Author Question: If the voltage L1L2 is 240 V and the voltage L1N is 120 V, the transformer is connected as a delta ... (Read 35 times)

newbem

  • Hero Member
  • *****
  • Posts: 579
If the voltage L1L2 is 240 V and the voltage L1N is 120 V, the transformer is connected as a delta transformer.
 
  Indicate whether the statement is true or false

Question 2

Why is a check valve installed in the suction line of the lowest-temperature coil in a multiple-evaporator system?
 
  A) To allow the coil to be isolated from other evaporator coils when checking the operating of the evaporator pressure regulator
  B) To prevent refrigerant migration from the higher-temperature-and-pressure coil to the lower-temperature and-pressure coil
  C) To ensure that the refrigerant is completely vaporized before leaving the evaporator
  D) To allow the service technician to check the operation of the system



bassamabas

  • Sr. Member
  • ****
  • Posts: 294
Answer to Question 1

TRUE

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

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?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

For a complete list of videos, visit our video library