Deck 16: Welding

Question 1

8.Which of the following types of welding is associated with inert gas shielding?

A)LBW
B)MAPP
C)GTAW
D)RSEW

Answer 1

C

Question 2

22.Which of the following processes is safest from the standpoint of exposure of the operator to health hazards?

A)FCAW
B)oxy-acetylene welding
C)SAW
D)TIG

Answer 2

C

Question 3

3.Which of the following types of welding is noted for pinpointing the weld with microscopic accuracy?

A)RSEW
B)SAW
C)TW
D)LBW

Answer 3

D

Question 4

7.Which of the following types of welding is associated with inert gas shielding?

A)FCAW
B)SAW
C)TIG
D)TW

Question 5

10.Which of the following types of welding uses flexible consumable electrodes on spools?

A)TW
B)LBW
C)SAW
D)GMAW

Question 6

6.Which of the following types of welding is associated with inert gas shielding?

A)FCAW
B)SAW
C)GMAW
D)TW

Question 7

23.Which of the following is a principal disadvantage of submerged arc welding?

A)the fluxes used are compounds of fluorine
B)nitrogen as an inerting agent can result in oxygen deficiency
C)flashback
D)the flux spills off the weld puddle

Question 8

16.Which of the following types of welding employs an inert gas?

A)RSW
B)RSEW
C)SMAW
D)all of the above
E)none of the above

Question 9

17.Which of the following types of welding employs an inert gas?

A)SAW
B)SMAW
C)FCAW
D)all of the above
E)none of the above

Question 10

12.Which of the following types of welding uses flexible consumable electrodes on spools?

A)RSEW
B)GMAW
C)SMAW
D)RSW

Question 11

2.Which of the following welding methods would be more likely to be found as part of a mass production process in a typical manufacturing plant?
a.RSW
b.SMAW
c.FCAW
d.SAW

Question 12

5.Which of the following types of welding is associated with inert gas shielding?

A)FCAW
B)SAW
C)GTAW
D)TW

Question 13

9.Which of the following types of welding uses flexible consumable electrodes on spools?

A)FCAW
B)GMAW
C)SAW
D)LBW

Question 14

11.Which of the following types of welding uses flexible consumable electrodes on spools?

A)SMAW
B)TW
C)SAW
D)GMAW

Question 15

19.Which of the following distinguishes brazing from soldering?

A)Type of fuel gas used
B)State of the inerting agent
C)Temperature
D)Flux

Question 16

4.Which of the following types of welding is associated with stick electrode welding?

A)RSEW
B)SMAW
C)SAW
D)RSW

Question 17

18.Which of the following types of welding employs an inert gas?

A)LBW
B)TW
C)FCAW
D)all of the above
E)none of the above

Question 18

13.Which of the following types of welding uses flexible consumable electrodes on spools?

A)FCAW
B)GMAW
C)SAW
D)LBW

Question 19

15.Which of the following types of welding employs an inert gas?

A)GTAW
B)GMAW
C)TIG
D)all of the above
E)none of the above

Question 20

1.Which of the following welding methods would most likely be found as part of a production process in the fabrication of large structural steel beams or plate girders?

A)RSW
B)RSEW
C)SAW
D)TW

Question 21

31.A principal disadvantage of seam welding operations is that they

A)are limited to sheet metal applications
B)require higher temperatures than conventional welding
C)require an inerting agent
D)require personal protective equipment

Question 22

35.Spot welding requires electric current and

A)a suitable flux
B)high voltage
C)pressure
D)all of the above
E)none of the above

Question 23

41.For which of the following is grease on the hands or gloves most hazardous?

A)handling acetylene gas cylinders
B)handling MAPP gas cylinders
C)handling oxygen cylinders
D)handling propane cylinders

Question 24

29.A principal disadvantage of spot welding operations is that they

A)are limited to sheet metal applications
B)require higher temperatures than conventional welding
C)require an inerting agent
D)require personal protective equipment

Question 25

26.A principal advantage of resistance welding operations is that they

A)are relatively safe
B)produce stronger welds
C)are good for pinpoint accuracy
D)are flux-cored

Question 26

40.The maximum permissible pressure for acetylene in solution with acetone in cylinders is

A)15 psia
B)30 psia
C)30 psig
D)200 psi

Question 27

43.Acetylene is generated from which combination of ingredients?

