Hazardous Area Timefiller Pt 2

Hazardous Area Timefiller Pt 2

Question 1 a – Ga b – Gb c – Gc d – Gd
An explosive gas/air mixture is ‘Likely’ to occur, what Equipment Protection Level: a – Ga b – Gb c – Gc d – Gd

Answer 1 a – Ga b – Gb c – Gc d – Gd
An explosive gas/air mixture is ‘Likely’ to occur, what Equipment Protection Level: a – Ga b – Gb c – Gc d – Gd

Question 2 Zone 1 E.P.L.?

Answer 2 Zone 1 Gb

Question 3 EPL Ga Category?

Answer 3 EPL Ga 1G

Question 4 Category 1G Zone?

Answer 4 Category 1G Zone 0

Question 5 Zone 2 EPL?

Answer 5 Zone 2 Gc

Question 6 Category 2G EPL?

Answer 6 Category 2G Gb

Question 7 EPL Gc Category?

Answer 7 EPL Gc 3G

Which Atex Directive removes
Question 8 Which Atex Directive removes ‘Barriers to Trade’? a – Atex 137? b – Atex 95? c – Atex 98? d – Atex 60079?

Which Atex Directive removes
Answer 8 Which Atex Directive removes ‘Barriers to Trade’? a – Atex 137? b – Atex 95? c – Atex 98? d – Atex 60079?

What are the symbols for a Zone 0 area on a hazardous Area Drawing
Question 10 What are the symbols for a Zone 0 area on a hazardous Area Drawing a – Small Circles b – Hashed lines at 45degrees c – Single lines at 45degrees d – Symbols shown on the drawing key

What are the symbols for a Zone 0 area on a hazardous Area Drawing
Answer 10 What are the symbols for a Zone 0 area on a hazardous Area Drawing a – Small Circles b – Hashed lines at 45degrees c – Single lines at 45degrees d – Symbols shown on the drawing key

Question 11 Which part of the Standard covers Installation? a – BS EN – 10 b – BS EN – 14 c – BS EN – 17 d – BS EN – 19

Answer 11 Which part of the Standard covers Installation? a – BS EN – 10 b – BS EN – 14 c – BS EN – 17 d – BS EN – 19

Question 12 Which of the following would I require knowledge of to work in a Hazardous Area? a – How to draw an Area Classification Drawing b – How to identify Protection Types c – How to write a Gas Free Certificate d – How to write a Permit to Work

Answer 12 Which of the following would I require knowledge of to work in a Hazardous Area? a – How to draw an Area Classification Drawing b – How to identify Protection Types c – How to write a Gas Free Certificate d – How to write a Permit to Work

What does D.S.E.A.R. stand for?
Question 13 What does D.S.E.A.R. stand for? a – Dangerous Site Electrical Arbitrary Rules b – Dangerous Substances Explanations And Regulations c – Dangerous Substances & Explosive Atmospheres Regulations d – Dangerous Substances & Explosive Atmospheres Rules

What does D.S.E.A.R. stand for?
Answer 13 What does D.S.E.A.R. stand for? a – Dangerous Site Electrical Arbitrary Rules b – Dangerous Substances Explanations And Regulations c – Dangerous Substances & Explosive Atmospheres Regulations d – Dangerous Substances & Explosive Atmospheres Rules

Question 14 What does E.P.L. stand for? a – Electrical Protection Level b – Equipment Protection Level c – Extreme Protection Level d – External Protection Level

Answer 14 What does E.P.L. stand for? a – Electrical Protection Level b – Equipment Protection Level c – Extreme Protection Level d – External Protection Level

Which letters internationally correspond to
Question 15 Which letters internationally correspond to Atex Categories? x y z A B C a b c I E C

Which letters internationally correspond to
Answer 15 Which letters internationally correspond to Atex Categories? x y z A B C a b c EPLs Ga-Gb-Gc I E C

Exercise 2 on Gas Group & Temp. Class
Can the llA T1 motor go into the Acetylene gas/vapour?

