Safety Ques &amp Ans [PDF]

Zitiervorschau

- Safety Questions and Answers Prepared by S Kadar M*

TOPICS Industrial Safety & GFPC Policy Importance of Housekeeping Important Phone numbers and Radio Numbers PPE (Personal Protective Equipment) Work Permit System Cold work Permit Hot work Permit Confined Space Permit Excavation Permit Vehicle entry Permit Electrical Lock Out & Tag Out High Elevation Job Radiography Chemistry of Fire Ignition Hazards NFPA code Fire Fighting MSDS Quality Control Safety Electrical Hazards Static Electricity First Aid Tank Farm hazardous Home electricity

INDUSTRIAL SAFETY AND GFPC POLICY

1.

Why Industrial Safety is important? With rapid advances in Industrial process, new types of dangers to life, health and environmental are getting increased. Yearly several billions of employees are injured in factories due to mechanical, electrical, chemical and radiation hazards. Many are disabled for life. Few die even. To prevent all these, industrial safety is important.

2.

What is the Safety Policy in GFPC? GFPC Safety Policy: We are committed to safeguard Health, Safety and Environmental interests of all concerned to achieve business success. We believe that all accidents are preventable; we commit to practice Safety as a culture across the organization.

3.

What are the Objectives of HSE? Provide and maintain a safe work place for ourselves, contractors, customers, and community. Comply with all applicable laws, regulations and standards. Continue to expand and enrich our knowledge of Safety, Occupational Health and the working Environment. Conserve natural resources and further increase margins of protection by reducing waste generation and contamination of air, water and land. Ensure that any waste is disposed off in a safe and environmentally sound fashion. Design, construct and install inherently safe facilities, operation and maintain them in a safe manner to minimize risk.

Use the right tolls, equipment and the appropriate personal protective equipment for the work we perform and always see that they are in a safe working condition. Maintain the highest standards of housekeeping. Set a good example for others by demonstrating a comprehensive level of awareness that will prevent unsafe acts and behavior that could result in an injury, illness, or loss of property on and off the job. Accept and assure that compliance with this policy is a criterion of personal performance and substantial condition of employment progress in GFPC. We encourage all constructive proposals of continuous improvement. We care about each other and those around us, and believe that all injuries and occupational diseases ad environmental deviations are avoidable. 4.

What is the main motto of GFPC Safety Policy? The Safety Policy is normally laid down by the employer, which aims at the well being of all the employees both mentally and physically. It declares the commitment (promise) of the top management to Health, Safety and Environment; it also makes arrangements to make the ‘policy’ active.

5.

How Safety can be best achieved in plant operations? Safety can be best achieved by having Safety Standards Procedures and adhering to the SSP’s.

6.

What is the important of the House keeping? Housekeeping is the main tool to prevent accidents. A place for everything and everything in its place is the motto to be followed. Poor housekeeping is a source of accidents in industries.

7.

What are the jobs of Housekeeping? Check and ensure the safety equipments are in good condition. Report leaks in the plant.

Avoid oil spillage. Store all the chemicals in safe place. Before closing the permit ensure the equipment and area is clean and safe condition after maintenance. Barricade unsafe/hazardous area with proper sign board. ‘F’ keys kept in proper place. All the hoses are rolled in a proper place. Hang the helmets in a proper place. Keep the files in designated place.

8.

What are the Emergency Telephone numbers of GFPC? Fire

333 (information to Control Room)

Head Count (Admin)

444

Security

555

First aid Centre

666

CCC (Central Command Centre) (Admin Building)

111, 777, 888

ECC (Emergency Command Centre) (Control Room)

222

External Police Ambulance Civil Defense JAMA’A JAMA’A Radio channel Al-Fanteer Hospital RC Industrial Security RC Environmental

999 997 998 3411055 7/A 3464000 3404170 3411050 3417777

Neighboring Industries SASREF Aramco Petrokemya SCECO

9.

