Take A Free Underwater Welding Exam Practice Test – Quiz Course

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Here You Can Take a Free Underwater Welding Exam Practice Test with the Latest Question and Answers

1.

Scuba Diving Safety
How can you avoid vertigo (dizziness and confusion) on a dive?

 
 
 
 

2.

An object is neutrally buoyant when it displaces an amount of water ________ its own weight.

 
 
 
 

3.

Decompression sickness (DCS) is a condition that can be life-threatening. What forms in the bloodstream and tissues can cause this condition?

 
 
 
 

4.

What should you do to prevent mask squeeze (a sucking or pulling feeling on your face and eyes)?

 
 
 
 

5.

The most important feature of any weight system is.

 
 
 
 

6.

The air in a scuba tank is comprised of _____ oxygen and _____ nitrogen.

 
 
 
 

7.

Sound travels well in water and it is difficult to tell.

 
 
 
 

8.

Most diver injuries caused by aquatic animals happen because:

 
 
 
 

9.

The most important feature for consideration when selecting a regulator is.

 
 
 
 

10.

The best place to carry an alternative air source is:

 
 
 
 

11.

Underwater visibility (how far you can see horizontally) can be affected by.

 
 
 
 

12.

Welding Process
If an excessive amount of preheat is used when making an oxyfuel cut, the?

 
 
 
 

13.

While welding, ventilation should be placed as close to the fume source as practical?

 
 

14.

Which fuel gas can be used to cut low-carbon steel?

 
 
 
 

15.

While flame cutting, the preheat flames (with the cutting jets open) should be?

 
 
 
 

16.

What type of clothing should always be worn when using an OFC torch?

 
 
 
 

17.

ANSI Z49.1 allows oxygen to be used as a substitute for compressed air when necessary.

 
 

18.

In order to maintain production, it is acceptable to operate welding equipment beyond its rated capacity.

 
 

19.

The maaximum safe working pressure for acetylene is?

 
 
 
 

20.

It is not necessary to wear shaded lenses when oxyfuel cutting, because it uses a flame instead of an electric arc.

 
 

21.

Oxygen cylinders should never be stored with flammable gases such as acetylene cylinders.

 
 

22.

Mechanized OFC is commonly referred to as a track burner?

 
 

23.

Because of the low amount of ultraviolet light present, it is not necessary to use shaded lenses when oxy-fuel cutting.

 
 

24.

Oxyacetylene torches can cut?

 
 
 
 

25.

Acetylene cylinders should never be operated while lying on their side because acetone could be drawn into the valve, regulator and hose.

 
 

26.

A confined space is one that

 
 
 
 

27.

Long hair, loose fitting clothes, and ties are personal safety hazards around rotating equipment.

 
 

28.

The oxyfuel cutting process uses oxygen and what other types of gases?

 
 
 
 

29.

When not in use, an electrode holder GTAW torch or MIG gun should not be placed in contact with a grounded metal surface?

 
 

30.

Potential hazards related to arc welding are

 
 
 
 

31.

One should never touch an electrode to a metal surface other than the workpiece because those surfaces may become electrically live.

 
 

32.

One should never enter a welding shop without wearing

 
 
 
 

33.

What is the term for the width of the cut produced by any cutting process?

 
 
 
 

34.

While cutting with acetylene, the oxygen working pressure is?

 
 
 
 

35.

The device used to control the pressure on an oxyfuel cutting torch set is called?

 
 
 
 

36.

A Hot Work Permit

 
 
 
 

37.

What type of thread and color are fuel gas fittings?

 
 
 
 

38.

Flash burn is

 
 
 
 

39.

The selection of a correct lens shade number depends on the

 
 
 
 

40.

Safety glasses are not required when welding with the helmet down.

 
 

41.

Areas that have less than ____ cubic feet per welder, or that have ceilings less than 16 feet high, require forced ventilation.

 
 
 
 

42.

The maximum safe working pressure for Acetylene is

 
 
 
 

43.

Fuel gas hoses are usually colored

 
 
 
 

44.

The gas cylinders must be chained or secured at all times.

