« previous next »

Author Question: A cylinder has DOT 3AL 2015 stamped on it. What does the 3AL stand for? a. Manufacturer's ... (Read 43 times)

SO00

  • Hero Member
  • *****
  • Posts: 568
on: Jul 16, 2018
A cylinder has DOT 3AL 2015 stamped on it. What does the 3AL stand for?
 
  a. Manufacturer's initials
  b. Constructed of heat-treated, high-strength steel
  c. Required to undergo hydrostatic testing every 3 years
  d. Constructed of specially prescribed seam-less aluminum alloys

Question 2

the maximum filling pressure is marked as 2050 lb-force per square inch gauge (psig), this cylin-der is capable of holding _____ psig.
 
  a. 1845 c. 2255
  b. 2050 d. 2460


robbielu01

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
3AL means that the cylinder is constructed of specially prescribed seamless aluminum alloys and must be examined every 5 years to test its expansion characteristics. Type 3AA is constructed of heat-treated, high-strength steel.

Answer to Question 2

ANS: C
Compressed gas cylinders should be capable of holding up to 10 more than the maximum fill-ing pressure as marked. 10  2050 = 205 + 2050 = 2255 psig.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Patients unable to stand may be weighed using a chair scale. Patients unable to stand may be weighed using a chair scale.
The firing order is cast or stamped on the intake manifold on most engines that have a distributor ... The firing order is cast or stamped on the intake manifold on most engines that have a distributor ...
Finish with bilateral stroking to the entire back. Stand at head of the table with fingers pointing ... Finish with bilateral stroking to the entire back. Stand at head of the table with fingers pointing ...
Apply effleurage and petrissage on top arm. Stand in front of recipient and hold her hand with one ... Apply effleurage and petrissage on top arm. Stand in front of recipient and hold her hand with one ...
Easy way to remember to formula to calculate volume of a cylinder Easy way to remember to formula to calculate volume of a cylinder
Cylinder Cubic Question Cylinder Cubic Question
Video: Condensation and Hydrolysis Animation

For a complete list of videos, visit our video library