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Specialist Activities – Pipe Fitting and Welding

Construction Test > Specialist Activities – Pipe Fitting and Welding

You need to answer at least 41 out of 49 questions correctly to pass the Pipe Fitting and Welding Specialist Activities Test. Answers may be reviewed after each question or at the end of the test. Good luck!

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List of questions in above test (quick view). Click question box to reveal correct answer.
1. You are about to begin welding - where should your nearest extinguisher be? Give ONE answer
A By the nearest emergency exit
B Immediately at hand
C No nearer than 15m to the hot works
D Within 500 m
Correct Answer: B Immediately at hand
Explanation: Before beginning hot works you must ensure you have a job specific fire extinguisher at hand.
2. To adhere to the Provision and Use of Work Equipment Regulations, what must be the case regarding dangerous parts of machines? Give ONE answer
A They must be disinfected daily
B They must be guarded, where possible
C They must be removed when not in use
Correct Answer: B They must be guarded, where possible
Explanation: The provision and Use of Work Equipment Regulations stipulate that guards or fences must, where possible, be installed for all dangerous parts of equipment.
3. When using a pipe threading machine, what should be your top safety concern when it comes to your clothing? Give ONE answer
A That is be sufficiently warm
B That it be kept clean of mineral oils
C That it be sufficiently thick
D That it does not get caught in the moving parts
Correct Answer: D That it does not get caught in the moving parts
Explanation: You must be careful to not catch your clothing in the moving parts of the pipe threading machine
4. Where should the safety barrier be put up when using a pipe threading machine? Give ONE answer
A 1 m in either direction of the work
B 30cms in either direction from the work
C Around the full length of the pipe
D No additional safety barrier is required
Correct Answer: C Around the full length of the pipe
Explanation: The safety barrier you put up when using a pipe threading machine must cover the entire length of the pipe.
5. You have finished installing a piece of industrial plant, but it has not yet been commissioned. How should you leave the plant? Give ONE answer
A Lock off all switches and valves
B Lock on all switches and valves
C Lock on all switches and valves, and put up a warning notice
D Plants will always be commissioned before they are installed
Correct Answer: A Lock off all switches and valves
Explanation: Uncommissioned plant that has been successfully installed must be left with all switches and valves locked in the off position.
6. What specific device MUST be fitted when using oxyacetylene equipment? Give ONE answer
A Carbon monoxide detector
B Electrical lock-off
C Flashback arrestor
D Whip check
Correct Answer: C Flashback arrestor
Explanation: Oxyacetylene equipment must be fitted with flashback arrestors.
7. You are about to begin brazing a plumbing pipe with an oxyacetylene torch. Which TWO of the following checks must be carried out in your area? Give TWO answers
A Is it a designated hot works zone?
B Is it free from obstruction?
C Is it free from other people?
D Is it well ventilated?
E Is there ceiling lower than 2.2m?
Correct Answer: B Is it free from obstruction?, D Is it well ventilated?
Explanation: The area in which you carry out oxyacetylene hot works must be free from obstruction and well ventilated.
8. Which of the following colours will an oxyacetylene cylinder be? Give ONE answer
A Cyan
B Dark green
C Maroon
D Peach
Correct Answer: C Maroon
Explanation: Oxyacetylene cylinders are maroon.
9. You have finished using an oxyacetylene cylinder for a welding task. Where should this cannister now be stored? Give ONE answer
A In a flame-proof cage underground
B In a refrigerated compound off site
C In a specialised compound outside
D In an indoors storage warehouse
Correct Answer: C In a specialised compound outside
Explanation: Oxyacetylene cylinders must be stored in a specialised compound outside.
10. You are using oxyacetylene-powered brazing equipment - under what conditions would it be appropriate to place the cylinder on a purpose-built trolley? Give ONE answer
A Under cold conditions
B When the cylinder is at 75% capacity or above
C When the ground is uneven
D Whenever possible
Correct Answer: D Whenever possible
Explanation: Where possible, it is always best to place the oxyacetylene cylinder on a purpose-built trolley whilst using it to power brazing equipment.
11. Which TWO of the following describe the CORRECT placement of an oxyacetylene cylinder whilst in use to power brazing equipment? Give TWO answers
A Horizontal
B Secure
C Turned periodically
D Upright
E Wrapped in insulating material
Correct Answer: B Secure, D Upright
Explanation: The cylinder must be upright and secured when in use.
12. Repairs required on a section of pipe mean you need to use pipe-freezing equipment. Which TWO of the following MUST you ensure you are wearing? Give TWO answers
A Ear protection
B Full face shield
C Gloves
D Long sleeves
E Safety helmet
Correct Answer: C Gloves, D Long sleeves
Explanation: You must ensure no bare skin makes contact with the cold equipment, so ensure you wear gloves and long sleeves.
