Safety Interview Questions 20 contains questions about decay chart, authorized exposed person, slings inspected, working radius, SWL, lifting plan, flash-back arrestor and a check valve, trench, shoring.
191. What is a decay chart?
192. Who is an authorized exposed person?
193. What are the requirements of a man basket?
194. How are slings inspected?
195.
191. What is a decay chart?
Ans: It is the chart showing the change in radioactivity of a source, for a period, at regular interval of time.
192. Who is an authorized exposed person?
Ans: He is one who got formal training in the used of sealed source and x-ray equipment used in industrial radiography.
193. What are the requirements of a man basket?
Ans: It should be designed and fabricated according to standards, have third party certificate, two guide ropes, damage free lifting gears, the load bearing capacity should be written on the man basket, shackles with cotter pin only to be used.
194. How are slings inspected?
All slings must be inspected before every use and periodically it should be inspected thoroughly and should be rejected, if found wear of one third the original outside diameter of outside individual wires, severe corrosion, distortion (kinking, crushing, bird-caging), broken wires (a maximum of 10 randomly distributed broken wires in one rope lay or 5 broken wires in one strand in one rope lay), heat damage (loss of internal lubricant by over heat exposure), pulled eye splices (any evidence that eye splices have been slipped, sleeves damage) deformation of wires and strands or pushed out of their original position and the sling should be clean from dirt or rust. Before use of the slings has to be color coded as per the month color code.
195. What is working radius?
Ans: It is the ma
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