Answers

some text

Click image to enlarge

Image from: Trowel Occupations (2004) DfES Publications pg 152

Image from: Trowel Occupations (2004) DfES Publications pg 154

1. These dimensions could be scaled-off using a ruler.
   Why is it better to use the written numbers?
   
   
2. It is common practice for openings to have a tolerance of 10 mm. Why?
   
   
3. Look carefully at the sizes of the openings
   It is a brick building and these openings will work
   full-bricks to prevent broken bonds
   
   
4. Calculate how many bricks will fit over
   each of the openings
   
   
5. Which of the other dimensions will work bricks?
   Answer: All of them...Why?
   
   
   

ANSWERS

Take care, this may contains deliberate mistakes

QUESTION 4

910 - 10mm = 900 900 = 4 bricks 225 1810 - 10mm = 1800 1810 = 8 bricks 225 2260 - 10mm = 2250 2250 = 10 bricks  225 QUESTION 5 450 = 2 bricks 225 215 = length of 1 brick, without joint 440 = length of 2 bricks without last joint 328 = 1½ bricks = 225 x 1.5 = 337.5 5615 = 25 bricks  225 some text

Some normal writting

Trowel Occs from DfES

Click image to enlarge

Image from: Trowel Occupations (2004) DfES Publications pg 152

Image from: Trowel Occupations (2004) DfES Publications pg 154

1. These dimensions could be scaled-off using a ruler.
   Why is it better to use the written numbers?
   
   
2. It is common practice for openings to have a tolerance of 10 mm. Why?
   
   
3. Look carefully at the sizes of the openings
   It is a brick building and these openings will work
   full-bricks to prevent broken bonds
   
   
4. Calculate how many bricks will fit over
   each of the openings
   
   
5. Which of the other dimensions will work bricks?
   Answer: All of them...Why?
   
   
   

ANSWERS QUESTION 4 910 - 10mm = 900 900 = 4 bricks   225

1810 - 10mm = 1800

1800 = 8 bricks  225 some text

some text

ANSWERS Take care, this may contains deliberate mistakes QUESTION 4 910 - 10mm = 900 900 = 4 bricks 225 1810 - 10mm = 1800 1810 = 8 bricks 225 2260 - 10mm = 2250 2250 = 10 bricks  225 QUESTION 5 450 = 2 bricks 225 215 = length of 1 brick, without joint 440 = length of 2 bricks without last joint 328 = 1½ bricks = 225 x 1.5 = 337.5 5615 = 25 bricks  225 some text

Some normal writting

Image from: Trowel Occupations (2004) DfES Publications pg 152

Student Tasks

Print off this work-sheet
and complete the questions

Length & Area

Amount of Material

Follow the steps below, when ordering materials that are sold in single lengths




clickable to size

Image from: Skills for Construction (2005) DfES Publications pg 191

1. Calculate amount of material required
2. Find out the standard length
3. Divide required amount by standard length
4. Check for errors

Question 1
12 metres of pipe insulation is required
How many pack will you buy?

Image from: Skills for Construction (2005) DfES Publications pg 190

Question 2
This work requires 35 metres of guttering

Image from: Skills for Construction (2005) DfES Publications pg 191

How many packs will you buy?

Image from: Skills for Construction (2005) DfES Publications pg 191

Follow the steps below, when ordering materials that are sold in square metres

Click image to enlarge

Image from: Skills for Construction (2005) DfES Publications pg 170

some text

Length & Area

Question 1

Image from: Skills for Construction (2005) DfES Publications pg 170

The image above shows skirting board being marked out
What are the different measurements?

Question 2

Image from: Skills for Construction (2005) DfES Publications pg 170

The image above shows pipes being marked out
What are the different measurements?

