JE-015 Vi Semester B.Tech. (Mechanical Engineering) Degree Examination, September 2022 (CBCS Scheme) 48MEOE62A (Open Elective — Il) : INDUSTRIAL SAFETY Time : 3 Hours Max. Marks : 100 Instruction: 1) Q. 1 is compulsory. 2) Answer five questions choosing atleast o question from each Unit. ne full Choose the correct answer. Each question carries one mark. 4. a) Colour representing radiation hazard i) Red ii) Green iii) Black iv) Purple b) Water used to extinguish i) Class — A fires il) Class - B fires iii) Class — C fires iv) All of the above ©) Class of fire occurring in electrical equipment i) Class - A fires ii) Class —B fires ili) Class —C fires iv) All of the above d) Flammable fires and extinguished using i) Soda acid ii) Vaporizing liquid iii) Foam iv) Dry chemical e) Ethics may defined as i) Acode of conduct ii) A code of material iii) A code of misconduct iv) None of the above {) Need Hierarchy Theory of Motivation is propounded by i) Maslow ii) Mc Gregor iii) Herzberg iv) None P.T.0.2 NO te Due “2 (hy eee ith Group discussions rship style with Gr s ° Tadeoate ae ii) Democratic style i ie iii) paternalistic style iv) Non cidents are f the industrial act " piuevleabl ii) Not preventable iii) Preventable iv) All of the above i) A safety measure for a household electrical wiring i) MCB ii) ACB iii) OCB iv) KCB j) Causes of wear i) Lack of lubrication ii) Over load iii) Misalignments iv) All of the above k) Corrosion involves i) Physical reactions ii) Chemical reactions iii) Both i) and ii) iv) None of the above 1) Factory with more than 500 works require i) Safety officer ii) Security officer iii) Welfare officer iv) Medical officer m) The fire triangle doesnot include i) Oxygen ii) Fuel iii) Temperature iv) Heat n) Maintenance consists of i) Replace of component il) Repair of component Service of component iv) All of the above ©) Factories Act, 1948 includes i) Cleanliness ili) Drinking water ji) Wash rooms iv) All of theman 0 “3 JE-015 UNIT -1 2. a) Discuss different types of accidents and its causes. 8 b) How Factories Act, 1948 helps to improve the working conditions ? 9 UNIT -II 3. a) Propose the primary and secondary functions of an industry. 8 b) Compare maintenance costs and replacement costs. 9 UNIT - II 4. Propose the methods for prevention of wear and corrosion in an industry. 17 5. What are the causes of wear and corrosion ? 17 UNIT -IV 6. Propose fault tracing methods for any two electrical and any two mechanical equipments. 17 7. What type of fault you will find with a) Machine tool b) Pump c) Air compressor d) Boiler. 17 UNIT -V 8. Propose periodic and preventive maintenance for any two electrical and any two mechanical equipments. 17 9. What type of preventive maintenance you will propose for i) Diesel generating sets ii) Pumps iii) Air compressors iv) Any one electrical equipment. 17(i JE -018 LEQ xe me Zens ‘Semester B.Tech. (Mechanical Engineering) Degree Ae Examination, July 2023 (CBCS Scheme) 18MEOE62A (Open Elective — Il) : INDUSTRIAL SAFETY Time : 3 Hours Max. Marks : 100 Instructions: 1) Q. No. 1, 2, 3 are compulsory. 2) Answer any one question from Unit Ill, IV and V. 1. Choose the correct answer. Each question carries one mark. a) Safety management deals with qualified i) Personal injury ii) Prevention of an accident iii) Damage to the equipment __iv) Loss of life b) Who may be responsible for accident ? i) Worker ii) Working conditions iii) Management iv) All of the above c) Which accidents should be reported to management ? i) Only serious accidents ii) Major accidents ili) Which causes damages to machine iv) All d) Causes of wear i) Lack of lubrication ii) Over load iii) Misalignments iv) All of the above e) Factory with more than 500 workers require i) Safety officer ii) Security officer iii) Welfare officer iv) Medical officer P.T.O.(tea JE-018 2 f) The fire triangle does not include i) Oxygen ii) Fuel iii) Temperature iv) Heat improves the safety in an industry. ii) Good housekeeping iv) All of the above g) —_——_ i) Reduced noise level iii) Material handling system h) The down time cost consists of i) Loss of production ii) Wages paid to the workers iii) Reduction in sales iv) All of the above i) Factories Act, 1948 includes i) Cleanliness iii) Drinking water ii) Wash rooms iv) All of them j) Maintenance consists of i) Replace of components iii) Service of components ii) Repair of components iv) Allof the above k) Corrosion involves i) Physical reactions iii) Both i) and ii) l) The principal functions of lubricants are i) Reduce friction ii) Control temperature rise iii) Control wear iv) All of the above m) Flammable fires are extinguished using i) Soda acid ii) Vaporizing liquid iii) Foam iv) Dry Chemicals ii) Chemical reactions iv) None of the above n) Color representing radiation hazard i) Red ii) Green iii) Black iv) Purple 0) cl safety management is the branch of management which is joncemed with — hazards from the industries. i) Reducing ii) Controlling ii) Eliminating) All of thes?(sn * JE-018 UNIT -1 2. a) Define fire and discuss the classification of fire. 8 b) How Factories Act, 1948 helps to improve the working conditions ? 9 UNIT =I 3. a) What are types of maintenance ? Explain them in detail. 10 b) What do you mean by economic life of equipment ? Explain. 7 UNIT = III 4. Define wear. Explain the various wear reduction methods. 7 5. With neat sketch explain : 17 a) Screw Cap Lubricator b) Splash Lubricator c) Ring Oil Lubricator. UNIT -IV 6. What is the need to perform failure analysis and what are the common failure o analysis techniques ? 7. Explain Fault tracing concepts with respect to 17 i) Air Compressor ii) Electric Motor. UNIT-V 8. Propose periodic and preventive maintenance for any two electrical and any two mechanical equipment. 17 9. Define Overhauling. What are the benefits of overhauling ? Explain e overhauling of Electric motor in stages.