 
 

45.

What should one never use on gas cylinders, regulators, connections and hoses?

 
 
 
 

46.

When using a fire extinguisher to extinguish a fire, it should be?

 
 
 
 

47.

A butane or propane cigarette lighter is safe around welding equipment as long as it is kept in one’s pocket.

 
 

48.

Skin contact with liquid oxygen can cause frostbite.

 
 

49.

Fuel gas fittings are equipped with left-hand threads.

 
 

50.

What are the initials of the federal organization created to ensure safe and sanitary working conditions for employees?

 
 
 
 

51.

Acetylene can be used with an oxyfuel cutting tip?

 
 

52.

What type of fire extinguisher should be used on electrical fires?

 
 
 
 

53.

Which of the following is the only acceptable method for lighting oxyfuel torches?

 
 
 
 

54.

Which oxyacetylene flame has an excess of fuel?

 
 
 
 

55.

Vaporized metals such as zinc, cadmium, lead, chromium, and beryllium

 
 
 
 

56.

One should never operatearc welding equipment while

 
 
 
 

57.

Burns are some of the most common and painful injuries in a welding shop.

 
 

58.

One should never cut or weld directly against

 
 
 
 

59.

A fully charged oxygen cylinder contains approximately 225 psi at 70 degrees F.

 
 

60.

Federal regulation requires that hazardous information about a product be provided to all users of that product. The form used to provide this information is called a(n)

 
 
 
 

61.

A burn that causes the skin to blister is referred to as a

 
 
 
 

62.

Underwater Welded Steel Structures
Welding to the W59 standard does not include ESW welding.

 
 

63.

What types of structures are covered in CSA Standard W59?

 
 
 
 

64.

What welding processes are covered in CSA Standard W59?

 
 
 
 

65.

Who is the “engineer” described in CSA W59?

 
 
 
 

66.

CSA Standard W59 covers the welding requirements for what type of steel construction?

 
 
 
 

67.

What are the types of welds as specified in CSA Standard W59?

 
 
 

68.

What as the requirements for contractor certification?

 
 
 
 

69.

What is a low-hydrogen electrode?

 
 
 
 

70.

Welding And Cutting Safety
Cylinder inspection requirements are regulated by the Department of__________.

 
 
 
 

71.

You should not use oxygen as a substitute for air.

 
 

72.

Fuel cylinders must be stored at least ____ feet from combustibles.

 
 
 
 

73.

As long as they are secure, fuel cylinders can be stored on their side.

 
 

74.

Backflow prevention should be provided for oxygen cylinders

 
 

75.

Gas metal arc welding is also known as ___________________________ welding.

 
 
 
 

76.

Shielding is a process used to protect the eyes from welding fume.

 
 

77.

Exposure to zinc fumes may cause metal fume fever.

 
 

78.

Three physical welding hazards are _______________________________radiation, infrared radiation, and intense visible light.

 
 
 
 

79.

Acetylene has a very narrow flammable range.

 
 

80.

Welding Safety Precautions
Exposure to zinc fumes may cause metal fume fever.

 
 

81.

Backflow prevention should be provided for oxygen cylinders.

 
 

82.

Cylinder inspection requirements are regulated by the Department of?

 
 
 
 

83.

Acetylene has a very narrow flammable range.

 
 

84.

Gas metal arc welding is also known as what?

 
 
 
 

85.

Certified Welder program
_________ is the weight of a volume of material compared with an equal volume of water.

 
 
 
 

86.

Square wave refers to the ____________.

 
 
 
 

87.

Shielding gases are used to protect the molten metal from _______.

 
 
 
 

88.

What is the major function of the coating on an arc welding electrode?

 
 
 
 

89.

Weld backing is used with a process that uses a separate flux and electrode to _______ .

 
 
 
 

90.

Arc time is:

 
 
 
 

91.

If a liquid weld pool is at a very high level of energy, at what approximate temperature will the steel begin to solidify?

 
 
 
 

92.

If the weld does not combine with another weld or the base metal it is referred to as:

 
 
 
 

93.