Can the llA T1 motor go into the Acetylene gas/vapour? Acetylene llC Ign. Temp. 305°C

Can the llC T1 motor go into the Ethylene gas/vapour?

Can the llC T1 motor go into the Ethylene gas/vapour? Ethylene llB Ign. Temp. 425°C

Can the llC T6 motor go into the Hydrogen gas/vapour?

Can the llC T6 motor go into the Hydrogen gas/vapour? Hydrogen llC Ign. Temp. 560°C

Can the llB T2 motor go into the Cyclohexane gas/vapour (Ign. Temp. 259 C)

Can the llB T2 motor go into the Cyclohexane gas/vapour Cyclohexane llA Ign. Temp. 259°C

Question 1B Hydrogen Gas Group?

Answer 1B Hydrogen - llC

Petrol/Gasoline Gas Group?
Question 2B Petrol/Gasoline Gas Group?

Answer 2B Petrol/Gasoline - llA

Question 3B Ethylene Gas Group?

Answer 3B Ethylene - llB

Question 4B Propane Gas Group?

Answer 4B Propane - llA

Hydrogen Sulphide Gas Group?
Question 5B Hydrogen Sulphide Gas Group?

Hydrogen Sulphide - llB
Answer 5B Hydrogen Sulphide - llB

Question 6B Acetylene Gas Group?

Answer 6B Acetylene - llC

Question 7B A – Can be used in with llA Gases Only
If the Gas Group BASEEFA marking just has a ll and no A, B or C after it where can it be used? A – Can be used in with llA Gases Only B – Can be used in with llB Gases Only C – Can be used in with llC Gases Only D – Can be used in all Group ll Gas/Vapours

Answer 7B A – Can be used in with llA Gases Only
If the Gas Group BASEEFA marking just has a ll and no A, B or C after it where can it be used? A – Can be used in with llA Gases Only B – Can be used in with llB Gases Only C – Can be used in with llC Gases Only D – Can be used in all Group ll Gas/Vapours

Question 8B Which Statement is true? A – I can put gas group llA into gas group llB area B – I can put gas group llB into gas group llC area C – I can put gas group llA into gas group llC area D – I can put gas group llC into gas group llA area

Answer 8B Which Statement is true? A – I can put gas group llA into gas group llB area B – I can put gas group llB into gas group llC area C – I can put gas group llA into gas group llC area D – I can put gas group llC into gas group llA area

Question 1C - What are the three items for Combustion?
1 2 3

Answer 1C - What are the three items for Combustion?
1 2 3

How many Temperature Classes are there?
Question 2C How many Temperature Classes are there?

How many Temperature Classes are there?
Answer 2C How many Temperature Classes are there?

What Temperature are the following:
Question 3C What Temperature are the following: a – T1 b – T c – T3

What Temperature are the following:
Answer 3C What Temperature are the following: a – T1 – 450 b – T6 – c – T3 – 200

Question 4C What is the temperature at which a gas/air mixture will ignite spontaneously? a – Boiling Point? b – Flash Point? c – Ignition Temperature? d – Flash-off Temperature?

Answer 4C a – Boiling Point?
What is the temperature at which a gas/air mixture will ignite spontaneously? a – Boiling Point? b – Flash Point? c – Ignition Temperature? d – Flash-off temperature?

What is meant by Temperature Class T1 – T6?
Question 5C What is meant by Temperature Class T1 – T6? a – The surface temperature never go over the ‘T’ class stated on it under any conditions! b – The surface temperature will always reach the ‘T’ class stated on it under normal and specified fault conditions. c – The relevant surface temperature will never go over the ‘T’ class stated on it under normal and specified fault

What is meant by Temperature Class T1 – T6?
Answer 5C What is meant by Temperature Class T1 – T6? a – The surface temperature never go over the ‘T’ class stated on it under any conditions! b – The surface temperature will always reach the ‘T’ class stated on it under normal and specified fault conditions. c – The relevant surface temperature will never go over the ‘T’ class stated on it under normal and specified fault

