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

Author Question: Describe the four most commonly used rigging materials. What will be an ideal ... (Read 9 times)

Zulu123

  • Hero Member
  • *****
  • Posts: 525
Describe the four most commonly used rigging materials.
 
  What will be an ideal response?

Question 2

Describe the proper lifting techniques that should be used by construction personnel.
 
  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

kthug

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

Welded alloy steel chains. Such chain slings must have permanently affixed, durable identification information including size, grade, rated capacity, and sling manufacturer. Welded alloy steel chains must conform to the values shown in Table H-1 . Whenever any point of any chain exceeds the wear limits specified in Table H-2, it must be removed from service.
Wire rope. Wire rope and wire rope slings must conform with the values set forth in Tables H-3 through H-14 . When the sizes, classifications, and grades of wire rope are not covered in one of these tables, the manufacturer's specifications may be used provided a safety factor of five is added in.
Web slings. Web slings made of synthetic material must be permanently marked with the manufacturer's name, stock number, rate loads for various types of hitches, and type of material. Rated capacities must not be exceeded. The safety factor of web slings should be five to one in accordance with ANSI B30.9A. The slings must be load tested to at least twice the rated load. Nylon, polyester, and polypropylene web slings, as well as slings with aluminum fittings, should not be used where caustic materials in any form (fumes, vapors, sprays, mists, liquid acids) are present.
Shackles and hooks. The manufacturer's specifications should be used to determine the safe loads for various types of hooks. If manufacturer's specifications are not available, the company should test hooks to twice the planned safe working load and keep accurate, dated records of the tests.

Answer to Question 2

One of the most effective ways to prevent back injuries is to teach workers proper lifting techniques. Following are lifting techniques that should be taught as part of a company's safety program.
Plan Ahead
 Determine if you can lift the load. Is it too heavy or too awkward?
 Decide if you need assistance.
 Check your route to see whether it has obstructions and slippery surfaces.
Lift with Your Legs, Not Your Back
 Bend at your knees, keeping your back straight.
 Position your feet close to the object.
 Center your body over the load.
 Lift straight up smoothly; don't jerk.
 Keep your torso straight; don't twist while lifting or after the load is lifted.
 Set the load down slowly and smoothly with a straight back and bent knees; don't let go until the object is on the floor.
Push, Don't Pull
 Pushing puts less strain on your back; don't pull objects.
 Use rollers under the object whenever possible.




Zulu123

  • Member
  • Posts: 525
Reply 2 on: Jul 26, 2018
Excellent


CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

For a complete list of videos, visit our video library