Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Carpentry Level 3 > I3 > Flashcards

I3 Flashcards

1
Q

What are the purposes of windows

A

Provide light and ventilation to the inside of a building and allows occupants to see out.

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

Why are triple - glazed units expensive

A

Extra plane of glass

Frame size bigger

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

What does the term “low-e” mean

A

Associated with reflective films

Means film will not let radiant heat waves emit into or from the building

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

What type of heat loss does a reflective film reduce

A

Radiant heat loss

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

How do double-glazed units reduce heat loss

A

Air space provides a small amount of insulation against heat loss by conduction

The film on the surface of the additional pane also adds insulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What causes the seal in a sealed unit to fail

A

Double glazed windows played on south side of building

Commercial cleaners like ammonia or vinegar

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

Most effective way to reduce heat loss through windows

A

Reduce the window area

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

What is a million used for

A

Divides frame vertically and separates the window units

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the slope of the sill

A

11 degrees

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

Describe a thermal break

A

Insulating material incorporated into the metal framed windows

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

Why aren’t vinyl frames commonly available in dark colours

A

Darker colours absorb heat and this may distort the frame or sash

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

What is a rebate flange used for

A

Hides the old frames

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

What types of windows should butt hinges not be used for

A

Awning or hopper as the weight of the widow ales it difficult to control when opening or closing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What types of windows are commonly fitted with sliding hinges

A

Casement, awning and hopper style windows

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

When are casement adjusters needed

A

When butt hinges are used to support the sash

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What’s the purpose of a snubbed

A

Used midway between hinges of tall casement windows to prevent bowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Whats the purpose of a lifter

A

Under latch side of a sagging sash to support the weight when the window is closed

18
Q

What is the fastener spacing for windows

A

150-200 mm O.C

19
Q

Minimum slope for a sill or head flashing

A

6%

20
Q

Size of bead of caulking should be used between the flank and the wall

A

3/8

21
Q

Why are nails bent over the top flange

A

Allow window to move

22
Q

What products should you avoid when cleaning window hardware

A 
Vinegar 
Ammonia
Citrus based cleaners
Abrasive cleaners 
Industrial strength cleaners
23
Q

What problem can occur if using silicone as a lubricant

A

Can cause plastic hardware to become brittle

24
Q

Most economical and common window

A

Sliding windows

25
Q

How long is the seal on a window guaranteed for

A

5 years unless non compatible glass cleaner is used

26
Q

Which window opens outward and provides excellent ventilation

A

Casement windows

27
Q

Conductive heat loss

A

Reduced with thermal breaks and better insulating frame materials

28
Q

Radiant heat loss

A

Reduced using films such as low-e

29
Q

Convection heat loss

A

Reduced by filling the air space in double or triple glazed windows with a heavy gas such as argon

30
Q

Air leakage

A

Reduced by using good quality weather stripping

31
Q

How do you increase the energy efficiency of a window

A

Increase the distance between lanes

32
Q

Size of un obstructed opening area of bathroom, bedrooms, kitchens etc

A

.28m2 (3 sq ft)

33
Q

Width of the rabbit in the window jamb and depth

A

1 3/8 thick 1/2 deep

34
Q

What is a million

A

Divides the frame vertically

35
Q

What is a Muntin

A

Divides lights in one sash

36
Q

What’s a transom

A

Divides the frame horizontally

37
Q

What is a sash

A

The frame for the glass or window

38
Q

Most common window frame material

A

Vinyl

39
Q

Advantage of butt hinges

A

Allow a full opening of the sash for fire escape (egress) purposes

40
Q

When using sliding hinges, the width of the sash should not exceed __% of the height

A

66%

41
Q

First step when applying p&s around a window

A

100x100 each bottom corner , 38mm into the opening each way

Carpentry Level 3 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions