問題一覧
1
A soaker flashing is required to be installed on a flue penetrating a roof
which of the following standards is the NZBC clause that provides an acceptable solution for the installation?
E2
2
Which of the following gives the purpose of a flame retention device?
To prevent flame lift off
3
According to NZS 5601 P1, What basic identification colour paint must be used to identify natural gas pipework if the pipework is painted?
Buff
4
According to NZS 5601 P1, what is the minimum horizontal clearance required between a balanced flue terminal and a gas meter fitted with a venting regulator?
800mm
5
What can occur within an appliance that has an energy efficiency exceeding 85%?
Condensation
6
According to NZS 5601 P2, what is the minimum clearance between installed gas piping and any electrical service?
25mm
7
According to NZS 5601 P2, what is the minimum distance allowed between a fuel filler cap and a gas appliance with a permanent pilot (or its vent) In a motorhome?
1000mm
8
Which of the following is the closets conversion of 28,000 BTU/Hr?
30Mj
9
what is the minimum height at which work being carried out becomes notifiable works?
5m
10
Which is the minimum period of time a gasfitting trainee holding a limited certificate work in the presence of his/hers supervisor?
12 Months
11
Accourding to the health and safety in employment regulations, what term is used for work that is more dangerous than usual?
Notifiable work
12
LPG is part of which family of gas?
3rd family
13
What is the gas to air ratio for complete combustion for natural gas?
10:1
14
What is the relative density of LPG?
1.55
15
Which of the following will shit off the gas supply in the event of a mechanical ventilation failing to operate?
Fan interlock
16
Which formula is used to calculate metre correction factor for pressure?
(101.3 + Supply Pressure) / 101.3
17
Which of the following is likely to cause an appliance regulator to make a chattering noise?
The regulator breather hole has been enlarged
18
Which of the following is the vaporisation temperature for butane?
0 c
19
Accourding to NZS 5601 P1, what minimum clearance must there be between an open flue terminal and another flue terminal?
200mm
20
accourding to NZS 5601 P1, what is the maximum permitted gas consumption of an appliance where a twin wall flue is to be used in a cavity wall in a domestic location?
50Mj/h
21
Accourding to the Gas (Safety and measurement) Regulations, what does the abbreviation GSC Stand for?
Gas Safety Certificate
22
What device found in lpg pigtails and regulators limits the amount of gas flow to prevent a large accumulation of gas in the even of a leakage?
Excess flow device
23
Which of the following best describes the term vitilation?
The contamination of air supply to a burner by the products of combustion
24
Which of the following is equivalent to 8 KW?
28.8MJ
25
Accourding to NZS 5601 P1, what is the maximum flue gas temperature at which PVC-U pipe may be used as a flue?
60 c
26
when not specified in the appliance manufacturers instructions, what is the minimum height a natural draught flue can have?
1.2m
27
accourding to NZS 5601 P1, an exhaust duct is required to be fitted to a gas laundry dryer if the gas consumption exceeds which of the following?
10Mj/h
28
Which of the following would cause gas to escape from the breather hole on an appliance regulator?
The regulator diaphragm has ruptured
29
Which of the following appliance types is most susceptible to adverse effects of air movement caused by the operation of mechanical ventilation systems?
Natural draught appliances
30
according to NZS 5601 P1, what is the maximum length of a restraint chain on an appliance that is designed to be slid out for servicing?
80% of the length of the hose assembly
31
which of the following situations would be most likely to activate the high limit switch on a laundry dryer?
a blockage in the lint trap
32
if a combustible gas detection system is required to be installed on a boat, what is the minimum number of sensors required to be fitted?
2
33
Which of the following is not permitted to be used for gas piping in a caravan?
Multilayer proprietary systems
34
What is a minimum distance gas piping can be installed from an electrical service on a boat?
25mm
35
As per NZS 5601 P2, What is the minimum length a flexible connection is permitted to be if it is being used for high pressure piping between and lpg cylinder and regulator?
500mm
36
Which of the following is not permitted to be located inside a caravan?