A medium carbon steel has a carbon content of what percentage range?

 
 
 
 

94.

To determine if a welder is qualified, the welder must pass a ________________ test.

 
 
 
 

95.

Which term best describes the operation where a welder or welding operator has control of a molten weld pool and the weld pool has a side to side motion that is transverse to the travel direction?

 
 
 
 

96.

__________ is a groove melted into the base metal next to the weld toe or weld root and has not been filled in.

 
 
 
 

97.

A broken surface is being observed. A small pore or inclusion type discontinuity appears as a round bright area. Which term fits this description?

 
 
 
 

98.

Normal pant and shirt material worn around welding should be of what material?

 
 
 
 

99.

What NDE process is indicated in the following description? Detects surface discontinuities only. It can also verify fit-up, joint configuration, weld dimensions, and profiles.

 
 
 
 

100.

Which of the following is an established norm or requirement issued by the federal, state or local government about technical systems?

 
 
 
 

101.

What is the difference between back and backing welds?

 
 
 
 

102.

Before welding can be done to an industrial welding standard, the supervisor needs to verify:

 
 
 
 

103.

What is the minimum oxygen level for a confined space?

 
 
 
 

104.

Penetrant Testing uses a penetrating liquid dye which is applied to a properly prepared surface. The dye is pulled into the discontinuity by _______ action.

 
 
 
 

105.

Shielded Metal ARC Welding (SMAW or Stick Welding)
Which type of arc length is used for welding in horizontal position?

 
 
 
 

106.

Which type of filler rod is to be selected to avoid weld decay in stainless steel welding?

 
 
 
 

107.

Lack of penetration in a butt welded joint is due to

 
 
 
 

108.

Name the defect, in which the weld metal is following on the surface on the base metal without fusing.

 
 
 
 

109.

The type of edge preparation done for gas welding a 4 mm thick copper butt joint is

 
 
 
 

110.

The current set for 3.15 mm medium coated mild steel electrode is

 
 
 
 

111.

How to specify the size of an electrode holder?

 
 
 
 

112.

If the travel speed of the electrode is high, which type of weld defect you will get on the T fillet joint?

 
 
 
 

113.

Which shade No. of filter glass you will select for the welding helmet for shielded metal arc welding?

 
 
 
 

114.

Which internal defect occurs to using wet electrodes?

 
 
 
 

115.

In arc welding arc blow can be avoided by

 
 
 
 

116.

A keyhole is to be maintained throughout the welding of the first run in a butt joint to ensure

 
 
 
 

117.

What should be the shade number of the filter glass to be used in Arc welding with 150 Amp current?

 
 
 
 

118.

A welding transformer may be

 
 
 
 

119.

What is the reason for selecting DC reverse polarity for welding copper by arc?

 
 
 
 

120.

The distance between the root and toe of a fillet weld is called

 
 
 
 

121.

Which one of the below-given welding machines can be used for both AC and DC welding?

 
 
 
 

122.

What is the effect of the Arc Length used for the Long Arc?

 
 
 
 

123.

Non-destructive Testing like RT also is done underwater.
If the radiation source emits 1 mSv/hr at 1 meter, then what is the dose rate at a 10 cm distance from the source?

 
 
 
 

124.

A survey meter measured a dose rate of 250 mSv/hr from a source at a distance of one meter. At what distance the radiographer will receive radiation of 10 mSv/hr?

 
 
 
 

125.

A radioactive source gives out radiation of 4 mSv/hr; a radiographer has worked for 15 minutes. What is the amount of dose received by him?

 
 
 
 

126.

A radioactive survey meter measured a dose rate of 1 mSv/hr from a source at a distance of one meter. What is the dose rate at a distance of 10 meters?

 
 
 
 

127.

A radioactive survey meter measured a dose rate of 20 mSv/hr from a source at a distance of one meter. What is the dose rate at a distance of 2 meters?

 
 
 
 

128.

Non-destructive Testing like UT can also be done underwater.
Unacceptable transducer performance can usually be detected by:

 
 
 
 

129.

Wheel transducers are most commonly used due to the good advantages of:

 
 
 
 

130.

