« previous next »

Author Question: What is the lowest percentage of full capacity that a digital scroll can be safely operated for ... (Read 66 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
What is the lowest percentage of full capacity that a digital scroll can be safely operated for extended periods?
 
  A) The digital scroll compressor can only operate at full capacity.
  B) The compressor can be operated at 0 by simply leaving the unloading solenoid energized.
  C) The digital scroll compressor cannot be operated below 50 capacity.
  D) The minimum capacity is 10 to ensure that the compressor gets proper lubrication.

Question 2

On a commercial refrigeration system with electric defrost, what does the compressor do during the defrost cycle?
 
  A) It shuts off.
  B) It operates to provide the heat for defrost.
  C) It cycles like it normally would.
  D) It runs backwards to pump hot gas into the evaporator.


ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Teaching methods based on patients developmental capacity Teaching methods based on patients developmental capacity
The percentage of never-married men and women decreases with age, and by the age of 65, more than ... The percentage of never-married men and women decreases with age, and by the age of 65, more than ...
Excess heat capacity chart Excess heat capacity chart
Full-term pregnancy Full-term pregnancy
Percentage of higher-income Canadian households Percentage of higher-income Canadian households
Plot of the percentage of X-linked recessive mutations Plot of the percentage of X-linked recessive mutations
Video: Humerus Adduction Animation

For a complete list of videos, visit our video library