Question 6C -30oC to +40oC -10oC to +50oC -20oC to +40oC
What is the Ambient Temperature for T1 – T6 -30oC to +40oC -10oC to +50oC -20oC to +40oC -10 C to +40 C

Answer 6C -30oC to +40oC -10oC to +50oC -20oC to +40oC -10 C to +40 C
What is the Ambient Temperature for T1 – T6 -30oC to +40oC -10oC to +50oC -20oC to +40oC -10 C to +40 C

Question 8C a – Boiling Point?
What is the temperature at which a gas/air mixture will give off sufficient fumes so can be ignited by an external ignition source? a – Boiling Point? b – Flash Point? c – Ignition Temperature? d – Flash off Temperature?

Answer 8C What is the temperature at which a gas/air mixture will give off sufficient fumes so can be ignited by an external ignition source? a – Boiling Point? b – Flash Point? c – Ignition Temperature? d – Flash off Temperature?

Which one below is correct?
Question 17 Which one below is correct? Zone 0 / Ga / 1D Zone 2 / Gb / 3G Zone 1 / Gb / 2G Zone 0 / Gc / 1G

Which one below is correct?
Answer 17 Which one below is correct? Zone 0 / Ga / 1D Zone 2 / Gb / 3G Zone 1 / Gb / 2G Zone 0 / Gc / 1G

Question 1D What is ‘Mark’ No. 1

The Atex Explosion Protection Mark
Answer 1D The Atex Explosion Protection Mark

Question 5D What is ‘Sign’ No. 5

To warn People they are Entering a Hazardous Area
Answer 5D To warn People they are Entering a Hazardous Area

Question 2E Which Zones of the following can EExd llA T6 go into:
a – Zone 0 llA T b – Zone 2 llB T4 c – Zone 2 llA T d – Zone 20 lllA T3 e – Zone 1 llC T f – Zone 0 llC T6

Answer 2E Which Zones of the following can EExd llA T6 go into:

Question 6E Before I put power onto a Flameproof enclosure what is the minimum number of bolts I must put in the cover? 1 – Every other bolt spanner tight 2 – One bolt opposite the hinge spanner tight 3 – All bolts spanner tight 4 – One bolt at each corner spanner tight

Answer 6E Before I put power onto a Flameproof enclosure what is the minimum number of bolts I must put in the cover? 1 – Every other bolt spanner tight 2 – One bolt opposite the hinge spanner tight 3 – All bolts and spanner tight 4 – One bolt at each corner spanner tight

Question 7E What can I put on the flameproof faces of EExd equipment to improve the IP? 1 – Non setting grease bearing textile tape 2 – Non setting grease 3 – Hard setting resin 4 – Nothing as EExd equipment has good IP

Answer 7E What can I put on the flameproof faces of EExd equipment to improve the IP? 1 – Non setting grease bearing textile tape 2 – Non setting grease 3 – Hard setting resin 4 – Nothing as EExd equipment has good IP

Question 8E What is the Minimum IP protection for EExe equipment?

Answer 8E What is the Minimum IP protection for 2 – IP44 3 – IP54
EExe equipment? 1 – IP20 2 – IP44 3 – IP54 4 – IP68

Question 1E Which Zones of the following can EExd llC T6 go into:

Answer 1E Which Zones of the following can EExd llC T6 go into:

Question 2E Which Zones of the following can EExd llA T6 go into:

Answer 2E Which Zones of the following can EExd llA T6 go into:

Question 3E Which Zones of the following can EExia llC T6 go into:
a – Zone 0 llA T b – Zone 2 llB T4 c – Zone 2 llA T d – Zone 20 lllC T3 e – Zone 1 llC T f – Zone 0 llC T6

Answer 3E Which Zones of the following can EExia llC T6 go into:
a – Zone 0 llA T b – Zone 2 llB T4 c – Zone 2 llA T d – Zone 20 lllC T3 e – Zone 1 llC T f – Zone 0 llC T6

Question 4E Which Zones of the following can EExnR llA T6 go into:

Answer 4E Which Zones of the following can EExnR llA T6 go into:

Question 5E Which Zones of the following can EExde llC T6 go into:
a – Zone 0 llA T b – Zone 2 llB T4 c – Zone 2 llC T d – Zone 20 lllC T6 e – Zone 1 llC T f – Zone 0 llC T6

Answer 5E Which Zones of the following can EExde llC T6 go into:
a – Zone 0 llA T b – Zone 2 llB T4 c – Zone 2 llC T d – Zone 20 lllC T6 e – Zone 1 llC T f – Zone 0 llC T6

Question 9E EExia in brackets - [EExia] Does it mean: a – The equipment is ‘Intrinsically Safe’? b – The equipment is ‘Associated Equipment’? c – The equipment cannot be installed in the Hazardous Area?

Answer 9E EExia in brackets - [EExia] Does it mean: a – The equipment is ‘Intrinsically Safe’? b – The equipment is ‘Associated Equipment’? c – The equipment cannot be installed in the Hazardous Area?

Question 10E What Dimensions are the following; Distance from Live Parts of IS Circuits to Non-IS Terminals?

Answer 10E What Dimensions are the following; Distance from Live Parts of IS Circuits to Non-IS Terminals? 50mm

Question 11E What Dimensions are the following; Distance from Live Parts of IS Circuits to Earthed Metal?

Answer 11E What Dimensions are the following; Distance from Live Parts of IS Circuits to Earthed Metal? 3mm

Question 12E What Dimensions are the following;
Distance from Live Parts of IS Circuits to other IS Circuits?

Answer 12E What Dimensions are the following; Distance from Live Parts of IS Circuits to other IS Circuits? 6mm

Question 13E Where should the screen be connected on an IS System? 1 – To Earth at the Hazardous Area? 2 – To Clean Earth at the Non-Hazardous Area? 3 – To Dirty Earth at the Non-Hazardous Area? 4 – As shown on the Loop / Hook up Diagram?

Answer 13E Where should the screen be connected on an IS System? 1 – To Earth at the Hazardous Area? 2 – To Clean Earth at the Non-Hazardous Area? 3 – To Dirty Earth at the Non-Hazardous Area? 4 – As shown on the Loop / Hook up Diagram?

Question 14E On an EExnR Bulkhead Fitting an IP Washer is: 1 – Not required at all 2 – Fitted between the Gland and Earth Tag 3 – Fitted next to the Fitting

Answer 14E On an EExnR Bulkhead Fitting an IP Washer is: 1 – Not required at all 2 – Fitted between the Gland and Earth Tag 3 – Fitted next to the Fitting

Question 16E 1 – EEx d 2 – EEx m 3 – EEx p 4 – EEx q
Which protection below allows the gas to enter without compromising safety: 1 – EEx d 2 – EEx m 3 – EEx p 4 – EEx q

Answer 16E 1 – EEx d Flameproof! 2 – EEx m 3 – EEx p 4 – EEx q
Which protection below allows the gas to enter without compromising safety: 1 – EEx d Flameproof! 2 – EEx m 3 – EEx p 4 – EEx q

Question 17E 1 – EEx d 2 – EEx p 3 – EEx i 4 – EEx n
Which protection below is specifically designed to keep the gas out: 1 – EEx d 2 – EEx p 3 – EEx i 4 – EEx n

Answer 17E 1 – EEx d 2 – EEx p Pressurisation! 3 – EEx i 4 – EEx n
Which protection below is specifically designed to keep the gas out: 1 – EEx d 2 – EEx p Pressurisation! 3 – EEx i 4 – EEx n

Question 18E 1 – EExnA – EExnB – EExnC – EExnD
Which of the following are the 4 sub-divisions of EEx’n’: 1 – EExnA – EExnB – EExnC – EExnD 2 – EExnV – EExnW – EExnX – EExnY 3 – EExnA – EExnC – EExnL – EExnR 4 – EExno – EExnq – EExne – EExnd