What are the Radio Numbers of important persons? President Manufacturing Director Operation Head Fire Chief Fire supervisor Fire brigade Shift Supervisor Security Officer Security Supervisor Security control room Mechanical supervisor Electrical supervisor Instrument supervisor Clinic

10.

340 5594 03 874 3009 03 874 3006 357 7111 341 0615 341 5485 03 858 6990

37 38 34 28 12 11 34 27 06 23 10 24 09

What are the important Radio Numbers of the other department? Mechanical Sr. technician Instrument Sr. technician Electrical Supervisor /Technician Unit 100/200/300 Unit 400/700 Unit 500/600 Unit 800 Unit 900 Lab Technician Weigh bridge/Loading area operator

11.

Radio: which mode (group) is used during emergency? Hub # 4.

12.

17 24 10/46 19 15 18 13 26 33 41/39

Where is our Emergency Assembling point?

Ø Opposite to Fire Station Ø Near Administration building 13.

What is an accident? Accident is an unplanned, unexpected incident, which causes damage equipment or life or to both.

14.

What are the basic causes of an accident? The basic causes for an accident are unsafe act (88%), unsafe condition (10%), and natural calamities (2%) personal and proximate (adjacent) causes.

15.

What is reportable accident? If any employee meets with an accident, he should be able to report for duty within 48 hrs from the date of the accident and if not, the accident is termed as Reportable Accident (Lost time Accident).

16.

How do we prevent accidents? Learn and practice SOP & SSP procedures. Practicing & maintaining good house keeping. Reporting unsafe conditions through IR.

17.

What is the importance of accident Investigation? It aims at the objective evaluation of all facts, statements, opinions and related information and action plan to prevent or to control similar occurrences.

18.

What is lost time accident? Should an injured person remain away as a result of accident for more than a day (excluding the day of accident and the day of reporting), it is treated as lost time accident.

19.

What is Emergency planning?

Emergency Planning is nothing but a documented sequence of events to be followed in case of emergencies like fire, explosion, toxic material release etc. The documents clearly specifies whom to do what during emergencies and duties and responsibilities of all those who are involved in the operation and maintenance of the Plants. 20.

Why Emergency Response planning & Mock exercises are important? All major accident hazard units should have an Emergency Response Plan and regular mock exercises have to be carried out on the plan so that any shortcomings that are observed can be overcome.

21.

What are the types of Emergency planning? Ø On-site Emergency Planning Ø Off- site Emergency Planning.

22.

What is an on-site Emergency? On-site emergency: Negligible effect to neighbor industries from our plant premises and that can be controlled by internal facilities and resources.

23.

What is an off-site Emergency? Off-site emergency: Emergency inside our plant premises affect the neighboring industries and would require substantial assistance and coordination from nearby industries and others like JAMA’A, Police, hospitals, Royal Commission etc.,

24.

What is JAMA’A? What is the abbreviation of JAMA’A? JAMA’A: is an association to help and assist affected industry during emergency. JAMA’A: Jubail Area Mutual Aid Association.

25.

What is incident? Unplanned event result in measurable loss or injury

26.

What is Near miss? Undesired event but did not due to chance or circumstance.

27.

What is unsafe condition? Unsafe condition is the situation in an area where there is some danger for a safe working atmosphere.

28.

Identify the unsafe acts, near miss and unsafe conditions: a. Damaged machine guards Unsafe condition b. Smoking in restricted areas Unsafe act c. Oil or chemical spilled areas Unsafe condition d. Corroded ladder steps Unsafe condition e. Ignoring an oil or chemical spill Unsafe act f. Doing unauthorized work Unsafe act g. Damaged pipeline insulation Unsafe conditions h. Improper vehicle operation Unsafe act i. Broken rail guard Unsafe condition

j. Working on an over head pipe line without scaffolding Unsafe act k. Walking over a process pipeline Unsafe act l. Keeping unused sample bombs not in a correct place. Near miss m. Wear the safety harness but forget to tie the rope. Near miss. n. Playing with DCS key board/Panel switches Unsafe act 29.

Who is the reporting authority for incident? Shift Supervisor.

30.

