate door handles and then discard in the ...
Some Standard Shapes of Greek Vessels Some Standard Shapes of Greek Vessels
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

For a complete list of videos, visit our video library