1 Which of the following will increase the depth of field

A increase the shutter speedB decrease the shutter speedC increase the F numberD decrease the F number

2 Which of the following will increase the field of view of a lens

A long focal lengthB short focal lengthC decrease the apertureD increase the shutter speed

3 Colours will disappear as light travels through seawater because of which of the following

A absorptionB scatterC reflectionD refraction

4 What would be the expected voltage for a structure, which has sufficient protection if it is compared to an Ag/AgCl half-cell

A 800mv to 1100mvB -640mv to –800mvC -800mv to –1100mvD over –1100mv

5 Which of the following would be the expected potential of a zinc anode when compared to a Ag/AgCl half-cell

A 1000mv to 1050mvB 800mv to 1100mvC -1000mv to –1050mvD -1100mv and above

6 Who is responsible for ensuring that sufficient inspection is carried out on an offshore structure

A Lloyds register of shippingB the independent verification bodyC the duty holderD none of the above

7 When inspecting welds using close visual inspection how far either side of the weld must be cleaned to at least SA 2.5

A 50mm either side of the weldB 100mm either side of the weldC 200mm either side of the weldD 75mm either side of the weld

8 When will the most comprehensive inspection be carried out on an offshore structure

A during fabricationB post installationC in serviceD none of the above

9 How many groups does BS499 put metal and weld defects into

A 2B 4C 6D 8

10 What is the most common radiographic isotope used offshore today for weld inspection

A caesium 137B iridium 192C plutoniumD radium

11 If using radiography offshore what will be the most important consideration

A costB likely defectsC test proceduresD safety

12 What type of defects will radiography locate most effectively

A surface breaking defectsB all sub surface defectsC volumetric defectsD planar defects

13 Which of the following would be described as a volumetric defect

A cracksB porosityC lack of root fusionD lamellar tearing

14 What is a planar defect

A a two dimensional defectB a three dimensional defectC a solid inclusionD undercut

15 Which of the following would be termed a miscellaneous defect according to BS499

A undercutB lack of sidewall fusionC lamellar tearingD spatter

16 Which of the following would be the most likely location for a fatigue defect in a offshore structure

A the weld capB the heat affected zoneC the rootD the toe

17 In the case of a 35mm camera what does the 35mm relate to

A the width of the filmB the diagonal of the filmC the length of the negativeD the width of the negative

18 What is focal length

A the distance to the subjectB the distance either side of the subject which is optically clearC the length of the filmD the distance light travels from the front of the optics to the film plane

19 Which of the following could be used as a sacrificial anode on a steel structure

A zincB aluminiumC less noble materialsD all of the above

20 Which terminal of the impressed current power supply should be connected to the structure

A the negativeB the positiveC eitherD neither

21 Which of the following is not a technique which would normally be used to locate defects on a structure

A digital thickness meterB ACFMC CP meterD radiography

22 What is the major limiting factor of a digital thickness meter

A it cannot be used on a steel structureB it can only read on thin steelC it cannot read through paint coatsD it will only show a distance to the major reflector

23 Which of the following best describes the piezo electric effect

A changes electricity into sound energyB changes sound energy into electrical energyC changes sound into light energy and vice versaD both A and B

24 Which of the following techniques does a digital thickness meter use

A tandem probeB double wall single imageC pulse echoD none of the above

25 From the point of view of inspection on a offshore structure, which of the following would be considered to be the major advantage of CCTV

A it will show sub surface defectsB it gives very high resolutionC it gives real time picturesD it can be used to size sub surface defects

26 What is the main advantage of photography over CCTV

A it will show sub surface defectsB it gives very high resolutionC it gives real time picturesD it can be used to size sub surface defects

27 When carrying out a visual inspection which of the following would be described as gross structural damage

A a missing bolt from a riser clampB a small dent in a horizontal memberC blisters on a paint coatingD all of the above

28 Which of the following is the most common radiographic source used for weld inspection offshore today

A caesium 137B iridium 192C plutoniumD X-ray

29 In photography how would the F number be worked out for any given lens

A aperture divided by focal lengthB focal length divided by the aperture diameterC depth of field divided by the film sizeD none of the above

30 What would a silver /silver chloride half-cell be used for

A making the teaB measuring the thickness of a structureC measuring the corrosion protection of a structureD measuring the depth of a defect

31 Which of the following is the general definition of stress

A stress = loadarea

B stress = areaLoad

C stress = weightHeight

D none of the above

32 Which of the following describes compressive stress

A load pulling on a memberB load twisting a memberC load pushing a memberD load being removed from the member

33 What is meant by a stopper hole or arrestor hole

A a hole drilled tat either ends of a crack to stop its propagationB a hole which does not penetrate the memberC a hole with a rope stopper through itD none of the above

34 What is meant by fatigue

A progressive overloading of a solidB snatch load breaking a braceC cyclic stress causing local hardening of the materialD loading beyond the yield stress

35 What is the underside of a concrete beam called

A the bottomB the undersideC the invertD the soffit

36 What name is given to the anchor point of a pre-stressed tendon used to reinforce a concrete structure

A cachetage pointB anchor pointC ducting pointD tremie tube

37 What is the main problem when using putty to make a cast on an offshore structure

A obtaining the materialB the putty will dry out in waterC the cast will deform when removed and transportedD none of the above

38 Which of the following could be used to assess the depth of a surface breaking defect in a steel structure

A DTMB FMDC MPID ACPD

39 Which of the following best describes photogrammetry

A taking photographs at intervals of lapsed time in order to assess changes in seabed conditions

B stereo photography with computer assessmentC stereo photographyD sub sea photography

40 Which of the following cold be used to protect a steel structure against corrosion in the splash zone

A Henderson ringsB cathodic protectionC anodic protectionD coatings

41 What occurs during the anodic reaction

A the atom gains an electronB the atom loses electronsC the atom becomes a negative ionD none of the above

42 What is meant by a cycle in ultrasonics

A one complete particle vibrationB one hertzC the speed with which the sound travels in the materialD none of the above

43 What is meant by anaerobic corrosion

A corrosion with the aid of oxygenB corrosion without oxygenC corrosion inside a pipeD corrosion in a droplet of water

44 Which of the following are factors affecting marine growth

A depthB temperatureC water flow rateD all of the above

45 What would be the major effect of soft marine growth on a structure

A increasing the mass so reducing the natural frequencyB decreasing the likelihood of finding CVI defectsC increases the drag on the structureD Blocks intakes and outfalls

46 If the velocity of water flow were doubled how would the drag force be affected

A stay the sameB it will be doubledC it will be trebledD it will be four times increased

47 Which of the following types of marine growth would be most affected by depths outside the photic zone

A plantsB soft growthC animalsD hard growth

48 how often should risers and conductors be inspected

A at least every 5 yearsB post incidentC decided by the duty holderD both B & C

49 Which of the following best describes a butt weld

A a weld in which the bulk of the weld material lies outside the planes or thickness of the parent plate

B a weld in which the bulk of the weld material lies within the planes or thickness of the parent plate

C a weld where the parent plates are brought together end to endD a weld where the parent plates are joined with some overlap

50 Assuming access to both sides of the weld which of the following would never be found by a visual inspection

A lack of penetration in a single V butt weldB lack of penetration in a double V butt weldC surface breaking porosityD undercut

51 When reporting a defect on a weld which of the following should be reported

A distance to datumB length of the defectC orientation of the defect relative to the weldD all of the above

52 When diving on a structure which is protected by a platform based impressed current protection system how should the system be

A fully activeB turned offC locally isolatedD none of the above

53 A diver employed to carry out MPI must have which of the following certificates

A 3.1uB 3.2uC 3.3uD 3.4u

54 How does a concrete structure protect its reinforcement cage

A concrete is waterproofB paint coatsC anodic protectionD passivation

55 Which of the following metals can be used as sacrificial anodes for the protection of a steel structure

A ironB platinumC magnesiumD all of the above

56 At what stage of the structures life will the most complete inspection be carried out

A during fabricationB post launchC in serviceD none of the above

57 Under current UK legislation who will be responsible for ensuring safe levels of inspection are carried out on a offshore structure