The wave front transmitted by an Ultrasonic transducer beyond a near zone is essentially a:

 
 
 
 

131.

To minimize beam spread when developing a straight beam technique which of the following transducer should be selected?

 
 
 
 

132.

If the angle of incident during the performance of immersion testing of type 410 stainless steel plate was found to be 33 degrees, which mode would exist in the plate?

 
 
 
 

133.

Non-destructive Testing like MT can also be done underwater.
The least important factor below that should be considered when selecting a method of magnetization to detect subsurface discontinuities is:

 
 
 
 

134.

Small parts requiring demagnetization should be:

 
 
 
 

135.

An effective method for testing hardened steel ball bearings is:

 
 
 
 

136.

A discontinuity caused by a welding operation is:

 
 
 
 

Question 1 of 136

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Who Is Eligible For The Underwater Welding Training And Certification Program? 

Professional divers, industrial divers, and divers having Class 2 certificates from harbored authorities can participate in this course. Students should submit their certificates. 

  1. CV Resume
  2. Diver documents
  3. Medical certificates

Note:  The certificate should not be older than three months.

What are the standards for conducting underwater welding training and certification?

Here you can see a list of international standards. We can do Underwater Welding Training and Certification. 

  1. AWS D3.6 – Specification for Underwater Welding.
  2. EN ISO 15618-1:2002-Qualification Testing of Welders for Underwater Welding 
  3. ASME N-516-Underwater Welding Section XI Div. 1
  4. AWS D3.6M 1999

We are covering all the subjects below:

  • Scuba Diving Safety
  • Utilize and maintain surface-supplied diving equipment.
  • Basic stick welding (SMAW)
  • Implement emergency procedures for surface supply diving.
  • Non-destructive tests like UT, RT, and MT
  • Undertake underwater deployment in a surface-supplied diving operation.
  • Underwater Welded Steel Structures
  • Understand surface cutting and welding procedures
  • Underwater Wet Welding and Cutting
  • Underwater cutting and welding applications
  • Underwater Repair Technology
  • An explanation of underwater welding methods
  • Professional Diver’s Manual on Wet Welding
  • Explanation of underwater cutting methods
  • Introduction of materials used in underwater welding and cutting.
  • Codes, Standards & Specifications governing Underwater Welding
  • An explanation of safety rules to be followed during welding and cutting

What is the cost of an underwater welding course?

The average underwater welding course fee starts at 5000 USD per candidate for one week of training. It depends on the location or how many days they are providing training. For example, in the USA, training fees start from $15,000 USD to $20,000 USD.

How Much Is an Underwater Welding Salary?

The average underwater welding salary is 70,000 USD annually and 35 USD to 75 USD per hour.

Which book should we study for underwater welding training and certification?

  1. Professional Diver’s Manual on wet Welding
  2. Underwater Wet Welding and Cutting.
  3. Non-destructive Examination of Underwater Welded Steel Structures
  4. Underwater Repair Technology.
  5. Welding Symbols

Which equipment is needed for underwater welding?

Here you can see the list of underwater welding equipment that is used in underwater welding.

  • Diving Suit: The diving suit should be flexible armor for the underwater welding job. 
  • Diving Helmet: Here you can see a type of underwater welding helmet, The Eyes and Ears of Hyperbaric Welding Projects, Open Circuit, Reclaim, and Free-Flow Helmet:
  • Underwater Welding Accessories: This section shows which accessories are used for underwater welding, as well as the most important attachments to use, such as a diving knife, umbilical cord, harness, gas panel and compressor, bailout gas, and a knife switch. 
  • Underwater Stinger: Here you can see a type of underwater welding stinger that is insulated, ergonomic, lightweight, and angles correctly. 
  • Underwater Welding Machine: Here you can see which type of machine is used for underwater welding, amperage and current matters, consistent and stable power, duty cycle, DC not AC. 
  • Waterproof Electrodes: Here you can see which type of waterproof electrode is used for underwater welding. The Right Coating Goes a Long Way. It’s a water-resistant coating with a high strength yield.

