« previous next »

Author Question: A cylinder has DOT 3AL 2015 stamped on it. What does the 3AL stand for? a. Manufacturer's ... (Read 14 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?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

The downward movement of the piston draws the air–fuel mixture into the cylinder through the ... The downward movement of the piston draws the air–fuel mixture into the cylinder through the ...
Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ... Checking gasoline for alcohol involves using a graduated cylinder and adding water to check if the ...
An overall view of the four-cylinder engine that is due for a scheduled valve adjustment according ... An overall view of the four-cylinder engine that is due for a scheduled valve adjustment according ...
A single cylinder is shown at the top and a four-cylinder engine at the bottom. A single cylinder is shown at the top and a four-cylinder engine at the bottom.
Apply fascial mobilization in one direction using a palm. Stand to the side of the face cradle; ... Apply fascial mobilization in one direction using a palm. Stand to the side of the face cradle; ...
Easy way to remember to formula to calculate volume of a cylinder Easy way to remember to formula to calculate volume of a cylinder
Video: Primate Evolutionary Tree Animation

For a complete list of videos, visit our video library