13. What MUST you read before using pipe-freezing equipment? Give ONE answer
A COSHH assessment
B Insurance policy
C Manufacturer guidelines
D Water company guidelines
Correct Answer: A COSHH assessment
Explanation: You must ensure you read the COSHH assessment before beginning work.
14. Your college begins to approach you with a question whilst you are carrying out pressure testing on a newly installed section of pipe. Are they allowed in the exclusion zone? Give ONE answer
A Only if they are directly involved with the pressure testing
B Only if they are wearing the appropriate PPE
C Only if they get clearance from you
D Only you are allowed in the exclusion zone
Correct Answer: A Only if they are directly involved with the pressure testing
Explanation: Only those involved in pressure testing may enter an exclusion zone.
15. A stretch of pipework used for natural gas services needs to be replaced. Are you permitted to take this job? Give ONE answer
A No, only the service provider can make changes to natural gas pipes
B Yes, if you are a Gas Safe registered engineer
C Yes, if you are an engineer from an F-gas registered company
D Yes, if you have been asked to do so by your supervisor
Correct Answer: B Yes, if you are a Gas Safe registered engineer
Explanation: You must be a Gas Safe registered engineer to install or maintain natural gas pipework.
16. A stretch of newly installed pipework needs to be pressure-tested. Who can carry this out? Give ONE answer
A Anyone on the site
B Only a Gas Safe registered engineer
C Only a competent person
D Only an engineer from the gas company
Correct Answer: C Only a competent person
Explanation: Pressure tests must be carried out by competent persons.
17. Which of the following tools DO require portable appliance testing (PAT)? Check ALL that apply
A 110 volt drill running on mains electricity
B Charging cable for rechargeable drill
C Rechargeable drill running on battery power
D Toaster
Correct Answer: A 110 volt drill running on mains electricity, B Charging cable for rechargeable drill, D Toaster
Explanation: The rechargeable drill itself does not require PAT testing, as it does not run on mains electricity.
18. You are doing submerged arc welding on some pipework inside a cabin - where should you place the LPG cylinder? Give ONE answer
A By a window
B Immediately next to the pipes you are working on
C Outside the cabin
D Within arm's reach
Correct Answer: C Outside the cabin
Explanation: You should place LPG cylinders outside of the cabin.
19. You are tasked with tracing pipework through a commercial building, and see that it goes into a service duct. How should you proceed? Give ONE answer
A Do not continue - consult with your supervisor so a risk assessment can be completed
B Do not continue until you have established for yourself that it is safe to do so
C Equip yourself with a torch and continue
D Find a colleague to spot you as you continue
Correct Answer: A Do not continue - consult with your supervisor so a risk assessment can be completed
Explanation: All work that involves entering a duct must be preceded by a job-specific risk assessment.
20. You notice the arm on the multi-hole imager you are using has become crooked in transit - what should you do? Give ONE answer
A Account for the crookedness in your calculations
B Do not continue to use the tool - mark it as defective and find a replacement
C Replace the rod yourself
D Use your colleague's tool
Correct Answer: B Do not continue to use the tool - mark it as defective and find a replacement
Explanation: Defective tools must be marked as such, and you must not work until you have found a suitable replacement.
21. You are moving an engine-driven generator inside a building to power your equipment - where should the exhaust be positioned? Give ONE answer
A By a window
B Immediately next to your work area
C Outside of the building
D Towards the ceiling
Correct Answer: C Outside of the building
Explanation: Always position the exhaust of engine-driven generators outside of enclosed spaces.
22. Your colleague has deposited an LPG cylinder at the storage compound, and reports that the LPG cylinders are being stored "too close" to the oxygen cylinders. What does this mean? Give ONE answer
A The LPG cylinders and oxygen cylinders are being stored side by side in the same compound
B The LPG cylinders are closer than 1m to the oxygen cylinders
C The LPG cylinders are closer than 3m to the oxygen cylinders
D The LPG cylinders are closer than 5m to the oxygen cylinders
Correct Answer: C The LPG cylinders are closer than 3m to the oxygen cylinders
Explanation: LPG cylinders and oxygen cylinders must not be stored closer than 3m to each other.
23. Which of the following describes a KEY difference between propane and butane equipment? Give ONE answer
A A higher pressure is used for butane equipment
B A higher pressure is used for propane equipment
C Butane equipment is more expensive
D Propane equipment must be cleaned more regularly
Correct Answer: B A higher pressure is used for propane equipment
Explanation: Equipment using propane operates at a substantially higher pressure than equipment using butane.
