This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is it recommended that an acetylene cylinder valve never be opened more than one-half turn? ... (Read 69 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
on: Jul 24, 2018
Why is it recommended that an acetylene cylinder valve never be opened more than one-half turn?
 
  A) To minimize the strain of the high cylinder pressures on the valve threads
  B) To allow rapid shutoff in the case of an accident
  C) To prevent the valve from getting stuck in the fully opened position
  D) To regulate the pressure to the torch handle

Question 2

The operation of a thermostatic expansion valve can best be described as:
 
  A) Evaporator pressure = evaporator pressure + bulb pressure.
  B) Bulb pressure + evaporator pressure = spring pressure.
  C) Spring pressure = bulb pressure + evaporator pressure.
  D) Bulb pressure = evaporator pressure + spring pressure.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kusterl

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


anshika

  • Member
  • Posts: 510
Reply 2 on: Jul 24, 2018
Wow, this really help

tanna.moeller

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

A nineteenth-century Japanese portrait of Commodore Matthew Perry, who “opened up” Japan in 1854. A nineteenth-century Japanese portrait of Commodore Matthew Perry, who “opened up” Japan in 1854.
Drug elimination: half-life to steady state. Drug elimination: half-life to steady state.
A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ... A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ...
The connector must be opened (disconnected) to check and/or adjust the ignition timing. On DIS/EDIS ... The connector must be opened (disconnected) to check and/or adjust the ignition timing. On DIS/EDIS ...
Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ... Turn head for access to suboccipital muscles and locate TrPs. Use fingers or thumb to apply pressure ...
Half-life Formula Half-life Formula
Video: Eczema

For a complete list of videos, visit our video library