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exam questions > 6. Retrofit Contract information > Flashcards

6. Retrofit Contract information Flashcards

1
Q

1 A thermal bypass is where more conductive materials exist within an insulation layer. True or false?

A

False

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2
Q

2 Where moist (humid) air meets a cool surface, the first reaction is:

Mould growth

Fungal attack
Condensation

Rising damp

A

Condensation

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3
Q

3 Which of the following is positioned on the inner side of the insulation, to reduce vapour transfer through a building element?

Vapour permeable construction

Vapour control layer

A

Vapour control layer

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4
Q

4 Ventilation from ‘wet’ rooms (i.e., kitchens and bathrooms), which may be intermittent or continuous is known as

Whole building

Purge

Extract

Natural

A

Extract

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5
Q

5 Which of the following organisations is a not-for-profit training company, specifically dedicated to improving the capabilities of the UK retrofit sector?

TRA
UKCMB
LABC
BAFE

A

UKCMB

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6
Q

The person responsible for meeting with the property owners in the first instance and discussing options for improving their home’s energy performance is the retrofit:

Coordinator
Advisor
Designer
Evaluator

A

Advisor

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7
Q

PAS 2030‑2019, is intended specifically for the retrofit:

Installer
Designer
Advisor
Evaluator

A

Installer

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8
Q

A piece of equipment used for looking inside an existing cavity is known as a:

Hydroscope
Camscope
Borescope
Miniscope

A

Borescope

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9
Q

The most likely defect caused by the problem in the image below is:

Rising damp
wet rot
dry rot
Penetrating damp

A

Penetrating damp

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10
Q

Moisture in the air that forms on the colder part of the building fabric is best known as

Rising damp
Efflorescence
Condensation
Ammonia salt

A

Condensation

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11
Q

When a DPC fails in a cavity wall at ground-floor level, the most likely outcome is condensation, true or false?

A

False - the most likely outcome is rising damp

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12
Q

Fungus that is recognised by a flat, mushroom shape and attacks wet underfloor timbers (20 to 30% moisture content), is a sign of:

Dry Rot
Wet Rot
Woodworm
Mould Growth

A

Dry rot

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13
Q

Materials delivered to site should be checked for accuracy against:

A purchase order

A delivery note

An invoice

A remittance advise

A

A purchase order

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14
Q

According to PAS 2035; ‘whatever the scale of the retrofit project, a technically sound and usually cost-effective approach’ is the one known as fabric:

intelligence
First
Friendly
Smart

A

First

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15
Q

When repointing defective brickwork, how deep should the joint be to receive the new mortar?

5mm
10mm
15mm
20mm

A

10mm

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16
Q

The best option for insulating hard-to-reach areas of the loft is:

Blown insulation

Rolls of mineral wool

Rigid boards

Semi rigid batts

A

Blown insulation

17
Q

In a flat roof construction, when the insulation is placed above the roof deck it is referred to as a cold roof, true or false?

A

False - a cold roof or cold deck is where the insulation is within or below the roof structure

18
Q

Typical materials used for blown cavity wall fill is polystyrene beads and:

PIR
PUR
Aerogel
Glass mineral wood

A

Glass mineral wood

19
Q

One of the main issues when EWI is selected, is the major disruption to the occupants caused by the work, true or false?

A

False - this is more likely with IWI

20
Q

When custom built systems for insulating external solid walls, the two materials most likely to be used are mineral wool and:

Aerogel
Spayed cellulose
XPS - Extruded Polystyrene Insulation
Polystrene beads

A

XPS - Extruded Polystyrene Insulation

21
Q

When installing sold internal wall insulation on a framing system, what are the two main materials used

XPS, ESP, MINERAL WOOD

BATTERNS, XPS AND AREOGEL

TREATED TMBER BATTENS, METAL LINING CHANNELS OR STUDS.

A

TREATED TMBER BATTENS, METAL LINING CHANNELS OR STUDS.

22
Q

One of the main reasons for poor ventilation under a suspended floor is:

Not enough insulation

Too much insulation

Fungal attack

Blocked or missing airbricks

A

Blocked or missing airbricks

23
Q

Laying insulation boards and a floor covering over the existing floor to improve its insulation is called an ‘elevated floor’, true or false?

A

False - its called a floating floor

24
Q

Compared to high-performance walls, at what rate do windows with a U-value of 0.8 W/m²K lose heat at?

Twice
Three times
Five times
10 times

A

Three times

25
Q

LEDs have a longer life than CFLs, as well as better performance in terms of lumens per watt, true or false?

A

True

26
Q

The image shows solar

thermal flat plate

Thermal evacuated tubes

PV tiles

PV panels

A

Thermal evacuated tubes

27
Q

New or replacement windows should always be fitted in place after EWI is installed, true or false?

A

False - they should always be fitted before the EWI

28
Q

In terms of general fixing instructions, SuperQuilt must be installed with a 150mm overlap, with all joints taped with YBS 75mm foil tape, true or false?

A

False 50mm overlap

29
Q

What is the combined U‑value of SuperQuilt and 90mm PIR (0.022 W/mk) when used for an over joist flat roof?

0.13W/m2K

0.15W/m2K

0.18 W/m2K

0.25 W/m2K

A

0.15W/m2K

30
Q

On foil-taped joins SuperQuilt should be overlapped at each joint by approximately 50mm and stapled onto the battens; the joints should be sealed using:

25mm foil tape

50mm foil tape

75mm foil tape

100mm foil tape

A

75mm foil tape

exam questions (8 decks)

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