24. Which of the following gases are/is heavier than air? Check ALL that apply
A Butane
B Carbon monoxide
C Helium
D Propane
Correct Answer: A Butane, B Carbon monoxide, D Propane
Explanation: Propane, butane, and carbon monoxide are all gases that are heavier than air.
25. LPG cylinders must NEVER be stored horizontally when in use (under most circumstances). Why? Give ONE answer
A Because the cylinder may roll away
B Because the cylinder will not work correctly on its side
C Because this creates a flashback risk
D Because this may cause the cylinder to leak LPG
Correct Answer: D Because this may cause the cylinder to leak LPG
Explanation: Cylinders must (usually) be used in a secure, upright position so as to avoid LPG leaks.
26. Under what circumstances may LPG cylinders be placed horizontally when in use? Give ONE answer
A When being used for brazing
B When being used to power forklift trucks
C When there is no safe way of securing them upright
D When working in confined spaces
Correct Answer: B When being used to power forklift trucks
Explanation: LPG cylinders may be used horizontally when they are powering forklift trucks.
27. What do you have to be particularly wary of when using a handheld pipe cutter? Give ONE answer
A Repeated use of the tool may lead to you developing HAVS
B The edge of the cut metal will be extremely sharp
C You must read the COSHH assessment
D Your hand will be coated with fine metal dust
Correct Answer: B The edge of the cut metal will be extremely sharp
Explanation: The edge of a cut pipe will be extremely sharp, and could cause injury.
28. You are removing old water pipes and suspect there may be legionella bacteria in the water there. Which TWO of the following factors describe GOOD conditions for legionella to breed? Give TWO answers
A Cold
B Fast-moving water
C Hot
D Stagnant water
E Warm
Correct Answer: D Stagnant water, E Warm
Explanation: Legionella bacteria breed well in warm, standing water.
29. What kind of protective equipment is required to protect you from legionella bacteria? Give ONE answer
A Barrier cream
B Gloves
C Plasters over cuts and grazes
D Respiratory protective equipment
Correct Answer: D Respiratory protective equipment
Explanation: Respiratory protective equipment will help stop legionella bacteria entering your lungs.
30. What is the main hazard created by welding jobs? Give ONE answer
A Fire hazard
B Fume hazard
C Toxic substance hazard
D Trip hazard
Correct Answer: A Fire hazard
Explanation: Welding and other hot works create a fire hazard.
31. When should you return to an area following the completion of hot works? Give ONE answer
A Usually 1 day later
B Usually 1 hour later
C Usually 2 hours later
D Usually 30 minutes later
Correct Answer: B Usually 1 hour later
Explanation: You must return to a hot works area a while after completing the job to ensure it is safe - usually you must return 1 hour later.
32. When would you NOT have to return to the site of hot works 1 hour after completing the job? Give ONE answer
A If the hot works in question was copper brazing
B If the hot works permit specifies a different period of time
C If the site has closed for the day
D If you have established that the work is absolutely cool
Correct Answer: B If the hot works permit specifies a different period of time
Explanation: Your hot works permit may specify a different length of time after which you must return.
33. Which of the following gases should NOT be employed when using capillary soldered fittings to joint copper tube? Give ONE answer
A Butane
B LPG
C Oxyacetylene
D Propane
Correct Answer: C Oxyacetylene
Explanation: You should not use oxyacetylene gas when using capillary soldered fittings to joint copper tubes.
34. Hot work permits are likely to be required for which TWO of the following jobs? Give TWO answers
A Clearing branches with a chainsaw
B Drilling into an external wall
C Sizing aluminium with a disc cutter
D Welding pipework in a hot water system
Correct Answer: C Sizing aluminium with a disc cutter, D Welding pipework in a hot water system
Explanation: Hot work permits are required for welding and many cutting jobs.
35. What is the easiest way of finding out the safe working load (SWL) of a piece of equipment? Give ONE answer
A By calling the manufacturer
B By loading it until it appears to be at full capacity
C It will be marked on the equipment
D You do not need to know the SWL
Correct Answer: C It will be marked on the equipment
Explanation: The SWL of any piece of equipment will be marked clearly on it.
36. You are using a ladder to access some pipework on an internal wall. Why is it important to properly secure it? Give ONE answer
A So that it does not cause damage to equipment
B So that it does not cause structural damage to the building
C So that it does not create a trip hazard
D So that it does not slide out of place
Correct Answer: D So that it does not slide out of place
Explanation: Ladders must be secured so that they do not slide out of place whilst in use.