Quick connect device
37
in what way does a thermopile differ from a thermocouple?
A thermopile is a collection of thermocouples within one probe
38
According to NZS 5601 P2, which of the following words makes a statement a recommendation?
Should
39
Which of the following are present in both natural gas and lpg?
carbon and hydrogen
40
according to NZS 5601 P2, a cylinder compartment in a caravan must not be able to contain more than which of the following?
two 15kg lpg cylinders
41
for pipework being installed in a caravan, pipe supports must be provided within what distance from a tee?
150mm
42
when a caravan fitted with gas appliances requires ventilation, what is the maximum allowable distance between the floor and the low-level ventilation opening?
150mm
43
according to NZS 5601 P1, what is the maximum diameter hole permitted to be drilled in a joist, unless otherwise specified by the manufacturer?
32mm
44
according to NZS 5601 P1, except in single occupancy residential premises, above ground consumer piping must be identified when the operating pressure exceeds which pressure?
7kpa
45
Which government agency administers the gas installation high risk database?
work safe new zealand
46
the efficiency of a gas appliance can be found by using which calculation?
appliance heat output / heat input
47
a gas hob has been commissioned and is working correctly.
When a wok is used on the gas job the bottom of the wok turns black with soot.
Which of the following is most likely to cause this?
the bottom of the wok is impinging on the burner flame
48
natural gas is part of which family of gases?
2nd family
49
which of the following appliance types is most susceptible to adverse effects of air movement caused by the operation of mechanical ventilation systems?
natural draught appliances
50
biogas consists of methane and which other gas?
carbon dioxide
51
which of the following can be confirmed by gas rating an appliance?
the burner injector size is correct
52
according to NZS 5601 P1, what is the minimum permissible clearance above an 8MJ/h overhead radiant heater that is installed indoors to a combustible surface?
900mm
53
according to NZS 5601 P2, what is the minimum possible clearance between the highest part of a gas hob and a range hood constructed of non-combustible materials?
600mm
54
Which of the following is the correct name for AS/NZ 3604:2011?
Timber framed buildings
55
What is the main constituent of natural gas?
Methane
56
Butane is a part of which family of gases?
3rd family
57
What does it mean if 2 gases are in the same family?
there is a possibility to interchange between the gases without the need to change the injector size
58
A thermocouple produces an electrical current. Which reading would you expect to read on a multi meter when testing a working thermocouple?
Between 20 - 35 mV
59
Which statement best describes a thermistor?
a tempature dependant resistor
60
why are hearing outlets from ducted warm air furnaces permitted to be installed in small bed rooms or bathrooms?
the combustion portion of the heater is room sealed
61
the burner on a newly installed log hob burns nicely on high but keeps going out when it is turned down to low.
What is the most likely reason for this to occur?
the low flame has not been set correctly
62
Which of the following accourding to NZS 5601 P1, what is the minimum permitted thickness of a concrete precast chimney used for flue gases not exceeding 300•c?
50mm
63
according to NZS 5601 P1, what is required when a flange joint is to be re-made?
The gasket should be replaced
64
at what pressure does natural gas require pressure lebeling to be displayed?
1.5kpa
65
at what pressure does lpg gas require pressure labeling displayed?
3.5kpa
66
an over pressure shut off is required at what pressure for lpg?
14kpa
67
an over pressure shut off is required at what pressure for natural gas?
7kpa
68
What is the gas to air ratio for complete combustion for lpg?
25:1
69
What is the relative density of natural gas?
0.65
70
What is the heating value of LPG?
96
71
What is the heating value of natural gas?
38
72
what is lpg gas pro dominantly made up of?
Propane + Butane
73
What % of an lpg bottle is full when delivered to allow for vaporisation of the liquid?
80%
74
What is the boiling point of propane?
