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Alberta Welding 1st year > Welding Safety > Flashcards

Welding Safety Flashcards

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1
Q 
Permanent eye damage in the form of cataracts or retinal damage may result from over exposure to which of the harmful light ray?
A) visible
B) infrared
C) ultraviolet
D) reflected
A

B) infrared

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2
Q 
What type of radiant energy can cause welding flash?
A) Visible light
B) infrared light
C) ultraviolet light
D) gamma rays
A

C) ultraviolet light

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3
Q

What must be done when the general public is exposed to harmful welding rays?
A) put up proper screens and warning signs
B) let people look out for themselves
C) Weld only when no one is around
D) avoid the use of a long arc length

A

A) put up proper screens and warning signs

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4
Q

What should you do immediately if you receive a major contact burn?
A) rub the affected area with antibiotic cream
B) seek professional medical attention
C) cool the burned area by immersing and cool still water
D) place the burned area under a fast running warm water tap

A

C) cool the burned area by immersing and cool still water

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5
Q 
One of the most common workshop hazards is:
A) heavy weights
B) high noise levels
C) other workers
D) poisonous gases
A

B) high noise levels

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6
Q 
Hearing protection should be worn when the noise level is above:
A) 65 dB
B) 85 dB
C) 115 dB
D) 135 dB
A

B) 85 dB

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7
Q 
What type of eye protection is recommended for grinding operation?
A) Full face visor and safety glasses
B) Side shields
C) welding goggles
D) Photo electric welding helmet
A

A) Full face visor and safety glasses

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8
Q 
What shade of filter plate is recommended for medium amperage GMAW operations
A)9
B)10
C)11
D)12 or over
A

C)11

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9
Q 
What type of material offers the best protection against sparks and molten slag?
A) leather
B) wool
C) nylon
D) Cotton
A

A) leather

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10
Q

What gloves are recommended for oxy fuel cutting?
A) hard twist cotton
B) silicon treated nylon
C) dry tanned leather gauntlet style
D) Oil treated cowhide with external cotton stitching

A

C) dry tanned leather gauntlet style

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11
Q

Why is a fit test important when using a respirator?
A) so more than one worker can use it
B) so you look professional on the job
C) to prevent inward leaks of contaminated air
D) so you do not have to shave every day

A

C) to prevent inward leaks of contaminated air

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12
Q

Poisonous phosphorus gas can be created by vapours of chlorinated hydrocarbon degreasers when the vapours are acted upon by
A) local or general ventilation
B) High concentrations of visible light
C) heavy volumes of fumes
D) ultraviolet radiation from the welding arc

A

D) ultraviolet radiation from the welding arc

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13
Q 
What type of respirators use filters and cannot be safely used in oxygen deficient atmosphere?
A) Air purifying
B) Airline
C) self-contained breathing apparatus
D) emergency escape breathing apparatus
A

A) Air purifying

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14
Q 
Call which metal when heated or welded 10 produce metal fume fever if the fumes are inhaled?
A) aluminum
B) zinc
C) chromium
D) cobalt
A

B) zinc

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15
Q 
When oxygen reacts with ultraviolet light from welding the gas produced is:
A) phosphine
B) nitrogen dioxide
C) Ozone
D) carbon monoxide
A

C) Ozone

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16
Q

When welding on metal plated with cadmium
A) Beautifully date deoxidized filler metal to avoid porosity
B) consult MSDS for safety procedures to follow
C) General mechanical ventilation is adequate provided there are four complete air exchanges per hour
D) a dust filter mask should be worn

A

B) consult MSDS for safety procedures to follow

17
Q 
Hydrogen sulphide gas found in oil and gas wells and concentrations as low as 700 ppm may cause:
A) an uncomfortable rotten egg smell
B) unconsciousness and death
C) an explosion
D) Burning of the eyes and throat
A

B) unconsciousness and death

18
Q

The first line of defence against welding fumes and gases is:
A) A supplied air respirator
B) source extraction equipment
C) to complete all welding during the first half of your work shift
D) to weld outside

A

D) to weld outside

19
Q

What device breaks the current flow while still at a low level to protect people from electric shock
A) heavy duty circuit breaker HD CB
B) Ground fault circuit interrupter GFCI
C) Heavy duty electrode holder HDEH
D) Transformer rectifier silicon diode TRSD

A

B) Ground fault circuit interrupter GFCI

20
Q

A vessel that has contained a flammable substance can be made safe from welding by:
A)Steaming thoroughly and welding well hot and still full of steam
B)Steaming well, then allowing the best such a cool and dry out
C)sealing all Vince tightly to prevent atmospheric air from getting inside
D) using a hot water flush, followed by cold water and a drying out period.

A

A)Steaming thoroughly and welding well hot and still full of steam

21
Q 
When working in confined spaces it is recommended that cutting torches be ignited and extinguished:
A) outside The confined space
B)Inside the Confined space
C) Near the confined space
D) where ever it is most convenient
A

A) outside The confined space

22
Q 
Before entering a vessel to make repairs, you should insist on testing the vessel for:
A) Leaks in the vessel and piping
B)Fumes and oxygen deficiency
C)Corrosion or erosion tolerances
D)Blockages in ventilation systems
A

B)Fumes and oxygen deficiency

23
Q 
Where a worker is authorized to enter a confined space, it must be verified that the oxygen content is:
A) 7% to 12% by volume
B) 2 psi to 12 psi
C)19.5% to 23% by volume
D)24% to 29% by volume
A

C)19.5% to 23% by volume

24
Q

The base of an inclined ladder should be no further away from the base of a wall than:
A) 1 m out for every 2 m a vertical height
B)1/2 the total length of the ladder
C) 1/4 of the vertical height from the base of the ladder to where the ladder contacts the wall
D)1/3 of the vertical height of the supporting wall

A

C) 1/4 of the vertical height from the base of the ladder to where the ladder contacts the wall

25
Q

The employer shall insure that cylinders containing acetylene are:
A) secured in a vertical position
B) identified using a designated colour code
C)League tested at least once every two years
D)Equipped with useable plugs on the top and bottom of the cylinder

A

A) secured in a vertical position

26
Q

A worker shall not work or position himself under a raised vehicle or trailer unless it is supported by:
A) stands or blocks
B)A jack with locking pins
C)Hydraulic jacks that do not leak
D) an empty steel barrel on a crossmember

A

A) stands or blocks

27
Q 
A load on a scaffold must not exceed what percent of the design load for the scaffold
A) 50%
B) 35%
C) 25%
D) 20%
A

C) 25%

28
Q

A tool rest on a fixed grinder must be:
A) adjusted when the grinder is in motion
B)Such a minimum 6 mm from the wheel
C)Positioned for grinding on the side of the wheel
D) set to a maximum of 3 mm from the face of the wheel

A

D) set to a maximum of 3 mm from the face of the wheel

29
Q

Who is responsible for the personal safety of everyone in the shop
A) shop foreman
B) plant superintendent
C)Individual worker
D) Alberta occupational health and safety

A

C)Individual worker

Alberta Welding 1st year (28 decks)

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