37. What kind of gas is stored in a blue cylinder? Give ONE answer
A Acetylene
B Butane
C LPG
D Propane
Correct Answer: B Butane
Explanation: Butane is stored in blue cylinders
38. You are lifting a section of repaired ductwork into place on a ceiling using a scissor lift. When should the run of ductwork be released from the lift? Give ONE answer
A As soon as possible
B Only when it is fixed in place and secure
C Only when it is fixed well enough to hang temporarily
D Only when the workers installing it can hold it safely themselves
Correct Answer: B Only when it is fixed in place and secure
Explanation: When lifting equipment is being used to raise items that are being installed, the items should only be released when they are fixed in place and secure.
39. You need to remove fibreglass insulation from an attic in order to access a section of pipework. Which THREE protective items MUST you wear for this activity? Give THREE answers
A Eye protection
B Full face respirator
C Overalls
D Respiratory protective equipment
E Safety gloves
Correct Answer: A Eye protection, D Respiratory protective equipment, E Safety gloves
Explanation: You must protect your eyes, lungs, and hands when working with fibreglass.
40. You are removing sections of trimmed pipework from your work area. What do you need to ensure? Give ONE answer
A That you alert your colleagues
B That you are wearing cut-resistant gloves
C That you decontaminate the trimmings before disposal
D That you log this in the incident book
Correct Answer: B That you are wearing cut-resistant gloves
Explanation: Ensure you are wearing cut-resistant gloves if you are dealing with sharp material.
41. You are loading a ladder onto a van to transport it to a different site. How should it be secured onto the roof rack? Give ONE answer
A With dunnage bags
B With ladder-clamps
C With secure lashings
D With twistlocks
Correct Answer: B With ladder-clamps
Explanation: Ladder clamps must be used to properly secure a ladder to a roof rack.
42. What must be in place to protect lone workers on site? Give ONE answer
A A dead man's switch
B Lone working is prohibited
C Periodic checks
D The worker must wear high visibility clothing
Correct Answer: C Periodic checks
Explanation: Periodic checks should be conducted on lone workers - but lone working should not take place unless absolutely necessary.
43. You are headed to the storage compound to pick up a propane gas cylinder. What colour cylinder will you need? Give ONE answer
A Blue or green
B Red or black
C Red or orange
D Yellow or orange
Correct Answer: C Red or orange
Explanation: Propane comes in red/orange cylinders.
44. Your colleague says a ladder would be inappropriate for a given task because it would require that you twist your body to access the work. Are they correct? Give ONE answer
A No
B Yes
Correct Answer: B Yes
Explanation: If you cannot access work from a ladder without twisting your body, then you must find an alternative means of access.
45. You need to move a mobile access tower from one side of a warehouse to another in order to access pipework for repairs. What must you ensure BEFORE you move the tower? Give ONE answer
A That anyone on the platform has been alerted
B That anything and anyone on the platform has been safely secured
C That nobody is on the platform, and all tools and materials have been securely tied down
D That nothing and nobody are on the platform
Correct Answer: D That nothing and nobody are on the platform
Explanation: Mobile platforms should not be moved if there are any tools, equipment, or people on them.
46. What is the safest way of dismantling soil pipe if you are working at height? Give ONE answer
A Cut the pipe into smaller sections and remove each piece individually - work in pairs
B Do not work at height - pull the bottom of the soil pipe from ground level until the brackets come loose
C Remove whole sections by breaking the pipe at the collar - work in pairs
D Saw off sections of the soil pipe working from the ground up
Correct Answer: C Remove whole sections by breaking the pipe at the collar - work in pairs
Explanation: You can break the collar of a length of soil pipe and remove entire sections at a time - work in pairs.
47. You are welding in a work area shared by other colleagues. What MUST you ensure? Give ONE answer
A That a screen is erected around your work station
B That they are alerted before you switch on the torch
C That they are wearing appropriate eye protection
D That they are wearing ear protection
Correct Answer: A That a screen is erected around your work station
Explanation: A screen must be put up around welding activities to shield people in the vicinity from welding flash.
48. Metal fume fever is a condition resulting most often from which kind of work? Give ONE answer
A Welding pipework in a hot water system
B Work alongside large industrial plant
C Work using a diesel-powered generator in confined spaces
D Work using solvent-based products
Correct Answer: A Welding pipework in a hot water system
Explanation: Metal fume fever is typically contracted by people who are welding, or doing other hot works.
49. Metal fume fever creates similar symptoms to which other health problem? Give ONE answer
A Eczema
B Headache
C Influenza
D Stomach virus
Correct Answer: C Influenza
Explanation: Metal fume fever can cause fever, chills, headache, nausea, and other symptoms similar to those of influenza (the flu).