Interview Question & Answer - Lifts & Lifting Tackles

 

1. Q. What is meant by the letters S. W. L.? 
    A. Safe Working Load. 

2. Q. Name two items that can be defined as lifting accessories? 

    A.  1. clamps and similar attachments, 
         2. chain slings, 
         3. rope slings, 
         4. rings, 
         5. hooks, 
         6. shackles, 
         7. swivels, 
         8. spreader beams, 

         9. spreader frames 
         10. any other item placed between lifting equipment and the load or 

               on the load in order to attach  it. 

3. Q. What is necessary before any Lifting accessories can be taken into use for the first time? 
     A. A valid certificate of test, issued by the supplier. 

4. Q. How often must Lifting accessories be thoroughly examined? 
     A. Every six months. 

5. Q. Where is it necessary to keep particulars of Lifting accessory examinations? 
     A. In a register of lifting equipment and lifting accessories . 

6. Q. Would you anneal chains of malleable cast iron? 
     A. No. 

7. Q. Would you give heat treatment to hooks and swivels having ball bearings? 
     A. No. 

8. Q. What is meant by "patent defect”? 
     A. A defect that can be seen. 

9. Q. What is the best form of defence against accidents involving lifting accessories? 
     A. Constant inspection.

10. Q. How should lifting accessories be stored when not in use? 
       A. On proper hooks or shelves in a dry place. 

11. Q. Do slingers require special instruction? 
       A. They should be fully instructed by a competent person before being allowed to sling a load. 

12. Q Give two examples of where you would see the letters S.W.L. displayed? 

       A.  1. Lifting accessories. 
            2. Hoists. 
            3. Cranes. 
            4. Lifts. 

13. Q. In relation to lifting accessories what does the term "Safety Hook" mean? 
       A. A hook provided with a safety latch across the throat opening of  the hook to prevent a sling being accidentally dislodged. 

14. Q. If a hook is not provided with a safety latch across the throat opening to prevent a sling being accidentally dislodged, what precautions can be taken? 
       A. The hook should be "Moused" i.e. lashed across the mouth. 

15. Q. Is it necessary for eyebolts to have the safe working load marked on them? 
       A. Yes - All lifting accessories must be so marked. 

16. Q. When using bulldog clips to secure a wire rope, how should the clips be fitted? 
       A. The "U" bolt should be on the dead line, the saddle on the load line. 

17. Q. When using bulldog clips to secure a wire rope, how many clips should be used? 
       A. Three bulldog clips should be fitted. 

18. Q. When using bull dog clips to secure a wire rope, by how much do bull dog clips reduce the S.W.L. of the wire rope? 
       A. By approximately one third of the S.W.L. rating

19. Q. When using a shackle with a "Nut and Bolt" pin what is an important check when the nut is tight? 
       A. The pin should be free to rotate when the nut is tight. 

20. Q. Is a table showing the Safe Working Load of all lifting accessories required? 
       A. Yes, unless lifting accessories is so marked. 

21. Q. When checking the diameter of the bow or pin of a shackle for excessive wear, at what diameter should it be taken out of service? 
       A. In excess of 10% wear. 

22. Q. When using bull dog clips to secure a wire rope, how should the clips be fitted, how many clips should be used, by how much do bull dog clips reduce the S.W.L. of the wire rope? 

       A.  1. The “U” bolt should be on the dead line, the saddle on the load line. 
            2. Three bull dog clips should be fitted. 
            3. By approximately one third of the S.W.L. rating. 

23. Q. What might cause an item of lifting accessory to break even though the lifting accessory is in good condition and the load being lifted is within the Safe Working Load of the tackle?
       A. The sudden application of a shock load.