This topic contains a solution. Click here to go to the answer

Author Question: How is a hot water boiler pressure relief valve tested? A) By jumping the aquastat and limit, ... (Read 41 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
How is a hot water boiler pressure relief valve tested?
 
  A) By jumping the aquastat and limit, forcing the boiler to operate until the pressure relief valve opens
  B) By checking the continuity of its operating coil
  C) By lifting the lever located on top of the relief valve
  D) By slowly adding nitrogen pressure until the relief valve opens

Question 2

Explain where you would typically find the evaporator and condenser on a refrigeration display case.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stallen

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

C

Answer to Question 2

The evaporator on a refrigeration display case built into the case so as to provide the most area of cooling. The condenser may be mounted directly below the case if it is water cooled and it may be mounted outside near the location of the display case, to ensure the amount of interconnecting refrigeration tubing is as short as possible.




jjjetplane

  • Member
  • Posts: 556
Reply 2 on: Jul 26, 2018
:D TYSM


Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Excellent

 

Did you know?

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

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

For a complete list of videos, visit our video library