What is Incident Report (IR)? Incident report is to highlight the unsafe conditions, Unsafe acts, Near Miss and HSE incident in working place and rectify the problem immediately.

31.

What is the purpose of rising Incident Report? Create awareness and educate all through incident report and set right the Near Miss, Unsafe condition, Unsafe work condition into Safe Condition.

PPE (Personal Protective Equipment) 32.

What is PPE s? Personal Protective Equipment.

33.

What are all minimum requirement PPE s for entering the plant?

Safety shoe, Goggles, Helmet and Shirt with full sleeve 34.

What is the purpose of PPE? To protect the human from the hazards.

35.

What is the role of PPE s? Personal Protective Equipments is the barrier between the hazard and the worker. First thing is to improve Safety by engineering Design and controls.

36.

What are the types of PPE s? There are 2 types: 1. Respiratory Protective type. 2. Non-respiratory Protective type.

37.

What are the Respiratory Protective Equipments? Ø Continuous air supplied Respirators (On-Line Respirators) Ø Self Contained Breathing Apparatus Ø Canister Masks etc.,

38.

What are the Non-respiratory Protective Equipments? Head

–

Helmet, Hood

Face

–

Face shield, Welding shield, Asbestos hood, PVC hood.

Eyes

–

Goggles, Gas cutting goggles, Arc welding goggles.

Ear

-

Ear plug, Ear muffs.

Hand

-

Cotton, PVC, Leather, Asbestos gloves, electrical Gloves.

Body

-

Fire resistance uniform, Apron (leather, asbestos,

PVC), Overall suits, Lead apron, Safety belt, Bunker Gear (Fire suit)

39.

Leg

-

Safety shoe, boots

Nose

-

Dust respirator (cloth, vinyl type)

What is Bunker Gear? Bunker gear provides thermal protection from radiant heat, as well as thermal protection from conductivity/convection during fire fighting.

40.

What is Dust? How do they enter human body? Dusts are minute particles mainly classified into Respirable and Nonrespirable dusts. Dusts that are less than 10 microns in size are respirable dusts. Dusts mainly gain entry in to human system by inhalation, skin adsorption and ingestion (Oral Consumption)

41.

What are the effects of heat? Heat results in heat stress. It also result in heat stroke, heat exhaustion, heat cramps, dehydration, heat fatigue and loss of emotional control etc.,

42.

How to prevent Heat stress? Ø Intake adequate fluid and salt. Ø Wear proper protective and light colored clothing. Ø Avoid caffeinated drinks and heavy meals.

43.

What are the Weather categories and its working condition when atmosphere humidity is more? Weather category 0

-

Continuous work outside

Weather category 1

-

75% work outside (each hour)

Weather category 2

-

50% work outside (each hour)

44.

Weather category 3

-

25% work outside (each hour)

Weather category 4

-

No work outside (otherwise no emergency)

Where will we use face shield? In heaters to view flame condition and other areas in which grinding, chipping, cutting, and breaking or drilling work carry on.

45.

Where will we use chemical splash suit? Tasks include breaking of steam line, lines containing hazardous chemical and line having fluid more than 49oC (1200F) temperature.

46.

Which PPE will be used to protect hand? Gloves

47.

Which glove is suitable for acid/caustic handling? PVC rubber gloves

48.

Which glove is suitable for Benzene handling? PVC rubber gloves

49.

How noise can be controlled? Solid foundation of machines & use of rubber padding, proper maintenance of machine, suitable sound absorbers, using of acoustic/sound proof construction boards and use of hearing protection like Ear Muffs and Ear Plugs etc.,

50.

When and where will you use hearing protection? During steam blowing and Area having sound more than 85 dBA. Example: Compressor area

51.

Which PPE will be used as hearing protection? Ear plug & ear muffler

52.

How will the underground obstacles be identified?

By probing, utilizing special instruments 53.

What is the minimum height required for body harness? 1.5 meter (5 feet)

54.

Why barricade is needed around job working area? To warn and prevent personal and vehicle entry into a potential hazardous or restricted area

55.

