JH APC > Construction Tech - E/O SoS > Flashcards

Construction Tech - E/O SoS Flashcards

(70 cards)

Study These Flashcards
1
Q

What is substructure?

A

All elements of work that are undertaken below the damp proof course that provides the basis for the superstructure to be constructed upon.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is superstructure?

A

All internal and external works items above the damp proof course, including external walls, stairs, roof, structural walls, suspended ceilings, and raised floors.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the typical components of site investigations?

A
  • Boundary hedges & fencing.
  • Existing trees.
  • Size, depth and location of services including gas, telephone, electricity, water & drains.
  • Existing buildings.
  • Ground water conditions.
  • Soil investigations.
  • Trial pit information.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the purpose of soil investigations?

A

To determine the suitability of the site for the proposed works and determine adequate and economic foundation design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the main site considerations?

A
  • Access considerations.
  • Storage considerations.
  • Accommodation.
  • Temporary services.
  • Plant.
  • Fencing & hoarding.
  • Health & Safety risks.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are temporary works?

A

Temporary works do not normally appear on construction drawings but may be required depending on the construction methodology being used.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a tower crane?

A

A tall crane used for lifting objects into high places, with a boom allowing longer reach and 360° access.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are some considerations during the erection and operation of a tower crane?

A
  • A longer boom reduces the payload capability.
  • A smaller crane is usually used to erect a tower crane.
  • Weather conditions, particularly high winds, could prevent operation.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a scaffold?

A

A temporary working platform erected around the perimeter of a building or structure to provide a safe working place at a convenient height.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is shoring?

A

A form of temporary support given to existing buildings to prevent damage or injury due to collapse.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a borehole?

A

A borehole can be used for soil investigation or geothermal heating solutions, suitable for foundations over 3m deep.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are retaining walls?

A

Structures that support and retain soils laterally at different levels on two sides.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the main types of excavation for forming basements?

A
  • Open excavations.
  • Perimeter Trench Excavation.
  • Complete Excavation.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a basement?

A

A storey constructed below ground level.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the 3 different types of basement construction?

A
  • Retaining wall and raft.
  • Box and Cellular raft.
  • Piled solution.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the 3 main methods of waterproofing a basement?

A
  • Dense monolithic.
  • Tanking.
  • Drained Cavity solutions.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is scabbling?

A

A technique utilizing piston driven carbide tipped heads to pulverise concrete or brittle coatings.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is an upstand?

A

A vertical strip or skirting at the junction of roofing and an abutment wall

Can also refer to the roofing itself or an apron flashing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is post tensioned concrete?

A

Concrete is cast around ducts or sheathing for tendons, stressed after curing using hydraulic jacks

Used for site-stressed insitu components or joining pre-cast units

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is formwork?

A

Anything holding fresh in-situ concrete until it hardens

Includes plywood shutters, steel pan forms, and falsework

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is slip forming?

A

A method for constructing repetitive structures with moving formwork during installation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is jump forming?

A

Casting a significant height of concrete, moving the whole formwork module up to repeat the process

Slower and cheaper compared to slip forming

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

How are window openings addressed in a brick block cavity wall?

A
  • Cavity trays prevent water penetration
  • DPC stops moisture rising
  • Lintels support wall load above windows
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the size of a standard brick?

