Confined Space Quiz Practice June 4, 2025 by Rizwan Khan Confined Space Quiz 1 / 21 What is the maximum allowable concentration of oxygen for safe confined space entry? 20% 21% 23.5% None of the above 2 / 21 What is the acronym for the steps to follow in a confined space entry? SAFE CLEAR PERMIT None of the above 3 / 21 When should atmospheric testing be performed in a confined space? Only before entry Continuously, while entrants are inside After entry is complete None of the above 4 / 21 What should you do if you encounter a hazardous atmosphere while entering a confined space? Proceed cautiously Continue entry and ignore it Stop entry and address the hazard None of the above 5 / 21 What is the purpose of ventilation in confined space entry? To eliminate all hazards To provide fresh air and remove contaminants To make it easier for entrants to see To reduce noise levels 6 / 21 Which of the following is a key responsibility of the entry supervisor? Remaining outside the confined space Entering the confined space first Operating the equipment inside the confined space None of the above 7 / 21 What is the difference between a permit-required confined space and a non-permit confined space? Permit-required spaces are larger Permit-required spaces have more hazards There is no difference None of the above 8 / 21 What is the primary role of an attendant during confined space entry? To secure the confined space from unauthorized access To increase the noise level inside the space To provide adequate lighting inside the space To monitor entrants and initiate rescue if needed 9 / 21 Which of the following is a physical hazard commonly found in confined spaces? Temperature fluctuations Low noise levels Good lighting None of the above 10 / 21 What is the primary purpose of a confined space entry permit? To authorize entry and outline safety procedures To schedule maintenance tasks To track attendance To monitor atmospheric conditions 11 / 21 What is the minimum number of authorized entrants required for confined space entry? One Two Three Four 12 / 21 What should be done if a hazardous atmosphere is detected in a confined space? Continue working and monitor the situation Ventilate the space and re-test the atmosphere gnore the hazard and proceed with work Enter the space with appropriate PPE 13 / 21 What is the role of an attendant during confined space entry? To enter the confined space with the workers To monitor the entrants and initiate rescue if needed To supervise from a distance To perform maintenance tasks inside the space 14 / 21 Which of the following is a common hazard in confined spaces? Hazardous atmospheres Excessive lighting High noise levels All of the above 15 / 21 Which of the following is a common hazard in confined spaces? Hazardous atmospheres Excessive lighting High noise levels All of the above 16 / 21 What is the acceptable range of oxygen concentration in a confined space? 10% to 15% 19.5% to 23.5% 25% to 30% 30% to 35% 17 / 21 What is the purpose of atmospheric testing before entering a confined space? To check the temperature To detect hazardous gases and oxygen levels To measure noise levels To assess lighting condition 18 / 21 Who is responsible for issuing a confined space entry permit? The workers themselves The supervisor or entry supervisor The safety officer only The government 19 / 21 What is the primary risk associated with confined spaces? Noise pollution Lack of oxygen Overcrowding Excessive lighting 20 / 21 There are two classifications of confined spaces Regulated and Unregulated permit required and non-permit required square and round Top entery and side entry 21 / 21 Confined Spaces can have: Areas with the limited access Areas with atmospheric hazards Electrical Hazards Any or All of the Above Your score isThe average score is 0% 0% Restart quiz