Which type of barricade tape will be used to decline an area not to enter? Red and white with Danger sign

56.

Which type of tape used to decline an area may enter with caution? Yellow and black with Caution sign.

57.

What type of barricade will be used for radiography or X ray? Barricade tape with magenta and yellow color giving signs reading Caution

58.

What is your first action if you see a fire? Ø Inform to CCR or Supervisor through Radio. Ø Break Fire Manual Call Point. Ø Call others for help. Ø Isolate process side after getting clearance from CCR. Ø Try to extinguish the fire if it is small or initial stage.

59.

Which type of alarm indicates fire? long Sound for 25 second with 60 second cycle

60.

Which type of alarm indicates gas release? Continuous long (HF) and short sound (LF) for 60 sec

61.

Which type of alarm indicates All clear?

Lengthy single long sound for 60 sec 62.

What is the role of operator during the Emergency? Remain calm. Stop all the work and evacuate the workers from the plant area. Terminate all the work permits and evacuate the confined space. Follow ERT leaders’ instruction. Shut down all ignition sources.

63.

How will you communicate during emergencies? Through radio, Manual calls station and phone.

WORK PERMIT SYSTEM 64.

What is work permit? Work permit is a written document describing the work to be carried out, the precautions to be taken, the preparation made and with the signature of the employees connected with (and responsible for) carrying out the work.

65.

What are the advantages of work permit system? Work permit system is practiced and enforced to make sure all the jobs were done in safe manner. Protect the human being. Safe guard the plant equipment & environmental. Eliminate and reduce fire and accidents.

66.

What are the permits systems following in GFPC?

Ø Cold work Ø Hot work Ø Confined Space Ø Excavation work and Ø Vehicle entry 67.

What is JSA? JSA: Job Safety Analysis. Safety evaluation will be done before issuing permit with receiver.

68.

What is the purpose of JSA? To protect the employees from injury by identifying High Potential Hazards and minimize/control the risk of harm to the working crew, others and environment while performing the job.

69.

70.

What are the roles of permit issuer? Ø

Understanding the job.

Ø

Do JSA completion with receiver.

Ø

Rise the permit.

Ø

Execute the permit.

Ø

Monitor the job in 2 hrs once.

After completing the maintenance job who will be the responsible for housekeeping? Work group representative (Receiver)

71.

Who will prepare JSA? Receiver (Work group representative)

72.

What is Take-two ?

‘Take-Two’ means to take two minutes before starting any job to think about (thinking before acting): T – ‘Talk’ about the upcoming job A – ‘Actions’ decide what actions will be needed. K - ‘Knowledge’ – decide what knowledge is needed. E - ‘Equipment’ – decide what equipment is needed. 73.

What is the purpose of Take-Two ? The ‘Take- Two’ method is used to help employees to think and implement safety precautions before any job is started.

74.

What is LMRA? Last Minute Risk Assessment.

75.

Before closing the permit what is the role of Operator? Check the following: Job completion. Area cleaned. Locks provided by the receivers all removed. Close the permit after signing maintenance person.

76.

Why approval form is needed for excavation permit? To ensure excavation area underground free of Fire Water Piping, Process piping & live electrical cable.

77.

Whose signatures required for excavation (permit) approval form? §

Engineering representative

§

Safety representative

§

Contract representative

§

Shift Supervisor

78.

Whose signatures required for confined space entry permit? Shift Supervisor Area operator Receiver Engineering representative if any excavation job

79.

80.

Whose signatures required for hot work permit? §

Issuer

§

Receiver

§

Shift supervisor

§

Area Operator

Whose signatures required for excavation permit? Shift Supervisor Receiver Area Operator

81.

Who will approve blind list for confined space? Shift supervisor

82.

What is meant by Electrical Lock out? Positive Isolation of electrical breaker, locking and tagging by operator and maintenance team before commencing the job is called Lock Out.

83.

What is the purpose of Electrical Lock out? To safeguard employees while working on electrically powered equipment or electrical circuits from unexpected startup of equipment or energizing of circuits.

