ISRO Paper 2019 & 2024 PDF

# Adzda Adzda Okay! Here are the questions and answers from the PDF in the document. ## Questions and Answers 1. What is the frequency rate for a company with 625 workers, each working for 48 hours per week for a duration of 50 weeks had 30 lost-time injuries in the year 2018? - Answer: 20 2. Wh...

# Adzda Adzda Okay! Here are the questions and answers from the PDF in the document. ## Questions and Answers 1. What is the frequency rate for a company with 625 workers, each working for 48 hours per week for a duration of 50 weeks had 30 lost-time injuries in the year 2018? - Answer: 20 2. What colours are used on safety signs for firefighting equipment? - Answer: Black pictogram on a yellow background 3. What is the most effective way to control hazard? - Answer: Engineering controls 4. As per IS 3786, what is the equivalent Man Days Lost for loss of four fingers in one hand? - Answer: 2400 5. As per factories act, safety committee to be constituted wherein more than how many Workers are engaged or employed? - Answer: 250 6. To retain the recognized certification of OHSAS 18001, Organizations which are certified to BS OHSAS 18001 should migrate to ISO 45001 by? - Answer: June 2021 7. Which management tool is called as a top down approach in safety analysis? - Answer: Fault Tree Analysis 8. The main objective of risk assessment is to? - Answer: Evaluate hazard and minimize the risks 9. In factories, incidence rate is calculated by? - Answer: Total No. of Accidents x 106 / Total Man-Hour Worked 10. Under the UN classification of hazardous materials, a material under UNHD 1.0 is? - Answer: Corrosive 11. Which of the following is not hazard identification and risk analysis study? - Answer: What-if analysis 12. Risk Priority Number (RPN) cannot be more than? - Answer: 1000 13. What is the Oxygen Deficiency in a room of size 5m x 10m x 3m due to spillage of cryogenic liquid with expansion ratio of 1:682? - Answer: 15.2% 14. The atmospheric conditions are normally classified according to six Pasquill stability Classes, a neutral coning type plume dispersion falls under which stability class? - Answer: Stability Class D 15. Nodes, design indent and guide words are associated with? - Answer: HAZOP 16. In FTA analysis, a primary event is? - Answer: considered as independent and is not further broken down 17. What is the flow rate of water required for Deluge system to cool the surface of spherical tank storing LPG? The Diameter of the Sphere is 10m and the density of water spray application rate is 10 lpm/m². - Answer: 3140 lpm 18. Which one of the following is a passive fire protection system? - Answer: Fire Break 19. Battery Manufacturing units falls under which type of building occupancy? - Answer: High hazard (A) 20. The life time of Carbon-di-oxide type fire extinguisher is? - Answer: 5 years 21. Radioactive elements are used in which type of Smoke detectors? - Answer: UV/IR based 22. A mixture of Hydrogen in air at ambient conditions is explosive between the range? - Answer: 4% to 94% 23. A chemical explosion in which the speed of the reaction front moves faster than the speed of sound in that material is called? - Answer: Detonation 24. Under the classification of hazardous zones for flammable gases, an area where explosive air-gas mixture is continuously present, or present for long periods is classified as? - Answer: Zone 0 25. Occupational disease caused by deposition of excess iron in the body tissue is? - Answer: Siderosis 26. An instrument for measuring exposure to ionizing radiation is? - Answer: Dosimeter 27. Accidental contact of Cryogenic liquid with body parts causes? - Answer: Frost Bite 28. Name the occupational illness caused due to Repetitive Strain injury (RSI)? - Answer: Carpal Tunnel Syndrome 29. Permissible exposure limit (PEL) is a regulatory limit introduced by? - Answer: OSHA 30. Strongest ionizing radiation among the following is? - Answer: gamma 31. lasers are potentially the most hazardous. - Answer: Class 4 32. As per rule 8 of the Hazardous and Other Wastes (Management and Transboundry) Rules, 2016, the occupier can store hazardous and other wastes for a period up to how many days from the date of generation? - Answer: 100 33. As per Air (Prevention and Control of Pollution) Act, 1981, the concentration of Particulate Matter (size less than 10μm) in ambient air at residential area for 24 hours (Time Weighted