Answer 18E 1 – EExnA – EExnB – EExnC – EExnD
Which of the following are the 4 sub-divisions of EEx’n’: 1 – EExnA – EExnB – EExnC – EExnD 2 – EExnV – EExnW – EExnX – EExnY 3 – EExnA – EExnC – EExnL – EExnR 4 – EExno – EExnq – EExne – EExnd

Question 19E 1 – pw 2 – px 3 – py 4 – pz
Which is the higher Pressurisation Sub-Division? 1 – pw 2 – px 3 – py 4 – pz

Answer 19E Which is the higher Pressurisation Sub-Division? 1 – pw 2 – px 3 – py 4 – pz Zone 1 outside, sparking non classified inside! If Purge is lost then: Auto. Isolation of Electrical Equipment & Alarm

Question 2F Cable sheath & filler Non-Hygroscopic does it mean:
1 – The cable is not round 2 – The cable sheath & filler is not water absorbent 3 – The cable sheath & filler is acid resistant 4 – The cable sheath & filler is impact resistant

Answer 2F Cable sheath & Filler Non-Hygroscopic does it mean:
1 – The cable is not round 2 – The cable sheath & filler is not water absorbent 3 – The cable sheath & filler is acid resistant 4 – The cable sheath & filler is impact resistant

Question 3F Which Statement is true? Intrinsically safe cable has to :
1 – Be Blue 2 – Withstand a 500Volt ac or 750Volt dc test 3 – Be PVC Covered 4 – Withstand a 500Volt ac and 750Volt dc test

Answer 3F Which Statement is true? Intrinsically safe cable has to :
1 – Be Blue 2 – Withstand a 500Volt ac or 750Volt dc test 3 – Be PVC Covered 4 – Withstand a 500Volt ac and 750Volt dc test

Question 6F The cable is limited to 16mm2 minimum if: 1 – It is fibre optic 2 – It is Copper 3 – It is Aluminum 4 – It is Intrinsically safe

Answer 6F The cable is limited to 16mm2 minimum if: 1 – It is fibre optic 2 – It is Copper 3 – It is Aluminum 4 – It is Intrinsically safe

Question 7G What is the least number of threads of a Flameproof gland that have to be inserted into the equipment: 1 – 3 2 – 4 3 – 5 4 – 6

Answer 7G What is the least number of threads of a Flameproof gland that have to be inserted into the equipment: 1 – 3 2 – 4 3 – 5 4 – 6 The equipment has to be 6 threads to allow you to get your 5 on the gland!

Question 9G Which Statement below is NOT true: 1 – Pre-January 2008 I could use an uncertified two seal gland in an EExe Junction Box 2 – Pre-January 2008 I could use an uncertified two seal gland in an EExn/N Junction Box 3 – Pre-January 2008 I could use an uncertified two seal gland in an EExd Junction Box

Answer 9G Which Statement below is NOT true if any: 1 – Pre-January 2008 I could use an uncertified two seal gland in an EExe Junction Box 2 – Pre-January 2008 I could use an uncertified two seal gland in an EExn/N Junction Box 3 – Pre-January 2008 I could use an uncertified two seal gland in an EExd Junction Box It was never the case that uncertified glands could be used in Flameproof equipment!

Question 10G 1 – By putting an earth clip on the plastic
How do we deal with the risk of static on plastic covered cable tray? 1 – By putting an earth clip on the plastic 2 – By putting in the largest size tray possible 3 – By limiting the surface area of the tray 4 – Not taking any action at all

Answer 10G 1 – By putting an earth clip on the plastic
How do we deal with the risk of static on plastic covered cable tray? 1 – By putting an earth clip on the plastic 2 – By putting in the largest size tray possible 3 – By limiting the surface area of the tray 4 – Not taking any action at all

Question 11G What Insulation Resistance does plastic covered cable tray not have to exceed? 1 – 1 Micro-Ohm 2 – 1 Ohm 3 – 1 Meg-Ohm 4 – 1 Gig-Ohm