-42 c
Multichoice Certifying Drainlaying
Multichoice Certifying Drainlaying
ユーザ名非公開 · 68問 · 1年前Multichoice Certifying Drainlaying
Multichoice Certifying Drainlaying
68問 • 1年前ユーザ名非公開
Multichoice Certifying Gasfitting
Multichoice Certifying Gasfitting
ユーザ名非公開 · 66問 · 1年前Multichoice Certifying Gasfitting
Multichoice Certifying Gasfitting
66問 • 1年前ユーザ名非公開
問題一覧
1
A soaker flashing is required to be installed on a flue penetrating a roof
which of the following standards is the NZBC clause that provides an acceptable solution for the installation?
E2
2
Which of the following gives the purpose of a flame retention device?
To prevent flame lift off
3
According to NZS 5601 P1, What basic identification colour paint must be used to identify natural gas pipework if the pipework is painted?
Buff
4
According to NZS 5601 P1, what is the minimum horizontal clearance required between a balanced flue terminal and a gas meter fitted with a venting regulator?
800mm
5
What can occur within an appliance that has an energy efficiency exceeding 85%?
Condensation
6
According to NZS 5601 P2, what is the minimum clearance between installed gas piping and any electrical service?
25mm
7
According to NZS 5601 P2, what is the minimum distance allowed between a fuel filler cap and a gas appliance with a permanent pilot (or its vent) In a motorhome?
1000mm
8
Which of the following is the closets conversion of 28,000 BTU/Hr?
30Mj
9
what is the minimum height at which work being carried out becomes notifiable works?
5m
10
Which is the minimum period of time a gasfitting trainee holding a limited certificate work in the presence of his/hers supervisor?
12 Months
11
Accourding to the health and safety in employment regulations, what term is used for work that is more dangerous than usual?
Notifiable work
12
LPG is part of which family of gas?
3rd family
13
What is the gas to air ratio for complete combustion for natural gas?
10:1
14
What is the relative density of LPG?
1.55
15
Which of the following will shit off the gas supply in the event of a mechanical ventilation failing to operate?
Fan interlock
16
Which formula is used to calculate metre correction factor for pressure?
(101.3 + Supply Pressure) / 101.3
17
Which of the following is likely to cause an appliance regulator to make a chattering noise?
The regulator breather hole has been enlarged
18
Which of the following is the vaporisation temperature for butane?
0 c
19
Accourding to NZS 5601 P1, what minimum clearance must there be between an open flue terminal and another flue terminal?
200mm
20
accourding to NZS 5601 P1, what is the maximum permitted gas consumption of an appliance where a twin wall flue is to be used in a cavity wall in a domestic location?
50Mj/h
21
Accourding to the Gas (Safety and measurement) Regulations, what does the abbreviation GSC Stand for?
Gas Safety Certificate
22
What device found in lpg pigtails and regulators limits the amount of gas flow to prevent a large accumulation of gas in the even of a leakage?
Excess flow device
23
Which of the following best describes the term vitilation?
The contamination of air supply to a burner by the products of combustion
24
Which of the following is equivalent to 8 KW?
28.8MJ
25
Accourding to NZS 5601 P1, what is the maximum flue gas temperature at which PVC-U pipe may be used as a flue?
60 c
26
when not specified in the appliance manufacturers instructions, what is the minimum height a natural draught flue can have?
1.2m
27
accourding to NZS 5601 P1, an exhaust duct is required to be fitted to a gas laundry dryer if the gas consumption exceeds which of the following?
10Mj/h
28
Which of the following would cause gas to escape from the breather hole on an appliance regulator?
The regulator diaphragm has ruptured
29
Which of the following appliance types is most susceptible to adverse effects of air movement caused by the operation of mechanical ventilation systems?
Natural draught appliances
30
according to NZS 5601 P1, what is the maximum length of a restraint chain on an appliance that is designed to be slid out for servicing?
80% of the length of the hose assembly
31
which of the following situations would be most likely to activate the high limit switch on a laundry dryer?
a blockage in the lint trap
32
if a combustible gas detection system is required to be installed on a boat, what is the minimum number of sensors required to be fitted?
2
33
Which of the following is not permitted to be used for gas piping in a caravan?
Multilayer proprietary systems
34
What is a minimum distance gas piping can be installed from an electrical service on a boat?
