Electrical Installations technology - MOCK TEST (Use of the On-Site Guide only is permitted for some questions)

identify the appropriate document that details the specific dimensions of a specified type of lighting fitting
1. layout drawing
2. manufacturers data
3. installation specifications
4. circuit diagram
identify the non-statutory act/regulation from this list
1. BS7671
2. EaW
3. Hasaw
4. EPA
identify the appropriate method for a site supervisor on a busy worksite to determine who is on/off site at any time, should an emergency occur
1. use of a signing-in/out book at reception
2. only allow designated staff on site at particular times
3. use of identify badges on site to be worn at all times
4. carry out a head-count at regular times during the day
select the appropriate method to identify any damage to building fabric before carrying out electrical work in the building.
1. carry out a survey prior to starting work
2. carry out a survey after the electrical work has been completed
3. ensure any details of the damage are recorded prior to starting work
4. consult the layout drawing for specific information
identify the preferred method to protect soft furnishings from dust during electrical installation work such as drilling into the building fabric
1. use dustsheets
2. use of water spray to keep dust levels down
3. removal of all soft furnishings prior to starting work
4. use a vacuum cleaner when drilling work has ceased
identify the appropriate enclosure/fixing to be used with un-sheathed, pvc insulated single-core conductors
1. pvc trunking
2. stainless steel cable basket
3. pvc capping
4. steel cable tray
identify the appropriate installation method for a SWA multicore cable installation
1. in pvc trunking
2. in stainless steel cable basket
3. in steel conduit
4. on steel cable tray
identify the appropriate cable type for a 230v AC portable domestic appliance
1. flexible cable
2. MICC cable
3. SWA
4. pvc/pvc 'flat' cable
identify the appropriate cable type for a portable 110v AC 'site' transformer
1. pvc insulated flex
2. arctic flex
3. SWA
4. SY cable
identify the main advantage of SWA cable over pvc flexible cables
1. greater mechanical properties
2. cheaper in price
3. no specialist tools are required
4. greater flexibility
how can long runs of pvc conduit be installed to reduce the prospect of distorting and buckling due to large changes in ambient temperature.
1. use expansion couplers
2. regular through-boxes are used throughout the run
3. greater distances between saddles
4. pvc conduit must not be installed in these environments
identify the cable system that is 'hygroscopic'
1. MIMS
2. PILC
3. CAT
4. HOFR
identify the tool used to determine if an accessory is horizontally level
1. spirit level
2. plumb line
3. chalk line
4. gps
identify the tool used to determine if a conduit run is vertical
1. spirit level
2. plumb line
3. chalk line
4. gps
identify the tool used to mark-up a vertical run for a trunking installation
1. spirit level
2. plumb line
3. chalk line
4. gps
identify the minimum depth that a buried cable in a wall should be installed at without the need for additional mechanical protection
1. 50mm
2. 25mm
3. 100mm
4. 10mm
Buried cables should run in prescribed zones in when buried in walls. Identify the maximum distance downwards from the ceiling that would be deemed to be a 'safe zone' on the wall
1. 50mm
2. 150mm
3. 200mm
4. 300mm
identify the rating of an RCD used for additional protection for cables installed in partitioned walls.
1. 20mA
2. 30mA
3. 100mA
4. 13A
if an overcurrent occurs in an otherwise healthy circuit, this would be called ........
1. a short circuit
2. an overload
3. an open circuit
4. an earth fault
identify the device that operates using only the 'thermal' effect.
1. BSEN 61009
2. RCD
3. BS88-2
4. BSEN 60898
identify the device that operates using the 'current-balance' effect.
1. BSEN 61009
2. RCD
3. BS88-2
4. BSEN 60898
if a fault occurs downstream in a poorly designed circuit with poor protective device discrimination, the likely result would be....
1. only the protective device closest the fault would operate
2. only the correct protective device would operate
3. only the highest rated device would operate
4. the incorrect protective device could operate
when applying DIVERSITY to a lighting circuit in a small hotel, identify the percentage of total current demand allowed
1. 66%
2. 90%
3. 75%
4. 100% (full load)
when applying DIVERSITY to a water heater in a small shop, identify the percentage of total current demand allowed if the heater is thermostatically controlled
1. 66%
2. 90%
3. 75%
4. not allowed
when applying DIVERSITY to discharge lighting (such as fluorescent lamps), identify the multiplication factor that should be applied to the lamp wattage
1. 10
2. 5.5
3. 2
4. 1.8
identify the rated short-circuit capacity of a BS88-3 (type I) device as detailed in the On Site guide
1. 16.5kA
2. 16kA
3. 31.5kA
4. 33kA
identify the rated short-circuit capacity of a BS88-6 device at 240v
1. 16.5kA
2. 16kA
3. 31.5kA
4. 33kA
identify the rated short-circuit capacity of a BS88-6 device at 415v
1. 80kA
2. 16.5kA
3. 31.5kA
4. 33kA
identify the type of emergency light fitting the remains lit continuously
1. maintained
2. non maintained