A the certifying authorityB the verification bodyC the HSED the duty holder

58 What is meant by inherent defects

A defects which the structure inherits from the weldingB defects which the structure inherits from the raw materialC defects which the structure will develop in serviceD defects on an offshore structure

59 If a load is found to be pulling on a brace which of the following types of stress will the brace be under

A compressiveB shearC tensionD all of the above

60 Which of the following best describes drag

A fluid flow attempting to move the object in the opposite direction to the flowB fluid flow attempting to move the object in the same direction as the flowC a tiring swimD the structure being moved

61 What would happen if a structure were loaded beyond the yield stress

A the structure would failB the structure would return to normal as soon as the load was relievedC the structure would be unaffectedD the structure would become permanently deformed

62 Which of the following would you expect to see if a structure has failed through ductile failure

A large local deformation

B no local deformationC paint coat removalD none of the above

63 What is meant by a jarlan hole

A a hole in the metalB a hole through which a cable is passedC a perforation in a breakwater wallD the underside of a concrete beam

64 Which of the following will increase the rate of marine growth on a offshore structure

A localised increases in pressureB localised increases in temperatureC Henderson ringsD wave action

65 Which of the following is least detrimental to an offshore structure when it is being cleaned

A needle gunB hydraulic wire brushC water jetD scrapper

66 According to ISO 8501-1 which of the following best describes cleaning to paint coat

A SA1B SA2C SA2.5D SA3

67 What is meant by scour

A removal of paint coatB removal of weld metal during defect examinationC removal of marine growthD removal of seabed

68 If a blister is located on an offshore structures paint coat what should be done

A burst it and inspect underneathB burst it and leave itC burst it and repaintD leave it alone

69 Which of the following could be the effects of debris

A impact damageB galvanic corrosionC overloading of the cathodic protection system of the structureD all of the above

70 What is meant by the term soffit when applied to concrete inspection

A the top of the beamB the underside of the beamC the side of the beamD none of the above

71 How many defect types are there in concrete inspection

A 2B 4C 6D 8

72 How does concrete protect the reinforcement cage against corrosion

A cathodic protectionB anodic protectionC paint coatsD passivation

73 If the term soldier is applied during concrete inspection which of the following would best describe the feature

A a shutterB a tie rodC a shutter supportD reinforcement

74 When inspecting concrete which of the following would be described as a blemish

A construction jointB honeycombingC cast in socketD water jet damage

75 What is meant by a cachetage point

A an anchor point of a pre-stressed tendonB an anchor point of re-barC an anchor point of the structureD any of the above

76 Which of the following best describes a fillet weld

A a weld where the bulk of the weld metal lies within the planes or thickness of the parent plates

B a weld where the bulk of the weld metal lies outside the planes or thickness of the parent plates

C a weld which is only welded from one sideD a weld which is not completed

77 What is meant by a volumetric defect

A a defect which has no volumeB a defect which has large surface area but low volumeC a defect which has large volume for a relatively low surface areaD a defect which is on the surface of the weld

78 How many defects does BS499 group metal and weld defects into

A 2B 4C 6D 8

79 Which of the following is classed as a cavity during weld inspection

A copper inclusionB porosityC tungsten inclusionD laminations

80 Which of the following can detect surface breaking defects through non-conductive coatings

A ACPDB digital thickness meterC FMDD electro magnetic detection techniques

81 Which of the following will not be used in defect location during an offshore inspection program

A CP meterB MPIC DTMD visual inspection

82 Which of the following best describes the reason for filling out photo log sheets during photographic inspection

A to allow the photo tech to assess the film properlyB to record basic details as to the frame exposure subject etcC to send to the company repD to help in engineering assessment

83 What is meant by bracketing the exposure during photography

A setting the correct exposure first timeB using the camera on auto modeC taking three pictures varying the exposure to ensure the correct resultD marking the exposure down on the photo log and putting it in brackets

