Chapter - 8 Safety Precautions and Preparatory Work

Question 1

Safety precautions should be taken before entering a vessel. This includes, but is not limited to, “,,,,,,,” and “confined space” requirements

Answer 1

lockout/tagout

Question 2

The vessel should be ,,,,, and ,,,, before it is entered

Answer 2

drained, purged, cleaned

gas tested

Question 3

Details of the safety precautions to be followed for internal and confined space entry are covered in API Publ. ,,,

Answer 3

API Publ. 2217A

Question 4

Before the inspection starts, ,,,, working around a vessel should be ,,,, that people will be working inside the vessel

Answer 4

all persons

informed

Question 5

Workers inside a vessel should be ,,, when any work will be done on the ,,, of the vessel to prevent their becoming alarmed by unexpected or unusual noise.

Answer 5

informed

exterior

Question 6

Breathing air should be supplied from ,,, or a dedicated ,,,,, that is certified for breathing air.

Answer 6

cylinders

air compressor system

Question 7

At least ,,, independent breathing-air sources shall be used

Answer 7

two

Question 8

Breathing-air hose couplings shall be ,,,,,, with the couplings for other utility gas systems

Answer 8

incompatible

Question 9

Prior to inspections, the vessels should be cleaned by high pressure water blasting at ,,,,,pressure

Answer 9

8000 lbf/in.2 to 20,000 lbf/in.2 (55.2 MPa to 137.9 MPa)