Hornbill Industrial Training provides CompEx training and certification, including CompEx Gas/Vapour, Dust, Mechanical, Refresher, Responsible Persons and Foundation courses.
This is a Hornbill Industrial Training Mock CompEx Online Exam.
Group I - categories 1,2,3
Group II - Categories 1,2,3
Group III - Categories 1,2,3
Group IIII - Categories 1,2,3
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Ga, Gb, Gc
Gd, Ge, Gn
Gia, Gib, Gic
Gx, Gy, Gz
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IEC 60079-0
IEC 60079-10
IEC 60079-14
IEC 60079-17
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I
IIA
IIB
IIC
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Ignition source
Fuel supply
Enclosure
Oxygen
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Flash point
Fire point
Ignition temperature
Boiling point
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-10oC to +20oC
-20oC to +40oC
-30oC to +60oC
-40oC to +80oC
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The equipment will reach this temperature in normal operation
The equipment will reach it's flash point in normal operation
The relevant surfaces of the equipment will not reach this temperature in normal operation
The equipment will exceed the temperature rating in normal operation
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Zone 0
Zone 1
Zone 2
Zone 20
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Circles
Cross hatching
As symbols shown on the drawing
Slanted lines
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API
TAT
EPL
IEC
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A,b,c
B,d,c
W,x,y
C,B,E
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Zones 0, 20
Zones 1, 21 and lesser zones
Zones 2, 22 only
Zones 20, 21 and 22 only
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EPL Gb, Category 2G area
EPL Ga, Category 1G area
EPL Gc, category 3G area
EPL Da, Category 1D area
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Ex d
Ex e
Ex ia
Ex ib
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EPL Ga, Gb or Gc - categories 1G, 2G or 3G
EPL Gb or Gc - Categories 2G or 3G
EPL Gc - Category 3G only
EPL Ga - Category 1G only
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Ex d IIA T6
Ex d IIB T3
Ex n II T3
Ex e IIA T4
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EPL Ga, Gb and Gc Categories 1G, 2G and 3G
EPL Ga and Gb Categories 1G and 2G
EPL Gb and Gc Categories 2G and 3G
EPL Gc Category 3G only
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EPL Ga, Gb and Gc; Categories 1G, 2G and 3G; gas group IIA and IIB
EPL Ga and Gb; Categories 1G and 2G; gas group IIB and IIC
EPL Gb and Gc; Categories 2G and 3G; gas group IIC
Any location and gas group
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Certified Ex d gland
Certified Ex e gland
Certified Barrier gland
Certified to IEC 60079
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The equipment is unsuitable for any area
The equipment can only be used in IIA areas
The equipment can be used in all gas group areas
The equipment can only be used in IIB area
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Continue operating the machine as long as the gauge does not exceed 10% of the normal range.
Stop the machine immediately and perform a standard safety check according to the operations manual.
Adjust the pressure release valve to immediately lower the pressure to the normal operating range.
Record the pressure reading and report it to the maintenance department at the end of the shift.
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Three fully engaged threads
Five fully engaged threads
Eight fully engaged threads
Ten fully engaged threads
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To increase production efficiency
To identify and eliminate potential safety risks
To train employees on the use of new machinery
To assess the quality of finished products
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A flameproof gland suitable for both cable and enclosure
An increased safety gland suitable for the cable
A gland certified as Ex i and suitable for the cable
A standard industrial IP 54 gland suitable for the cable
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A crown inscribed with FLP
A hexagon inscribed IEC
A hexagon inscribed Ex
The CE marking
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To regulate the flow of voltage in a circuit
To protect against overload conditions
To detect and interrupt abnormal electrical currents
To control the frequency of alternating current fluctuations
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The equipment is intrinsically safe
That the equipment can be used on IS circuits only
That the equipment is part of an intrinsically safe system
That the enclosure contains associated IS equipment
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The equipment must be installed in a safe area
The equipment cannot be used outdoors
The equipment does not have an IP rating
Special conditions apply, refer to documentation
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It contains flammable materials
If the equipment is on fire it will continue to function
It will contain an internal explosion
It's too heavy to be used
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Heavy equipment is mounted on piles
An ignition in one part of an enclosure causes higher explosion pressure in another part
There is a build up of pressure causing material fatigue
The gas pressure causes a vent to open
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Flameproof
Increased safety
Purged
Intrinsically safe
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The maximum run time
The maximum disconnection time for stalled motor
The maximum temperature the motor will operate
The duty cycle of the motor
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IP 20
IP 44
IP 54
IP 65
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Ex n
Ex e
Ex i
Ex p
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Any apparatus
Simple apparatus marked Ex i
Only that specified in documentation
Only uncertified apparatus
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Limit the maximum energy flow to apparatus
Allow any apparatus to be installed
Allow apparatus only marked Ex i to be installed
Limit the maximum temperature of the apparatus
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3mm
6mm
30mm
50mm
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The basic requirements of working in hazardous areas
The manufacturers literature
The manufacturing standards
Panel wiring diagrams
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Remains connected
Is easily disconnected
Is fused
Is of the colour blue
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10mm
20mm
30mm
40mm
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All be spanner tight
Be tightened using a torque wrench set at 50Nm
Have only alternate bolts tightened
Be missing
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Put at least one bolt back and hang a danger notice
Put at least half the bolts back and hang a danger notice
Put all bolts back spanner tight and check the flange gaps
Put no bolts back and leave it until the next inspection
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Ex d gland
Uncertified IP 68 gland
Ex i gland
E1W gland
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1MΩ
100Ω
10Ω
1Ω
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1.5mm2
2.5mm2
4.0mm2
6.0mm2
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All cables are to be run on separate cable tray
All cables can be run with any other cables
The IS or non-IS cables needs to be armoured, metal sheathed or screened
Both the IS and non-IS needs to be armoured, metal sheathed and screened
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Any spare core
A spare core from a pair where the other is used on another circuit
A 3 core cable must be run
Use one core from a spare pair and treat the other core as an unused core
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