Propane Cylinders And Vaporization

Front 1

Who is responsible for the certification of propane cylinders in Canada?

Back 1

Transport Canada

Front 2

What is the minimum rated working pressure for a propane cylinder?

Back 2

240 psi

Front 3

What is the maximum filling density of a propane cylinder based on weight?

Back 3

42% of the WC

Front 4

Who is responsible to ensure that a propane cylinder is not overfilled?

Back 4

The person who fills the cylinder

Front 5

How many cylinders (maximum) can be connected together, and installed against the wall of a building for propane fuel supplied to the building?

Back 5

4

Front 6

How often must a propane cylinder be recertified?

Back 6

Every 10 years

Front 7

When transporting a propane cylinder, what position must it be in?

Back 7

Secured with the relief valve, communicating with the vapour space

Front 8

What is the tare weight of a cylinder?

Back 8

The weight of the cylinder when empty

Front 9

What is the purpose of a spit valve on a propane cylinder?

Back 9

To determine when the cylinder is full

Front 10

What is the purpose of an OPD?

Back 10

To prevent the cylinder from being overfilled

Front 11

When is it necessary to install an excess flow valve on a cylinder used on a construction site?

Back 11

On all cylinders over 1 pound propane capacity

Front 12

When is a plug or cap required in the valve of a propane cylinder?

Back 12

When the cylinder is less than 45 pounds of propane capacity

Front 13

What is the maximum size of bleed opening in a spit valve?

Back 13

A number 54 orifice drill size

Front 14

What is the minimum distance that combustibles must be kept clear of a propane container?

Back 14

10 ft

Front 15

The requirement is that there must be a minimum distance of____ ft from any tank, __ft from the property line and ___ft from any source of ignition

Back 15

10ft

25ft

25ft

Front 16

It is illegal to fill any propane, container tank or cylinder in excess of how much volume?

Back 16

80% of its volume

Front 17

Testing an excess flow valve in the summer when pressures are high, will not prove what?

Back 17

That the valve will also function under low pressure conditions in the winter

Front 18

What is the WC of a propane cylinder?

Back 18

Weight of water the cylinder can hold when full

Front 19

In the specifications CTC 4BA240 what does the 240 stand for?

Back 19

Minimum rated working pressure

Front 20

What must be done to a new cylinder before it can be filled?

Back 20

It must be purged of moisture and air

Front 21

When a propane, vent line, discharges, vertically upwards, what is required on the outlet end ?

Back 21

A loose fitting cap

Front 22

Where should a relief valve on a propane cylinder be located?

Back 22

So that communicates with the vapour space at all times

Front 23

What is the purpose of the fixed liquid level gauge?( spit valve )

Back 23

To determine when the maximum filling density is reached

Front 24

What is the minimum distance between a cylinder relief valve, and a building opening below the relief valve?

Back 24

3feet

Front 25

What is the maximum size propane cylinder that may be used indoors without permission from the authority having jurisdiction?

Back 25

5 pounds

Front 26

What is the significance of theQ-CC1 propane cylinder valve over the standard POL valve ?

Back 26

It has an excess flow valve

Front 27

Separate filler valves have two backcheck valves incorporated into them. One is a metal to metal seat. What is the other check valve seat?

Back 27

Neoprene to metal

Front 28

On construction sites, what is required to be used with all propane cylinders, larger than 1 pound propane capacity?

Back 28

An excess flow valve

Front 29

What is the purpose of the bypass hole in the excess flow valve?

Back 29

To allow the valve to return to its open position

Front 30

How frequent should an excess flow valve be tested?

Back 30

When it’s installed and annually after that

Front 31

Why is an excess flow valve installed?

Back 31

To control the flow of propane, in case of a line rupture or breakage

Front 32

The smallest cylinder has 1 pound of propane capacity, and the largest cylinder has____ pounds of propane capacity

Back 32

420 pounds

Front 33

Prior to being called transport Canada the organization was called the Canadian transport commission, and prior to that it was called the what?

Back 33

Board of transport commissioners

Front 34

Cylinders made in the US are certified through who?

Back 34

Department of transport, or the interstate commerce commissioner

Front 35

The length of a hose used to connect a construction heater to a cylinder is how long?

Back 35

Minimum 15 feet and maximum 75 feet long

Front 36

How is an excess flow valve sized?

Back 36

So that it will allow 50% more flow than the maximum expected flow rate

Front 37

If the excess flow valve is installed on a liquid line a _______ is required upstream of the excess flow valve

Back 37

Strainer

Front 38

_______ valves will be needed to clean the strainer without draining the entire propane system

Back 38

Isolation

Front 39

How must cylinders be painted?

Back 39

Powder coated with colours that are light and reflective

Front 40

How much BTUs per pound of propane does it take to cause vaporization without raising the temperature of the propane liquid?

Back 40

54 btus per pound