Average) is? - Answer: 100 µg/m³ 34. As per SMPV rules, the 5 years storage license issued by PESO, Nagpur for all pressure vessel is valid up to which month of the corresponding year. - Answer: 30th November 35. What is the permissible value of BOD allowed to discharge as Pollution control norms? - Answer: 30 mg/l 36. What is the minimum safety storage distance to be maintained between Oxygen and flammable gas cylinders? - Answer: 20 ft 37. As per the Gas Cylinder rules 2016, a license is required to store how many cylinders or kg, of a flammable non toxic gas? - Answer: >25 nos, >200 kg 38. As per Indian Factories Act, the maximum permissible exposure limit to a continuous noise for eight hours working is? - Answer: 85dBA 39. As per IS 4379-1981, the content in a cylinder with black body and bands of signal red and golden yellow is? - Answer: Acytelene 40. What is the colour coding for industrial Acetylene Cylinder? - Answer: Maroon 41. Beyond what pressure the Cylinder filled with compressed gases are called as high-pressure cylinders (IS 7241-1983)? - Answer: 100 bar 42. An electric resistance welding operates with? - Answer: High current and low voltage 43. "Factor of safety" is defined as the ratio of? - Answer: yield strength and working stress 44. is a safety device used in Oxy-fuel welding and cutting to prevent reverse flow of flame to the supply line. - Answer: Flashback arrester 45. While storing different hazardous waste at one place, the critical characteristic to be considered is? - Answer: Compatibility 46. The validity of consent to operate orange category of industries as per water act and air act is? - Answer: 10 years 47. Biomedical waste shall be disposed by? - Answer: Incineration 48. The effective height of stack is given by? - Answer: Plume height + Actual height of the stack 49. is a liquid form of aerosol. - Answer: Mist 50. As per The Indian Electricity Rules, 1956, extra high voltage means exceeding? - Answer: 33000 Volts 51. A worker is grinding a metal piece with a portable electric grinding tool and sweating. He has hand-to-hand resistance of 1,000 ohms. The worker contacts 220 volts with one hand and touches a ground surface with the other. This completes the loop to the voltage sources. Calculate the flow of current. - Answer: 220 mA 52. Temperature class T4 rating in electrical equipment's denotes the maximum temperature of the surface is? - Answer: 135°C 53. Which type of earthing has the least resistance value? - Answer: Power earthing 54. The prime function of an RCCB in an electrical circuit is? - Answer: Prevent electrocution 55. A design where the system can suffer complete loss of function without creating significant damage or danger is called? - Answer: Fail safe 56. As per Gas Cylinder rules 2016, a license is required to store how many cylinders or kg, of a flammable non toxic gas? - Answer: >25 nos, >200 kg 57. As per Indian Factories Act, the maximum permissible exposure limit to a continuous noise for eight hours working is? - Answer: 85dBA 58. As per IS 4379-1981, the content in a cylinder with black body and bands of signal red and golden yellow is? - Answer: Acetylene 59. What is the colour coding for industrial Acetylene Cylinder? - Answer: Maroon 60. Beyond what pressure the Cylinder filled with compressed gases are called as high-pressure cylinders (IS 7241-1983)? - Answer: 100 bar 61. An electric resistance welding operates with? - Answer: High current and low voltage 62. "Factor of safety" is defined as the ratio of? - Answer: yield strength and working stress 63. is a safety device used in Oxy-fuel welding and cutting to prevent reverse flow of flame to the supply line. - Answer: Flashback arrester 64. While storing different hazardous waste at one place, the critical characteristic to be considered is? - Answer: Compatibility 65. The validity of consent to operate orange category of industries as per water act and air act is? - Answer: 10 years 66. Biomedical waste shall be disposed by? - Answer: Incineration 67. The effective height of stack is given by? - Answer: Plume height + Actual height of the stack 68. Which type of earthing has the least resistance value: - Answer: Power earthing 69. The prime function of an RCCB in an electrical circuit is: - Answer: Prevent electrocution 70. A design where the system can suffer complete loss of function without creating significant damage or danger is called: - Answer: Fail safe