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

Author Question: Why are two sets of contacts (one set normally open and one set normally closed) needed on an indoor ... (Read 122 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 24, 2018
Why are two sets of contacts (one set normally open and one set normally closed) needed on an indoor fan
  relay?
 
  a. To allow high-speed operation in heating.
  b. To allow low-speed operation in cooling.
  c. To allow high-speed operation after a time delay.
  d. To ensure only one motor speed winding is energized at a time.

Question 2

Which of the following system piping issues is likely to result in a larger refrigerant charge?
 
  a. Buried refrigerant lines
  b. A long liquid line
  c. A short suction line
  d. An inoperable crankcase heater


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

b


CharlieWard

  • Hero Member
  • *****
  • Posts: 578
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?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Hare running in open field Hare running in open field
A speculum used to hold the vagina open in order to visualize the cervix. A speculum used to hold the vagina open in order to visualize the cervix.
In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai
A thermostat stuck in the open position caused the engine to operate too cold. The vehicle failed ... A thermostat stuck in the open position caused the engine to operate too cold. The vehicle failed ...
The tools and equipment needed to perform a compression test include a compression gauge, an air ... The tools and equipment needed to perform a compression test include a compression gauge, an air ...
The small arrows indicate the air bypassing the throttle plate in the closed throttle position. ... The small arrows indicate the air bypassing the throttle plate in the closed throttle position. ...
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library