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Pathshala
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CRM-III · SAFETY QUIZ
Gas & Hydrogen Safety
Select a level and answer each question. You can revisit answers before submitting.
13 published questions
All
13
Foundation
7
Practical
3
Advanced
3
0 / 7 answered
Choose the best answer
QUESTION 01 / 7
Foundation
What is the purpose of a flashback arrester on a gas-cutting set used in SPM coil preparation?
A
To help prevent flame propagation back into the gas supply
B
To increase oxygen purity
C
To measure cylinder contents
D
To replace hose inspection
QUESTION 02 / 7
Foundation
Before gas cutting an oily mill area during strip-break recovery, what is the primary hazard?
A
Loss of strip thickness accuracy
B
Ignition of oil or oil-soaked material
C
Increased rolling force
D
Failure of the coil tracking barcode
QUESTION 03 / 7
Foundation
What is the main hazard when nitrogen or argon accumulates in an enclosed space?
A
Corrosion of all steel equipment
B
Displacement of breathable oxygen
C
Formation of visible smoke
D
Automatic generation of carbon monoxide
QUESTION 04 / 7
Foundation
A compressed-air pipeline is scheduled for dismantling during a mill shutdown. Which action is specified before opening it?
A
Depressurize the pipeline
B
Disconnect the largest flange first
C
Keep the compressor running at low pressure
D
Loosen bolts until air escapes
QUESTION 05 / 7
Foundation
Why must hydrogen leaks be treated seriously even when no gas smell is detected?
A
Hydrogen is odourless and highly flammable
B
Hydrogen always produces a strong warning smell
C
Hydrogen cannot ignite at normal temperatures
D
Hydrogen leaks are harmless in ventilated rooms
QUESTION 06 / 7
Foundation
A gas cylinder must be moved across a repair bay. Which method is consistent with the CRM guideline?
A
Roll it along the floor on its side
B
Carry it using the regulator
C
Drag it by the valve guard
D
Move it using a suitable cylinder trolley
QUESTION 07 / 7
Foundation
Why should a suspected gas leak be reported immediately?
A
It may create fire, explosion, or exposure hazards
B
It improves process yield
C
It only affects instrument calibration
D
It changes the product label
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