Where can you get the best underwater welding training and certification schools in the world?

Here is the list of the best underwater welding schools in the world:

ACDE OFFICE
Geof Theist Santa Barbara City College 721 Cliff Drive santa Barbara, California 93109-2394 USA
Tel: 805-965-0581
www.acde.us/		 ACDE ACCREDITED SCHOOLS
CDA TECHNICAL INSTITUTE
91 Trout River Drive Jacksonville, FL 32208 USA
Tel: 904-766-7736
Toll Free: 888-974-2232
Fax: 904-766-7764
www.cda.edu
COMMERCIAL DIVERS INTERNATIONAL
4055 S. Sarival Avenue Goodyear, AZ 85338 USA
Tel: 623-882-3483
www.divecdi.com		 DIVERS INSTITUTE OF TECHNOLOGY
4315 11th Avenue NW P.O. Box 70667 Seattle, WA 98107-0667 USA
206-783-5542
800-964-4234
Fax: 206783-2658
www.diversinstitute.com/
DIVERS ACADEMY INTERNATIONAL
Lakeside Business Park 1500 Liberty Place Erial, NJ 08081-1139 USA
1-800-238-3483
856-404-6100
www.diversacademy.edu		 HOLLAND COLLEGE, GEORGETOWN CENTRE
117 Ken Street Georgetown Prince Edward Island Canada C0A 1L0
Tel: 902-652-2055
800-446-5265
Fax: 902-652-2424
www.hollandcollege.com
Conact: Tawna MacLeod
HYDROWELD USA
Admin and Inquires Dept.
114 Dockside Circle Weston, Florida 33327 USA
Contact: Rebecca Peters
Tel.: 954-385-5678
E-mail:   info@hydroweldusa.com
Website:  www.hydroweld.com 
Contact:  Rebecca Peters		 HYDROWELD UK (and Thailand Training)
Admin and Sales Enquiries Dept. 46 Bedford Drive Sutton Coldfield West Midlands B75 6AX United Kingdom
Tel: + 44 (0) 121 378 1230
Fax: + 44 (0) 121 378 1281
Email:  info@hydroweld.com
Website:  www.hydroweld.com
Contact: Mike Pett or Phil Boulter
INTERNATIONAL DIVING INSTITUTE
1400 Pierside Street Bldg. 190, Suite C N. Charleston, SC 29405 USA
Tel: 843-740-1124
Fax: 843-740-5598
www.ididiver.com		 NATIONAL UNIVERSITY POLYTECHNIC INSTITUTE
3580 Aero Court San Diego, CA. 92123 USA
Toll-Free: 800-432-DIVE (3483)
www.nupolytechnic.com
10 Sand Island Parkway
Honolulu, Hawaii  96819 USA
Toll-Free: 800-432-DIVE (3483)
www.nupolytechnic.com		 SENECA COLLEGE
Underwater Skills Department
13990 Dufferin St., King City
Ontario, Canada L7B 1B3
Tel: 416-491-5050 ext. 5022
or 905-833-3333 ext. 5020
Fax: 905-833-1760
www.senecac.on.ca/fulltime/UWS.html
SANTA BARBARA CITY COLLEGE
Marine Technological Program
721 Cliff Drive Santa Barbara, California 93109 USA
800-965-0581 ext.2429/2427
Fax: 805-963-7222
www.sbcc.edu/marinediving/website/		 SALEH DIVING SCHOOL
NO 20, NAKHL 7, Zakeri St,
Golshahr Jonoubi, Bandar Abbas IRAN
Contact: Mehdi Azizi
Tel/Fax: 0098 76 33660334
Mobile: 0098 9177678247
THE OCEAN CORPORATION
10840 Rockley Road Houston, TX 77099 USA
Tel: 800-321-0298
281-530-0202
Fax: 713-530-9143
www.oceancorp.com		 LOUISIANA TECHNICAL COLLEGE
900 Youngs Road
Morgan City, Louisiana 70380
Tel: 985-380-2436
Fax: 985-380-2440
www.commercialdiveschool.com/diving

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