84 If there is a need to increase the depth of field which of the following should be done

A increase the F numberB decrease the F numberC change the filmD increase the strobe output

85 When using close up prods for an NDT inspection which of the following should be done

A bisect the angle between the componentsB include a scaleC ensure the inspection site is properly litD all of the above

86 Which of the following best describes film speed

A the speed with which the film can be advancedB the length of time a film is exposedC a numerical value relating to the sensitivity of the filmD none of the above

87 What is backscatter

A light reflected back from suspended particles in the waterB light reflected back from the subjectC light not received at the cameraD light sent out from the strobe

88 What is the photosensitive part of a colour negative photographic emulsion

A silver/silver chloridesB silver halide crystalsC silver bromide crystalsD iridium 192

89 Which of the following is the main advantage of an SIT video camera

A it produces high quality colour picturesB it is very robustC it is very smallD it works in very low light conditions

90 When starting a CCTV inspection what should be done

A a video log should be completedB an introduction should be completedC the camera should be centred properlyD all of the above

91 What is the significance of the order of materials in the galvanic series

A any metal less noble will be protected by the more nobleB any metal less noble will become the cathode when connected electrically to a

more noble metalC any metal less noble will become the anode when connected electrically to a

more noble metalD none of the above

92 What does a CP meter actually measure

A protection levels on all structuresB potential differencesC time and therefore distanceD wall thickness

93 What is galvanic corrosion

A dissimilar metal corrosionB crevice corrosionC biological corrosionD overloading of the protection system

94 Which of the following metals would normally be used for an impressed current auxiliary node

A magnesiumB zincC aluminiumD platinum

95 Which terminal of the impressed current protection power supply would be connected to the auxiliary node

A the positiveB the negativeC eitherD both

96 What would be the expected reading for an Ag/AgCl half cell on an unprotected structure

A 550mv – 640mvB 800mv – 1000mvC -550mv - -640mvD -800mv - -1000mv

97 What reading would you expect to see on a bathycorrometer when applied to an over protected structure

A -800mvB -900mvC -1050mvD -1100mv

98 Which of the following best describes the piezo electric effect

A a material which possesses this property will when subjected to a mechanical vibration produce an electrical signal

B a material which possesses this property will when subjected to a electrical signal produce an mechanical vibration

C a material which possesses this property will when subjected to a electrical signal produce an mechanical vibration and vice versa

D none of the above

99 Discuss the advantages and disadvantages of using sacrificial systems of protection compared to an impressed current system on offshore structures

100 With the aid of sketches show a fillet welded T joint with an included angle of 45º and indicate on the drawing the following: heat affected zone, throat thickness, cap, toe and leg length.

101 With the aid of sketches show a butt-welded joint and indicate the following: excess weld metal, effective throat thickness, the weld zone, fusion zone and the root

102 Describe a complete procedure for the visual inspection of a submerged weld on an offshore structure

103 Discuss the factors affecting depth of field in an underwater photograph

104 Discuss the advantages and disadvantages of the various methods which could be used to record the results of an underwater inspection

105 Discuss with the aid of sketches where necessary the methods of protection against corrosion which can be used effectively below the waterline of a steel structure

106 Discuss with the aid of sketches where necessary the methods of protection against corrosion which can be used effectively on the waterline of a steel conductor or riser

107 Discuss the advantages and disadvantages of MPI over ACFM

108 Draw a box diagram of a ultrasonic thickness meter

109 Discuss the methods of corrosion protection monitoring available offshore

110 With the aid of sketches describe frequency and indicate the following: a cycle, wavelength, high frequency waves and low frequency waves

111 Show with the aid of sketches the parallel closed loop method used in MPI showing right hand rule and the flow of magnetism

112 Show with the aid of sketches the flux lines of a bar and a horseshoe magnet

113 Show with the aid of sketches the piezo electric effect

114 Discuss with the aid of diagrams backscatter in photography

115 Show with the aid of sketches compressive, tensile, shear stress on a member