84.

What is the color of operation s Do not operate tag?

“Do not operate” tag in Red and white color 85.

What is the color of maintenance tag for electrical lockout? “Do not operate” tag in orange color.

86.

Who will energize and De-energize 4.18 KV Motors? Electrical technician will energize and De-energize the Motors in presence of Area Operator.

87.

What is the color of Maintenance lock for Lock out system? Blue.

88.

What is the color of Contractor s lock for electrical lock out system? Yellow.

89.

What is the color of Electrical lock for electrical lock out system? Red.

90.

If the work carried out below 50V, require any lock out? Not required lock out.

91.

When will operator remove the lock out? ü After finishing the job. ü After closing the permit. ü After removing the maintenance lock.

92.

Maintenance lock can be removed without completing the job? Maintenance lock can be removed at shift end without completing the job. Next shift person will put another lock and continue the job. Until operator’s lock should be in lock out condition.

HIGH ELEVATION JOB

93.

What is High elevation job? Any job which is done above 1.5 meters from work place level will be a high elevation job. Example: painting in pipe racks, provision of scaffolding over fixed platform in a vessel of column.

94.

What is scaffolding? Scaffolding is a temporary frame work used to support people and material in the construction or repair works in the industries and constructing building works..

95.

What are the hazards of working at heights? Ø Fall of a person Ø Fall of material Ø Falling at the same level Ø Collapse of structures Ø Damage of equipment etc. Ø Throwing or dropping material from top.

96.

What are the PPE s used for high elevation job? Safety Harness Rope grab Vertical fall arrestor, horizontal fall arrestor Crawling board Pipe grabs (manic roach)

97.

How long scaffolding inspection can be carried out? On completion. Every 15 days.

After alteration. After bad weather. 98.

What is the maximum gap between scaffolding platform and work surface? 500mm.

99.

Who will authorized for scaffolding inspection? Scaffolding inspector.

100.

What is the ladder safety rule? For every four meter of height of a ladder the base distance should be meter 4:1

101.

What are the Hazards when climbing ladders? Lack of Awareness Lapse of Concentration Slipping and tripping Over balancing Ladder Instability Rungs failing

102.

What type of safety equipment we should use if we go outside the railing around the platform? Safety belt.

103.

What is the function and purpose of pipe line insulation? Pipeline insulation protects person from very hot and very cold pipes.

104.

Before Radiation test, what are the precautions to be taken? Get the permit.

Evacuate the persons nearby. Stopping the other job nearby. Barricade the area with warning tags. Blinking light at night time.

HOSE 105.

Why Hose pressure test carried out? To check the stability of the hose.

106.

What is the test pressure of hose? Test pressure 1.5 times of MAWP (Maximum allowable Working Pressure) specified by the vendor.

107.

What is the color code indicate in the hose corner? Indicates whether hose has been pressure tested at particular period. (Normally we are conducting pressure test twice in a year)

108.

What is White color code indicates? Pressure tested for 1st six months

109.

What is red color code indicates? Pressure tested for 2nd six months.

110.

What are the color codes for Hoses used in GFPC? What is the function? Ø Blue color for Oxygen. Ø Red color hose for Acetylene Ø Orange for Propane. Ø Black color hose for utility purpose (plant air, water, IA, steam)

Ø Yellow color hose for Nitrogen handling 111.

Why Yellow color hose used only for Nitrogen handling? To aware all and avoid accidently using nitrogen for other uses. Nitrogen gas is an inert gas and it will dissipate oxygen. Oxygen deficiency is more dangerous for human breathing and lead to death.

112.

What are the properties of Nitrogen? Colorless, odorless, inert gas. Boiling point -195.5oC. Freezing point -210oC. Will displace oxygen. Non-combustible.

113.

Whether utility plant air (compressed air) can be used for drying hand and cloth? Should not be used. Compressed air may enter the body through small nicks and cuts, if any, and cause stoppage of blood flow, clotting etc – which may have serious consequences.

114.

