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Q3. a) Define enclosed space. Give examples of enclosed space on ships. (8)

b) What is the procedure for enclosed space entry, describe the same. (8)

c) What type of permit is required for entry into enclosed spaces and how is it issued. What is its validity. (4)

Q3. i) Name the gases usually found inside enclosed spaces. (6)

ii) What instruments are used in detecting/checking the gases which are present? (6)

iii) What is the minimum level of oxygen required for entry into enclosed space. (2)

iv) With a simple diagram, explain the working of oxygen content meter. (6)

Q8. With reference to entry into enclosed spaces onboard:
a) Define “Enclosed space” and give example of enclosed spaces onboard (6)
b) Describe the checks done for testing the atmosphere inside such enclosed spaces. (5)

c) Explain safety precautions taken prior to entry into enclosed spaces onboard vessel. (5)