A)calcium carbide and acetone
B)calcium carbide and MAPP gas
C)calcium carbide and helium
D)calcium carbide and water

Question 28

25.A principal purpose of the flux in welding operations is to

A)dispose of the slag
B)remove impurities
C)enhance the flow of the weld
D)purify the welder's breathing air

Question 29

32.Which of the following is an inerting agent for welding processes?

A)cadmium
B)MAPP gas
C)argon
D)slag

Question 30

30.A principal advantage of seam welding operations is that they

A)are relatively safe
B)produce stronger welds
C)are good for pinpoint accuracy
D)are flux-cored

Question 31

27.A principal disadvantage of resistance welding operations is that they

A)are limited to sheet metal applications
B)require higher temperatures than conventional welding
C)require an inerting agent
D)require personal protective equipment

Question 32

38.Which of the following welding operations requires pressure in addition to heat?

A)laser beam
B)GMAW
C)FCAW
D)RSW

Question 33

36.Seam welding requires electric current and

A)a suitable flux
B)high voltage
C)pressure
D)all of the above
E)none of the above

Question 34

42.Acetylene is generated from which combination of ingredients?

A)calcium carbide and acetone
B)acetone and MAPP gas
C)helium and acetone
D)calcium carbide and water

Question 35

39.The maximum permissible pressure for acetylene in manifolds is

A)15 psia
B)30 psia
C)30 psig
D)2000 psi

Question 36

44.Which of the following processes is an arc welding process?

A)oxyacetylene welding
B)tungsten inert gas
C)spot welding
D)seam welding

Question 37

24.A principal purpose of the flux in welding operations is to

A)dispose of the slag
B)prevent oxidation
C)enhance the flow of the weld
D)purify the welder's breathing air

Question 38

34.Resistance welding requires electric current and

A)a suitable flux
B)high voltage
C)pressure
D)all of the above
E)none of the above

Question 39

28.A principal advantage of spot welding operations is that they

A)are relatively safe
B)produce stronger welds
C)are good for pinpoint accuracy
D)are flux-cored

Question 40

37.Which of the following welding operations requires pressure in addition to heat?

A)thermit
B)RSEW
C)TIG
D)MIG

Question 41

58 The process of protecting metal with a coating of primarily zinc is called galvanizing.

Question 42

55.Airborne asbestos is the best described as a

A)lung irritant
B)poison
C)chemical asphyxiant
D)particulate resulting in fibrotic pneumoconiosis

Question 43

59.The process of metal coating of primarily cadmium is called galvanizing.

Question 44

50.Which of the following common asphyxiants in the welding process is a chemical asphyxiant?

A)argon
B)carbon dioxide
C)carbon monoxide
D)helium

Question 45

64.Phosgene is generated from the decomposition of

A)chlorinated hydrocarbons
B)trichloroethylene
C)solvents
D)all of the above
E)none of the above

Question 46

48.Which of the following substances is emphasized as a hazard in the OSHA welding standard?

A)silica
B)manganese
C)magnesium
D)zinc

Question 47

46.Which of the following processes can be classified as "gas welding"?

A)oxyacetylene welding
B)gas tungsten arc welding
C)gas metal arc welding
D)submerged arc welding

Question 48

60.Stainless steel is one of the most dangerous materials to weld because of its high cadmium content.

Question 49

47.A typical acetylene cylinder contains liquid because

A)the acetylene is under a pressure of 2000 psi
B)water is needed to displace the used acetylene
C)an acetone/acetylene solution is more stable than free acetylene
D)none of the above;acetylene cylinders do not contain liquid

Question 50

54.Carbon dioxide in the welding environment is considered to be in which of the following categories?

A)lung irritant
B)asphyxiant
C)poison
D)pneumoconiosis

Question 51

53.Which of the following agents in the welding environment is considered the least dangerous?

A)lead
B)mercury
C)tin
D)zinc

Question 52

61.Stainless steel is one of the most dangerous materials to weld because of its high chromium content.

Question 53

63.The energy of the welding arc can cause decomposition of chlorinated hydrocarbon solvents to produce what dangerous gas?

Question 54

51.Which of the following agents is a cause of nonfibrotic pneumoniosis?

A)asbestos
B)beryllium
C)copper
D)silica

Question 55

57.Explain why stainless steel is one of the most dangerous materials to weld.

Question 56

49.Which of the following lung irritants is emphasized in the OSHA welding standard?

A)ozone
B)phosgene
C)phosphine
D)nitrogen oxides

Question 57

56.Name at least three air contaminants in the welding environment that are specifically addressed in the welding standards.

Question 58

52.Select the most dangerous of the following potential exposures in the welding environment.

A)cadmium
B)carbon
C)aluminium
D)tin

Question 59

45.Oxygen cylinders are more hazardous than acetylene cylinders principally because

A)oxygen is unstable
B)oxygen is flammable
C)acetylene is inert
D)oxygen is under higher pressure

Question 60

62.For which plating metal have chronic exposures been associated with emphysema and kidney impairment?

Question 61

79.Which of the following is sometimes called "Monday morning sickness?"

A)metal fumes fever
B)cyanosis
C)lead poisoning
D)beryllium poisoning

Question 62

84.Why do welders' helpers and other personnel sometimes need more training in the use of eye protection than the welders themselves?

Question 63

78.Which metal fume is cited in the text as being responsible for "metal fume fever?"

Question 64

65.Which of the following is not an agent for decomposition into dangerous phosgene gas?

A)chlorinated hydrocarbons
B)trichloroethlene
C)solvent
D)carbon monoxide

Question 65

82.One of the worst workplace disasters in world history involved a fire and explosion from sparks generated by a welder's torch in

A)a Union Carbide chemical plant in India
B)a missile silo in Arkansas
C)a nuclear plant in Chernobyl,Russia
D)a cooling tower under construction at Three-Mile Island,Virginia

Question 66

73.Which of the following is an alloy that makes the metal very dangerous to weld?

A)copper
B)steel
C)aluminum
D)beryllium

Question 67

72.Which of the welding fumes cited in the text as being responsible for a fatality in a single acute exposure?

Question 68

76.Which of the following agents is most known for causing abnormalities in the victms bones?

A)lead
B)mercury
C)beryllium
D)cadmium
E)fluorine

Question 69

68.In the intense heat of welding,even argon can be oxidized.

Question 70

67.In the intense heat of welding,even nitrogen can be oxidized.

Question 71

80."Monday morning sickness" is most associated with exposure to which of the following fumes.

A)lead
B)zinc
C)mercury
D)beryllium

Question 72

81.The phenomenon of "flashback" in context of occupational safety and health pertains to:

A)flammable liquids
B)industrial truck charging areas
C)Class I,Division 1 atmospheres
D)torches

Question 73

83.Explain the difference between the terms "operators" and "operations" as these terms are used in connection with eye protection for welding.Why is this distinction significant?

Question 74

66.Nitrogen is so stable that it is not subject to oxidation.

Question 75

77.One of the reasons for the success of the popular shielded metal arc welding process (SMAW)is that it is not subject to the hazards of fluorine compounds.

Question 76

69.In the intense heat of welding,even helium can be oxidized.

Question 77

70.According to Sax,exposure to NO_x in which of the following ranges results in the air hunger,cyanosis,loss of consciousness,and final death?

A)25 to 50 ppm
B)60 to 150 ppm
C)200 to 500 ppm
D)1 to 2 per cent

Question 78

71.What is the primary route of entry of lead and mercury fumes into the body?

Question 79

75.The principal hazard of fluorine compounds is chronic,not acute,exposure.

Question 80

74.The principal hazard of fluorine compounds is acute,not chronic,exposure.