Why Nitrogen gas is called as Silent Killer ? It will displace oxygen and causes death.

SAFETY SHOWER 115.

What is the purpose of providing safety shower & eye washer in plant area? Safety shower/eye washer is provided when persons are exposed to chemical material that may cause injury to eyes or body.

116.

If a person exposed to chemical how long will he take shower minimum?

He should used shower for at least min 15 minutes. 117.

What type of water (Raw water, Potable water, DM water) is used in safety shower? Potable water

118.

Why safety shower line is insulated? To prevent hot water discharge.

119.

What is the maximum temperature of Safety shower Water temperature? 40oC

120.

What is the temperature range of safety shower water? 15 – 35oC

121.

Incidents to be reported before end of the day or shift True

122.

Excavation work permit required approval plan True

123.

Hot work permit is not extendable after emergency True

124.

Cold work permit is extendable after emergency True

125.

JSA prepared by Shift Supervisor False (By Receiver)

126.

Owning area representative is mechanical technician False (Field Operator)

127.

Area with White and red tape barricade is allowable to be entered

False (not to enter) 128.

Safety representative signature is required for all Hot work permits False

129.

Safety representative signature is required for a Confined space permit False

130.

PVC gloves is suitable for steam service False (Asbestos, Leather)

131.

Confined space permit required for open sumps having more than 1.6M depth True

132.

480V power motor energizing/de energizing will be done by operator True

133.

Approved staircase and grating need body harness/safety belt. False (Not approved stair case, scaffolding having minimum height 1.5M height)

134.

Red color tape barricading for caution and yellow color tape for Danger”. False (Red for Danger and Yellow for Caution)

135.

Permit receiver copy will be displayed on work location True

136.

Confined space entry require safety attendant Yes

137.

What is a cold Job? A job where there is no source of ignition.

138.

Name some of the cold jobs in the petrochemical industries? Pump, Compressor repair Strainer cleaning Motor repairs Changing of gaskets, valves, leak arresting etc., Valve gland packing changing Blinding Scaffolding work

139.

What is a hot job? A job in which a source of ignition can be present.

140.

Name some of the hot jobs in the petrochemical industries? Welding Cutting Grinding, Stress relieving, Hot-tapping, Drilling, Chipping, Operation of vehicles and Welding machine, etc,

141.

What are the types of hot work? 2 types:

142.

Open flame and non-flame

What is open flame and non-flame hot works? Give examples:

Open flame hot work: •

Gas cutting & welding.

Non-flame Hot work jobs: Grinding Chipping Concrete cutting Running IC engine Vehicle entry Jobs in restricted area Radiography Taking camera and video Electric soldering Working in electrical more than 50V. 143.

What are the basic steps in preparing a pump for a cold job such as mech. Seal repair, strainer cleaning etc.,? Isolate the pump by closing the valves. Put ‘Do not operate’ tags in the valves. Depressurize through the casing vent and keep the vent wide open. Drain the pump through the casing vent and keep the drain wide open. Take electrical lock out. Release the job to the maintenance.

144.

How do you prepare a Column or Vessel for entry? Ø Prepare lists and procedures Ø Decommission the vessel as per procedure Ø Isolate by blocking valves Ø Depressurize to flare and block off. Ø Depressurize to atmosphere at top vents.

Ø Introduce steam. (Avoid pulling vacuum) Ø Drain under positive pressure of steam. Ø Steam out thoroughly. Ø Install blinds under slight positive pressure of steam. Ø Blind off steam after re steaming if necessary. Ø Open man ways. Ø Water washes the tower. Ø Fix air eductors. Ø Anticipate pyrophoric iron sulfide. Ø Check for gases and oxygen% Ø Inspect the tower yourself and ensure it is cool enough and the internals are safe to stand on. Ø Prepare entry permit. Note down special instructions if any. Ø Issue permit for entry. 145.

What are the basic steps involved in the preparation for an entry into a furnace? Decommission the furnace as per normal procedure. Open the individual burner’s damper fully. Open the furnace’s stack damper fully. Isolate the furnace by blinding the coil. Open fire box man ways Check O2 inside the furnace from outside. Issue the permit.

