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Plumbing Module 1 > Test > Flashcards

Test Flashcards

0
Q

How much should the ladder project above the stepping off point

A

0.7mmin

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1
Q

State the correct angle of a ladder

A

75 degrees

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2
Q

What is the purpose of a toe board

A

To prevent people and materials from falling off

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3
Q

How high should the guard rail be

A

1 meter above standin point

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4
Q

What is the first and second method used to identify acetylene bottles

A

Colour and reading the label

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5
Q

What is the name given to moving gas bottles by hand

A

Churning

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6
Q

When is cyclinder empty

A

They are never empty

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7
Q

Can oxygen be stored with acetylene

A

No it cant

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8
Q

Is it safe to let a gas bottle fall if it becomes unbalanced whilist chrning

A

No

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9
Q

What prevents the missile effect when valve heads become sheared

A

An offset in the gas channel prevents the missile effect

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10
Q

What is the first and second methodised to identify oxygen bottles

A

They are gray or black with white top and also can be identified by label

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11
Q

What colour are oxygen and acetylene hoeses

A

Oxygen are blue

Acetylene are red

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12
Q

What precentage of air is oxy

A

21%

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13
Q

State tge chemical sybol for oxygen

A

O2

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14
Q

List three characteristics of oxygen

A

Colourless tasteless and odourless

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15
Q

What reacts explosive with oxygen

A

Oils greases tarry substances

16
Q

How many bars of pressure in an oxygen cylinder

A

230 bars

17
Q

1 bar is equal to how many kilonewtons

A

101.3 kilo newtons

18
Q

Is oxy lighter than air

A

No its heavier

19
Q

What dangers are associated with oxygen rich air

A

Nothing but supports and encourages a fire

20
Q

What solid material is used in a acetylene cylinder

A

Kapok

21
Q

What is the procedure if an actylene bottle is found to be hot

A 
Dont move bottle
Put water on it
Evacuate building 
Contact fire services
Contact gas supplier
22
Q

What is the procedure if an acetylene bottle is not hot by

Ut has received a blow

A

Check it with the back of ur hand every 5 mins for 2 hours

23
Q

What reacts with acetylene

A

Copper

24
Q

Can acetylene kill you any other way except explosion

A

Ye by the gas

25
Q

What temperture is the oxy acetylene flame

A

3200c

26
Q

What is the flash point of acetylene

A

406- 440c

27
Q

What is acetone

A

Its a liquid in acetylene bottles

28
Q

Why must bottles be stood upright prior to use

A

So the acetone doesnt leak

29
Q

What is a kerf or notch on oxy acetylene equipment

A

To identify the acetylene nuts

30
Q

What is the chemical symbol for acetylene

A

C2h2

31
Q

Is acetylene heavier than air

A

No it is lighter

32
Q

What would happen if you were in a room with 90% acetylene and you turned on a light give a reason for your answer

A

No cause its need to be less than 80% and more than 2%

Plumbing Module 1 (1 decks)

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