3. sustained
4. contained
identify the type of emergency light fitting that only illuminates during a mains power failure
1. maintained
2. non maintained
3. sustained
4. contained
identify the device that gives 'no-volts' protection for rotating machines
1. DOL
2. fuse
3. circuit breaker
4. RCD
identify the maximum 'measured' Zs value allowed for a type B 16A circuit breaker to BSEN60898
1. 1.84 ohms
2. 2.19 ohms
3. 3.5 ohms
4. 1.1 ohms
identify the maximum 'measured' Zs value allowed for a type D 40A circuit breaker to BSEN60898, with a 5 second disconnection time
1. 0.88 ohms
2. 0.44 ohms
3. 3.5 ohms
4. 1.09 ohms
identify the maximum spacing for the supports for a 50mm by 50mm steel trunking when installed in a vertical position
1. 2 metres
2. 0.75 metres
3. 3 metres
4. 1.25 metres
identify the maximum spacing for the supports for a 75mm by 50mm pvc trunking when installed in a horizontal position
1. 1.5 metres
2. 1.75 metres
3. 3 metres
4. 1.25 metres
identify the maximum spacing for the supports for a 63mm diameter pvc conduit when installed in a horizontal position
1. 2 metres
2. 1.75 metres
3. 2.25 metres
4. 1.25 metres
identify the minimum height that a bare overhead lined on insulators (without intermediate support) should be installed at when passing across a road crossing
1. 3 metres
2. 5.8 metres
3. 6 metres
4. 5.2 metres
determine the minimum conduit size to accommodate 2x 2.5 mmsq and 7x 10 mmsq, stranded copper conductors in a 2 metre straight conduit run
1. 38mm conduit
2. 20mm conduit
3. 25mm conduit
4. 32mm conduit
determine the minimum conduit size to accommodate 3x 2.5 mmsq and 3x 6 mmsq, stranded copper conductors in a 3.5 metre conduit run incorporating one bend
1. 16mm conduit
2. 20mm conduit
3. 32mm conduit
4. 25mm conduit
how many 6 mmsq PVC insulated, stranded copper cables can be safely accommodated in a 100mm x 25mm trunking
1. 63
2. 47
3. 50
4. 55
a 100mm x 50mm trunking already accommodates 16x 25 mmsq PVC (BS6004) insulated, stranded copper conductors. How many more 10 mmsq conductors of the same type could be safely accommodated
1. 30
2. 26
3. 33
4. 24
identify the maximum spacing for the supports for a 25mm flexible conduit when installed in a vertical position
1. 0.6 metres
2. 1.75 metres
3. 2.25 metres
4. 1.25 metres
identify the tripping current range for a type 'B' circuit breaker
1. 3 to 5 In
2. 5 to 10 In
3. 10 to 50 In
4. 2.7 to 4 In
identify the tripping current range for a type 'D' circuit breaker
1. 5 to 10 In
2. 5 to 10 In
3. 10 to 50 In
4. 2.7 to 4 In
identify the type of SPD protection required only where there is a risk of direct lightning current
1. type 1
2. type 2
3. type 3
4. type 4
identify the type of SPD protection that are used near terminal equipment
1. type 3
2. type 2
3. type 1
4. type 4
identify the part of the Buildings regulations (2010) that covers 'energy efficient lighting'
1. part A
2. part L
3. part P
4. part M
identify the part of the Buildings regulations (2010) that covers 'electrical safety - dwellings'
1. part A
2. part L
3. part P
4. part M
identify the part of the Buildings regulations (2010) that covers 'the heights of socket utlets and switches'
1. part A
2. part L
3. part P
4. part M
identify the IET guidance note applicable to electrical 'Inspection and testing'
1. GN 3
2. GN 1
3. GN 7
4. GN 5
identify the system of earthing that uses the metallic armouring of the supply cable as the earthing conductor
1. TN-S
2. TN-C
3. TN-C-S
4. IT
identify the system of earthing that uses a PEN conductor
1. TN-C-S
2. TN-C
3. TN-S
4. IT
identify the minimum IP degree of protection for SELV equipment installed in zone 0 in a location containing a bath or shower
1. IPx7
2. IPx5
3. IPx8
4. IPx3
identify the maximum 'measured' Zs value allowed for a BS88-2 fuse rated at 32A with a disconnection time of 0.4s and a 1.0mmsq protective conductor
1. 0.62 ohms
2. 0.6 ohms
3. 0.79 ohms
4. 0.8 ohms
identify the factor for a 225mm by 100mm trunking
1. 9662
2. 9962
3. 7167
4. 7767
identify the Thermal Insulation Derating factor for insulation that is 400mm in length
1. 0.51
2. 0.4
3. 0.5
4. 0.41
identify the recommended height of switches and socket outlets and controls
1. between 450mm and 1200mm
2. between 250mm and 1000mm
3. between 150mm and 950mm
4. between 350mm and 1300mm
identify the harmonised colour of a 'functional earthing conductor' with the alphanumeric identification 'FE'
1. pink
2. green/yellow
3. white
4. grey
Which one of the following uses sunlight to produce hot water?
1. solar voltaic
2. solar thermal
3. biomass
4. P.V
Which one of the following uses sunlight to produce electricity?
1. photo voltaic
2. solar thermal
3. CHP
4. micro Hydro
Which one of the following uses the waste heat from producing electricity to produce hot water and heat for houses and businesses?
1. photo voltaic
2. solar thermal
3. CHP
4. burning hydrogen
Which one of the following is a type of 'green' energy production?
1. micro-renewable
2. solar thermal
3. nuclear
4. battery storage

Electrical Installations technology - MOCK TEST (Use of the On-Site Guide only is permitted for some questions)

Electrical Installations Technology - MOCK TEST - 20 questions from a large bank of questions. (Use of the On-Site Guide only is permitted for some questions)