146.

What are the preparations for a hot work? Internal Preparation: Isolate by closing valves. Depressurize & drain. Steam-out to expel hydrocarbons. Isolate by blinding. Wedge open blinds if required re-steam Gas test for inflammable. External Preparation: Cleaning up the area. Stop any hydro carbon leaks in the vicinity. Cover sewers effectively. Gas test. Water spray and other firefighting equipment have to be ready. Use steam to purge any gas leak that cannot be tightened. Place firefighting equipment for emergency use. Organize the fire watch. Ensure the welding machine properly earthed. Ensure cylinder opening key on its place. Fill up the fire permit form properly. Ensure all concerned authorities sign the permit. Hence, external preparations are necessary as in the case of a hot job & the movement should be supervised by the operating personnel.

147.

Why the same permit is used for "Vessel Entry" as well as "Hot jobs"? The preparations are more or less the same for both jobs.

148.

What is the gas test difference between "Vessel Entries" as well a "Hot jobs"? For vessel entry we have to check gas test for O2. For hot jobs we have to check gas test for LEL.

149.

Is a hot job safe once it has begun? No. Dangerous situation may develop due to various reasons.

150.

How often the gas test be done? Normally gas test is made within one hour of the beginning of the work. Re test may be necessary in some locations and the frequency will be decided by the supervisor.

151.

What are the values of gas test? Gas (LEL) Oxygen CO

152.

0% 19.5 to 21.5% 5%

Is hot permit required for ordinary hand tools which produce sparks occasionally? No. These sparks are considered too weak for an ignition.

153.

Why entry of vehicles is restricted under a hot permit system? The exhaust of vehicles often spit out red-hot carbon or scale sparks, which can cause a fire in a plant.

154.

What is the maximum speed of the vehicles inside the plant? 30 kmph.

155.

Who is the issuing authority of a hot permit? The Shift supervisor.

156.

Who is the performing authority? Shift supervisor.

157.

Who will request the vehicle entry permit? Maintenance, Operation, Project representative Driver.

EXCAVATION 158.

What is an excavation permit? It is a permit to excavate for laying pipeline and cables or digging for foundation etc.,

159.

What is the purpose of Excavation procedure? To protect personal and plant equipment from hazards that might occur as result of excavating in any plant location.

160.

What are the hazards anticipate during excavation job? Damage or failure of underground pipes and electrical cables. Tripping slipping and falling. Injury from falling material. Collapsing due to cave in. Possibility of explosive, flammable, Suffocation due to toxic or oxygen deficient atmosphere in excavation.

161.

Who is the initiator of Excavation permit? Technical Department Engineer Project Engineer/Representative Maintenance supervisor Maintenance Specialist

Project site Representative Contractor Engineer responsible for excavation. 162.

Who all should sign an excavation permit for authorization? Electrical Engineer Mechanical Engineer Civil Engineer Shift Supervisor Area Operator after completing gas test and working place fulfilling conditions mentioned in the permit.

163.

Who issues an excavation permit and how? The shift supervisor is to give a cold permit on basis of an approved excavation permit. The excavation permit is made in duplicate and one copy is retained in the plant till the job is completed.

CONFINED SPACE 164.

What is confined space entry? A place in which employee is going to enter and perform work or inspect. Confined has a limitation for entry and exit and it is not designed for continuous human occupancy.

165.

Give some examples for confined space? Vessel Tanks Furnaces Reactors Fin fan coolers Boilers

Pit and excavation pit have more than 1.2 m depth Man holes Sewers Hoppers Vaults (eq. 900 V 01) Pipes Trenches 166.

What to do check before entered into the confined space? Oxygen test to be carried out.

167.

What is the Oxygen content inside the confined space? 20.8%

168.

At what oxygen level a person not allowed to inside the confined space? Below 19.5% O2 not permitted to inside the confined space.

169.

What are the potential hazards in the confined spaces? o Oxygen Deficiency (