Test

Question 0

How much should the ladder project above the stepping off point

Answer 0

0.7mmin

Question 1

State the correct angle of a ladder

Answer 1

75 degrees

Question 2

What is the purpose of a toe board

Answer 2

To prevent people and materials from falling off

Question 3

How high should the guard rail be

Answer 3

1 meter above standin point

Question 4

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

Answer 4

Colour and reading the label

Question 5

What is the name given to moving gas bottles by hand

Answer 5

Churning

Question 6

When is cyclinder empty

Answer 6

They are never empty

Question 7

Can oxygen be stored with acetylene

Answer 7

No it cant

Question 8

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

Answer 8

No

Question 9

What prevents the missile effect when valve heads become sheared

Answer 9

An offset in the gas channel prevents the missile effect

Question 10

What is the first and second methodised to identify oxygen bottles

Answer 10

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

Question 11

What colour are oxygen and acetylene hoeses

Answer 11

Oxygen are blue

Acetylene are red

Question 12

What precentage of air is oxy

Answer 12

21%

Question 13

State tge chemical sybol for oxygen

Answer 13

O2

Question 14

List three characteristics of oxygen

Answer 14

Colourless tasteless and odourless

Question 15

What reacts explosive with oxygen

Answer 15

Oils greases tarry substances

Question 16

How many bars of pressure in an oxygen cylinder

Answer 16

230 bars

Question 17

1 bar is equal to how many kilonewtons

Answer 17

101.3 kilo newtons

Question 18

Is oxy lighter than air

Answer 18

No its heavier

Question 19

What dangers are associated with oxygen rich air

Answer 19

Nothing but supports and encourages a fire

Question 20

What solid material is used in a acetylene cylinder

Answer 20

Kapok

Question 21

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

Answer 21

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

Question 22

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

Ut has received a blow

Answer 22

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

Question 23

What reacts with acetylene

Answer 23

Copper

Question 24

Can acetylene kill you any other way except explosion

Answer 24

Ye by the gas

Question 25

What temperture is the oxy acetylene flame

Answer 25

3200c

Question 26

What is the flash point of acetylene

Answer 26

406- 440c

Question 27

What is acetone

Answer 27

Its a liquid in acetylene bottles

Question 28

Why must bottles be stood upright prior to use

Answer 28

So the acetone doesnt leak

Question 29

What is a kerf or notch on oxy acetylene equipment

Answer 29

To identify the acetylene nuts

Question 30

What is the chemical symbol for acetylene

Answer 30

C2h2

Question 31

Is acetylene heavier than air

Answer 31

No it is lighter

Question 32

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

Answer 32

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