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 124 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?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Overview of blood flow through vessels in a closed circulatory system. Overview of blood flow through vessels in a closed circulatory system.
The Pleiades, an open cluster of stars in the constellation of Taurus. The Pleiades, an open cluster of stars in the constellation of Taurus.
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ... The tools needed to diagnose a circuit containing a relay include a digital multimeter (DMM), a ...
Measure between terminal 30 and 87a. Terminal 87a is the normally closed contact, and there should ... Measure between terminal 30 and 87a. Terminal 87a is the normally closed contact, and there should ...
A closed loop conductor that forms a circle with a radius of is located in a uniform but ... A closed loop conductor that forms a circle with a radius of is located in a uniform but ...
Video: Amniocentesis and CVS Animation

For a complete list of videos, visit our video library