« previous next »

Author Question: PTAC units are A) Packaged temporary air conditioning units B) Partial temporary air conditioning ... (Read 127 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
on: Jul 26, 2018
PTAC units are
 
  A) Packaged temporary air conditioning units B) Partial temporary air conditioning units
  C) Partial trajectory air conditioning units D) Packaged terminal air conditioning units

Question 2

Chilled water systems use a primary refrigerant to remove heat from a secondary refrigerant in a chiller unit. What is the secondary refrigerant in such systems?
 
  A) Ammonia B) R22 C) R134A D) Water


SamMuagrove

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Galaxies Forming by Combining Smaller Units Galaxies Forming by Combining Smaller Units
Forensic anthropologists working at a temporary morgue following the recovery of remains from a floo Forensic anthropologists working at a temporary morgue following the recovery of remains from a floo
A Simple Neural Model of Instrumental Conditioning A Simple Neural Model of Instrumental Conditioning
Normal Partial Pressures Normal Partial Pressures
Conditioning Example Conditioning Example
The Power of Classical Conditioning The Power of Classical Conditioning
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library