Answer 11G What Insulation Resistance does plastic covered cable tray not have to exceed? 1 – 1 Micro-Ohm 2 – 1 Ohm 3 – 1 Meg-Ohm 4 – 1 Gig-Ohm

Question 3H a – Visual b – Initial c – Sample d – Close
When Commissioning Equipment before it is brought into service which Type of Inspection? a – Visual b – Initial c – Sample d – Close

Answer 3H a – Visual b – Initial c – Sample d – Close
When Commissioning Equipment before it is brought into service which Type of Inspection? a – Visual b – Initial c – Sample d – Close

Question 4H What would I have with me on a Lighting Circuit Visual Inspection? 1 – The Lighting Schematic Diagram 2 – The Area Classification Drawing 3 – The Manufacturer’s Equipment Data Sheets 4 – The Light Fitting Repair Manual

Answer 4H What would I have with me on a Lighting Circuit Visual Inspection? 1 – The Lighting Schematic Diagram 2 – The Area Classification Drawing 3 – The Manufacturer’s Equipment Data Sheets 4 – The Light Fitting Repair Manual

Question 5H Which inspection below would tools NOT be required? 1 – Visual 2 – Close 3 – Detailed 4 – Initial

Answer 5H Which inspection below would tools NOT be required? 1 – Visual 2 – Close 3 – Detailed 4 – Initial You would only have an Area Classification Drawing with you!

Question 6H Which part of the Standard covers Inspections? a – BS EN – 10 b – BS EN – 14 c – BS EN – 17 d – BS EN – 19

Answer 6H Which part of the Standard covers Inspections? a – BS EN – 10 b – BS EN – 14 c – BS EN – 17 d – BS EN – 19

Question 7H Which Grade of inspection would I Isolate, open up and check internal connections? 1 – Visual 2 – Close 3 – Detailed

Answer 7H Which Grade of inspection would I Isolate, open up and check internal connections? 1 – Visual 2 – Close 3 – Detailed

Question 9H Which Grade of inspection would I use tools, but could do it whilst the circuit was live? 1 – Visual 2 – Close 3 – Detailed 4 – Initial

Answer 9H Which Grade of inspection would I use tools, but could do it whilst the circuit was live? 1 – Visual 2 – Close 3 – Detailed 4 – Initial

Question 1I 1 – Be wearing rubber gloves
When you are working live in a Hazardous Area without a gas free certificate, would you: 1 – Be wearing rubber gloves 2 – Be working on 110 Volts or less 3 – Be working on an IS Circuit 4 – Have roped off the area for safety

Answer 1I 1 – Be wearing rubber gloves
When you are working live in a Hazardous Area without a gas free certificate, would you: 1 – Be wearing rubber gloves 2 – Be working on 110 Volts or less 3 – Be working on an IS Circuit 4 – Have roped off the area for safety

Question 2I 1 – Remove the fuse from the distribution board
What is the minimum isolation when working on electrical equipment in a hazardous area: 1 – Remove the fuse from the distribution board 2 – Operation of an on load double pole switch & locked in the off position 3 – Operation of an off load double pole switch & locked in the off position 4 – Operation of a single pole switch & locked in the off position

You must cut the Neutral also to stop Neutral – Earth Sparks!
Answer 2I What is the minimum isolation when working on electrical equipment in a hazardous area: 1 – Remove the fuse from the distribution board 2 – Operation of an on load double pole switch & locked in the off position 3 – Operation of an off load double pole switch & locked in the off position 4 – Operation of a single pole switch & locked in the off position You must cut the Neutral also to stop Neutral – Earth Sparks!

Document Control (This slide may be hidden from your presentation, but is required to be the final slide.) Revision History Document Title: Hazardous Area Timefiller part 2 Revised by: K Knight Approved by: P Clark Document Number: TRPP.37 Revision: A Approval Date: 11/04/16 Revision: Revision Date: Reason for Revision: (Complete Document Change Request, QL02F.01 with details of changes) A 11/04/16 Initial Release B C

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