A

215mm x 102.5mm x 65mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is a frog in a brick?
An indentation in the bed face of a brick, usually on top ## Footnote Bricks should be laid with the frog facing up for strength
26
How many bricks are in a square meter?
About 60 bricks per m2
27
What are the different types of brick bond?
* Stretcher bond * English bond
28
What is an air brick?
A perforated brick allowing ventilation into a room or underfloor space
29
What factors affect the choice of materials for internal partitions?
* Fire rating requirements * Noise restrictions (Db ratings) * Visuals (opacity vs. transparency) * Fixed or movable * Strength requirements
30
What are the different types of screed?
* Bonded Screeds * Unbonded Screeds * Floating Screed * Resin Bonded Screed
31
What is the purpose of a threshold strip?
A lightly rounded metal strip over the joint between floor finishes to prevent fraying and provide aesthetic finish
32
What are the main components of a hipped end pitched timber roof structure?
* Principle Rafters * Jack Rafters * Ridge boards * Wall plates * Hip rafters * Valley rafter * Purlins * Battens * Coverings
33
What are the elements of a flat roof?
* Joists * Furrings * Particle board * Felt * Stone chippings
34
What are the characteristics of Built-up felt?
* Constructed with three layers of felt * Covered with stone chippings * Common but can be punctured
35
What is asphalt roofing?
* Mastic asphalt with aggregate and bituminous binder * Poured on site * Hard wearing with potential for a 60-year guarantee * Requires heating to 200 degrees C ## Footnote Can be dangerous in a working environment
36
What items would you expect on a timber door with a half-hour fire rating?
* 3 hinges * Intumescent strip * Self-closing device * 6mm thick wired glass panel (if present)
37
What is an MF ceiling?
Metal Frame ceiling system.
38
What are the benefits of a metal grid ceiling?
* Quicker to construct * Allows service runs through the void * Easy access for repairs * Damaged tiles can be replaced
39
What is the difference between rolled and carpet tiles?
* Rolled carpets: Better quality, more expensive, used in dwellings * Carpet tiles: Harder wearing, cheaper, used in offices and hospitals ## Footnote Carpet tiles are easier to maintain and replace
40
What is top down construction?
Construction method that speeds up building with basements, allowing simultaneous construction above and below ground
41
What is bottom up construction?
Traditional method forming the basement and then working upwards, often with a longer programme duration
42
What is a three phase electrical supply?
An AC supply with three voltages 120 degrees out of phase, cheaper and easier for electricity transmission
43
How is power distributed to floor boxes in a raised floor?
* Incoming power connects to a low voltage switchboard * Switchboard connects to a distribution board * Distribution board has an under floor busbar with sockets for floor boxes
44
What is Cat II lighting?
Cat II refers to luminaires with a Unified Glare Rating (UGR) <19, suitable for screen-based tasks.
45
What is a syphonic drainage system?
An alternative to gravity drainage, using a vacuum to suck water into drain pipes without needing a gradient ## Footnote Allows the use of narrower down pipes
46
What types of lifts are available?
* Passenger lifts * Residential lifts
47
What are the advantages of syphonic drainage?
Narrower down pipes can be used.
48
What are passenger lifts?
Lifts specialized for services like hospitals with front and rear entrances.
49
What is a residential lift?
A lift that may accommodate one person or more than a dozen.
50
What are platform lifts?
Specialist lifts designed to move a wheelchair and typically accommodate one person with a maximum load of 340kg.
51
What distinguishes freight lifts from passenger lifts?
Freight lifts are designed to carry goods and often accommodate passengers, with capacities from 2,300 to 4,500 kg.
52
What is a dumbwaiter?
A small freight elevator used for moving small items like dishes or books, typically driven by a small electric motor. ## Footnote Capacity is limited to about 750 lb (340 kg).
53
What fire safety provisions are expected in an office block?
* Maximum occupancy listings * Fire exits with signage * Accessible fire extinguishers and alarms * Restricted use of flammable materials * Fire alarm control panels
54
What are automatic fire sprinklers?
Heat-activated sprinklers tied into a network of piping with water under pressure.
55
What triggers an automatic fire sprinkler to activate?
When the heat raises the sprinkler temperature to its operating point, causing a solder link to melt or a glass bulb to shatter.
56
What is the refrigeration cycle in air-conditioning?
A heat pump transfers heat from a lower temperature source to a higher temperature sink, commonly used in air conditioning.
57
How does an evaporative cooler work?
It draws outside air through a wet pad, reducing the sensible heat of the incoming air.
58
What are absorptive chillers?
Chillers that use gas turbines' exhaust heat to produce cold water for cooling.
59
What is a VAV (Variable Air Volume) AC System?
A system that varies airflow at a constant temperature to meet changing heat gains.
60
What components make up a VAV system?
* Supply and return ductwork * VAV box (terminal unit) * Air terminals
61
What does a VRF (Variable Refrigerant Flow) AC System do?
Provides simultaneous heating and cooling with multiple indoor units that can operate independently.
62
How are fire barriers formed in suspended ceilings?
Barriers are installed between the soffit of the floor above and the suspended ceiling to compartment the ceiling void.
63
What is a UPS?
An uninterruptible power supply that maintains continuous power to essential equipment.
64
Why are generators installed in buildings?
To act as a backup power supply in case the primary power fails.
65
What is busbar trunking?
Bare copper or aluminum conductors fixed inside trunking to distribute heavy-duty electrical power.
66
What do the abbreviations FCU, AHU & VAV stand for?
* Fan Coil Unit (FCU) * Air Handling Unit (AHU) * Variable Air Volume System (VAV)
67
What types of bridge construction are there?
* Beam Bridge * Arch Bridge * Suspension Bridge * Moveable Bridge (Swing, Draw, or Lift bridge)
68
How does a cable stayed bridge work?
The load is transferred through wires to towers and into ground anchorages.
69
What is the difference between a tower and a pier in bridge construction?
* Towers connect to cable stays and transfer load * Piers support the bridge deck
70
What is a typical programme for a new build structure?
* Site clearance * Enabling works * Site setup * Haul & access roads * Setting out * Excavation * Cast foundations * Frame erection * Cladding * Roof * Floors * Services * FF&E * Testing * Commissioning * Landscaping * Snagging
JH APC
flashcards
Decks in class (12)
# Cards
Brainscape helps you reach your goals faster, through stronger study habits.
© 2026 Bold Learning Solutions. Terms and Conditions