25mm
35
As per NZS 5601 P2, What is the minimum length a flexible connection is permitted to be if it is being used for high pressure piping between and lpg cylinder and regulator?
500mm
36
Which of the following is not permitted to be located inside a caravan?
Quick connect device
37
in what way does a thermopile differ from a thermocouple?
A thermopile is a collection of thermocouples within one probe
38
According to NZS 5601 P2, which of the following words makes a statement a recommendation?
Should
39
Which of the following are present in both natural gas and lpg?
carbon and hydrogen
40
according to NZS 5601 P2, a cylinder compartment in a caravan must not be able to contain more than which of the following?
two 15kg lpg cylinders
41
for pipework being installed in a caravan, pipe supports must be provided within what distance from a tee?
150mm
42
when a caravan fitted with gas appliances requires ventilation, what is the maximum allowable distance between the floor and the low-level ventilation opening?
150mm
43
according to NZS 5601 P1, what is the maximum diameter hole permitted to be drilled in a joist, unless otherwise specified by the manufacturer?
32mm
44
according to NZS 5601 P1, except in single occupancy residential premises, above ground consumer piping must be identified when the operating pressure exceeds which pressure?
7kpa
45
Which government agency administers the gas installation high risk database?
work safe new zealand
46
the efficiency of a gas appliance can be found by using which calculation?
appliance heat output / heat input
47
a gas hob has been commissioned and is working correctly.
When a wok is used on the gas job the bottom of the wok turns black with soot.
Which of the following is most likely to cause this?
the bottom of the wok is impinging on the burner flame
48
natural gas is part of which family of gases?
2nd family
49
which of the following appliance types is most susceptible to adverse effects of air movement caused by the operation of mechanical ventilation systems?
natural draught appliances
50
biogas consists of methane and which other gas?
carbon dioxide
51
which of the following can be confirmed by gas rating an appliance?
the burner injector size is correct
52
according to NZS 5601 P1, what is the minimum permissible clearance above an 8MJ/h overhead radiant heater that is installed indoors to a combustible surface?
900mm
53
according to NZS 5601 P2, what is the minimum possible clearance between the highest part of a gas hob and a range hood constructed of non-combustible materials?
600mm
54
Which of the following is the correct name for AS/NZ 3604:2011?
Timber framed buildings
55
What is the main constituent of natural gas?
Methane
56
Butane is a part of which family of gases?
3rd family
57
What does it mean if 2 gases are in the same family?
there is a possibility to interchange between the gases without the need to change the injector size
58
A thermocouple produces an electrical current. Which reading would you expect to read on a multi meter when testing a working thermocouple?
Between 20 - 35 mV
59
Which statement best describes a thermistor?
a tempature dependant resistor
60
why are hearing outlets from ducted warm air furnaces permitted to be installed in small bed rooms or bathrooms?
the combustion portion of the heater is room sealed
61
the burner on a newly installed log hob burns nicely on high but keeps going out when it is turned down to low.
What is the most likely reason for this to occur?
the low flame has not been set correctly
62
Which of the following accourding to NZS 5601 P1, what is the minimum permitted thickness of a concrete precast chimney used for flue gases not exceeding 300•c?
50mm
63
according to NZS 5601 P1, what is required when a flange joint is to be re-made?
The gasket should be replaced
64
at what pressure does natural gas require pressure lebeling to be displayed?
1.5kpa
65
at what pressure does lpg gas require pressure labeling displayed?
3.5kpa
66
an over pressure shut off is required at what pressure for lpg?
14kpa
67
an over pressure shut off is required at what pressure for natural gas?
7kpa
68
What is the gas to air ratio for complete combustion for lpg?
25:1
69
What is the relative density of natural gas?
0.65
70
What is the heating value of LPG?
96
71
What is the heating value of natural gas?
38
72
what is lpg gas pro dominantly made up of?
Propane + Butane
73
What % of an lpg bottle is full when delivered to allow for vaporisation of the liquid?
80%
74
What is the boiling point of propane?
-42 c