Question Paper Section -36
Confined Space Safety Quiz
Test your knowledge on confined space safety and regulations with this comprehensive quiz. Covering essential topics like gas detection, safety equipment, and emergency protocols, this quiz is designed for professionals and enthusiasts alike.
Key Features:
- 23 multiple-choice questions
- 2 descriptive questions to assess practical knowledge
- Focus on real-world application of safety standards
1. Which section of The Factories Act 1948 applies to confined space?
A) Section 7
Section 20
Section 36
Section 48
2. Under which Rule of the Gujarat Factories Rules 1963, Director of Industrial Health and Safety, Gujarat State recognize the competent person?
Rule 2
Rule 2-A
Rule 10
Rule 34
3. TLV and STEL limits are specified under which schedule?
First schedule of Act 1948
Second schedule of Act 1948
Schedule II of GFR 1963
Schedule VI of GFR 1963
4. TLV-TWA is a concentration of chemical which is acceptable for:
06 hrs. Of operation
15 minutes Of operation
08 hrs. Of operation
Momentary operation
5. The Threshold Limit Value of a chemical for 15 Minutes operation is termed as:
TLV-TWA
TLV-STEL
TLV-ceiling
None
6.The Concentration of chemicals which should never be crossed even momentarily while working in a plant is termed as:
TLV-TWA
TLV-STEL
TLV-ceiling
None
7. At how many locations/ levels, measurement of hazardous gas should be measured in confined space
One
Two
Three
Four
8. When a person is working inside the confined space, a belt securely attached to a rope, the free end of which should be held by a person outside the confined space :
True
False
9. Which of the following is the true purpose of “Permit to work” system in an industry?
To increase productivity
To authorize “non routine hazardous operations”
To carry out safety audit
To conduct safety study
10. Which of the following type of respirators can be used in an oxygen deficient atmosphere?
Air purifying
Air supplied type
Air generating type
None
11. On which of the following factors, selection of a respirator depends?
Type of contaminants
Period of protection required
Activity of wearer
All the above
12. Which type of breathing Apparatus is considered safer in a toxic atmosphere of unknown concentration?
Positive pressure type
Negative pressure type
Regenerating type
None of the above
13. In a vessel entry job what is the ‘maximum voltage’ permitted to be used for lighting purpose?
24 V
30 V
50 V
100 V
14. Which of the following is considered to be the safe limit of current from shock point of view?
5 mA
30 mA
20 mA
50 mA
15. STEL value of H2S is :-
15 ppm
5 ppm
20 ppm
10 ppm
16. For which of the following an Explosimeter is used?
Determination of toxic gases
Determination of TLV of gases.
Determination of LEL of gases in air
None of the above
17. When the concentration of inflammable or toxic gases in a tank is within safe limit, it is said to have a
Oxygen free atmosphere
No-toxic atmosphere
Gas free atmosphere
Safe atmosphere
18. Welding/cutting or any hot job can be permitted in a area when the flammable gas percentage :
Does not exceed 20 % of LEL
Exceeds 20 % of LEL
Does not exceed 10 % of LEL
Exceeds 40 %.
19. The condition that produces oxygen deficiency in a human body in a confined space is called.
Systematic poisoning
Gas poisoning
Asphyxiation
None.
20 Safe range of oxygen level to enter in confined space
5.0 % to 7.5
19.5 % to 21.5 %
17.5 % to 25 %
15 % to 27.5 %.
21 Which of the following gases is heavier than air?
Hydrogen sulphide
Oxygen
Acetylene
Methane
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