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Random Shit Flashcards

1
Q

Vertex flue

A

300mm from insulation

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2
Q

Riddor report time

A

14 Days

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3
Q

Carport is open on… side

A

2

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4
Q

Smoke pellet requirements

A

5m3 / 30 seconds

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5
Q

Electric spacings

A

150mm main services
25mm cables/ switches

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6
Q

Working pressure @ meter

A

21 mbar +2 -2.5

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7
Q

Terminal guard, gap

A

50mm from any point of terminal

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8
Q

Timed purge

A

<0.02m3

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9
Q

Source of ignition purge

A

> 0.02m3

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10
Q

Smelly additive

A

Tetrahydrothiophene

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11
Q

Service side is …

A

Upstream

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12
Q

Installation side is …

A

Downstream

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13
Q

Heat shield air gap

A

5mm

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14
Q

Fire spigot

A

15 mm- no closer than 50mm to wall

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15
Q

Terminal opening size (2)

A

6-16mm
Or > 170mm

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16
Q

Flue damper needs to be

A

Mechanically fixed/ removed

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17
Q

Starter blocks needed on pre cast

A

3

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18
Q

Cover blocks required pre cast

A

1

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19
Q

Open flue minimum before bend

A

600mm

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20
Q

Hearth size requirements (4)

A

Back of fire to hearth 300mm
Min from burner 150mm
Min 50mm thick, 12mm non combustible
50mm upstand

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21
Q

Single wall orientation

A

W bottom - M top (guttering)

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22
Q

Twin wall orientation

A

M bottom - W top

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23
Q

Inspection hatch size

A

300 x 300mm

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24
Q

Inspection hatch distance

A

1.5m max from any joints/ COD

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25
To be found on cast iron heat exchangers
Shale
26
Maximum shut off time: Back boiler/ boiler
60
27
Maximum shut off time: Warm air
60
28
Maximum shut off time: Instant water heater
60
29
Maximum shut off time: Radiant/ convector gas fire
180
30
Maximum shut off time: DFE
60
31
Maximum shut off time: Storage water heater, up to 35kW Net
60
32
Maximum shut off time: Storage water heater, above 35kW Net
45
33
Maximum shut off time: Circulator
60
34
Maximum shut off time: Circulator
60
35
Maximum shut off time: Cooker w/ oven enclosed burner
60
36
Maximum shut off time: Cooker, hot plate & grills (open burner)
90
37
Multifunctional gas valve, components (5)
Inlet test point Burner test point Pilot adjuster Burner adjuster Operating button
38
OF Flue components (4)
Primary flue Secondary flue Draught diverter Terminal
39
Draught diverter purposes (3)
Diverts draught away from primary flue Allows POCs to be diluted Breaks the pull of the secondary flue
40
Proprietary system: high level per kW
12.5cm2
41
Non-proprietary system: low(er) level per kW
7.5 cm2
42
What needs to be fitted after AECV and within what measurement
Test point within 300mm
43
Landlord certificate number
CP12
44
DFE minimum flue diameter unless stated by MIs
175mm
45
Types of meter box (4)
Built in Surface mounted Semi concealed Universal
46
Imperial gas rate calculation
3600/ time taken x 1040 / 3412 /1.11
47
Metric gas rate calculation
2 mins x 30 x 10.76 / 1.11
48
Gas rate tolerance
5% above 10% below
49
Only gas pipe allowed within a cavity if attached to what appliance
ILFE
50
OF terminal requirements (3)
Sealing/ clamping plate Cement flaunching Terminal
51
OF flue liner: Components (5)
Register/ debris plate Flue liner Sealing/ clamping plate Cement flaunching Terminal
52
Pipe in solid floor depth
Atleast a 25mm cover
53
OF Chimney support distance
1.8m/ COD
54
The air pulled drawn in by air ports on the burner
Primary air
55
The air around the flame is referred to as.
Secondary air
56
Combustion air that is deficient in oxygen..
Vitiated
57
Flames touching or joining together
Impingement
58
Interference with flames causing them to cool.
Flame chilling
59
Cross sectional area of round/ rectangular flues
12000 mm2 Round 16500 mm2 Rectangular, minimum diameter greater than 90mm
60
Minimum void dimensions below appliance connection: Previously used with solid fuel / oil
250 mm (0.012m3/12 litres)
61
Minimum void dimensions below appliance connection: Previously used with gas
75mm (0.002m3/ 2 litres)
62
What is usually incorporated on burners to help prevent flame lift?
Flame retention

Gas (5 decks)

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