Question 3
Click image to enlarge

Image from: Skills for Construction (2005) DfES Publications pg 171

Identify the different materials shown in this plan

Question 4
One side of this room is going to be wall-papered

Image from: Skills for Construction (2005) DfES Publications pg 181

Calculate the area of this wall

Question 5
The floor is going to be laid with carpet

Image from: Skills for Construction (2005) DfES Publications pg 181

Calculate the area of this floor

Question 6
The wall on this shed needs rendering

Image from: Skills for Construction (2005) DfES Publications pg 182

Calculate the area of this wall

Question 7
This wall needs painting

Image from: Skills for Construction (2005) DfES Publications pg 183

Calculate the area of the wall
Clue: It is the wall, not the window

Question 8
This wall needs painting

Image from: Skills for Construction (2005) DfES Publications pg 183

Calculate the area of the wall
Clue: It is the wall, not the door

The door needs varnishing
Calculate the area of the door

ANSWERS

Take care, this contains deliberate mistakes

Area of whole wall
3.9 x 2.5 = 9.75

Area of door
1.2 x 2.2 = 2.64

Area that needs painting
9.75 - 2.64 = 7.11 sq metres

Area of window
0.7 x 0.7 = 0.49

Area that needs varnishing
2.64 - 0.49 = 2.15 sq metres

Question 9
The 2nd Fix Carpenter is finishing these rooms. The floor
is going to be covered with wood-laminate and then edged with skirting board. Calculate all the timber required for this work, including 10% wastage. Assume the doors are 900mm

Click image to enlarge

Image from: Skills for Construction (2005) DfES Publications pg 182

ANSWERS

Take care, this may contain deliberate errors

SKIRTING BOARD

Hall

1.1 - 0.9 = 0.2
and
4.8 - 0.9 = 3.9

so amount of skirting

  4.8 +
  1.1
  3.9
  0.2
  9.0 metres

Lounge

  3.9 +
  3.5
  4.8
  3.5
15.7 metres

Kitchen

  3.2 +
  4.7
  3.2
  0.2
  3.5
14.8 metres

TOTAL

  9.0
15.7
14.8
29.5 metres

10%   of   29.5   =   29.5   =   2.95
                                10

Total amount of skirting board, including 10% wastage

29.50 +
  2.95
32.45 metres

LAMINATE FLOORING

Hall

1.1 x 4.8 = 5.28

Lounge

3.5 x 4.8 = 16.8

Kitchen

3.2 x 4.7 = 15.04

TOTAL

  5.28
16.80
15.04
37.12

10%   of   37.12   =   37.12   =   3.71
                                  10

Total amount of laminate flooring, including 10% wastage

37.12 +
  3.71
40.83 sq metres

Measurement

All resources from Dept of Education

Using Scale Rulers

A Scale Ruler converts the measurements on a drawing
to the actual size of the building

For a Scale of 1:20,
every 1mm on the ruler
is multiplied by 20

Example 1
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

25mm

So what is the actual length?

25mm x 20 = 500mm

Convert to metres

 500 = 0.5m
1000

Example 2
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

26mm

So what is the actual length?

26mm x 50 = 1300mm

Convert to metres

1300 = 1.3m
1000

We have only moved 1mm on the ruler so
why is there such a difference in these lengths?

Example 3
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

13½mm

So what is the actual length?

13½mm x 200 = 2700mm

Convert to metres

2700 = 2.7m
1000

Why are there extra lines on the scale rule?

Example 4
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

75mm

So what is the actual length?

75mm x 1 = 75mm

1:1 is full scale

As a bricklayer, what is the importance of 75mm?

Example 5
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

45mm

So what is the actual length?

45mm x 5 = 225mm

As a bricklayer, what is the importance of 225mm?

Example 6
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

15mm

So what is the actual length?

15mm x 20 = 300mm

As a bricklayer, what is the importance of 300mm?

Example 7
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

90mm

So what is the actual length?

90mm x 10 = 900mm

What do you recognise about 900mm?

Example 8
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

36mm

So what is the actual length?

36mm x 50 = 1800mm

Convert to metres

1800 = 1.8m
1000

What do you know about 1.8mm?

Example 9
Look at the image below
How many mm are shown between the arrows

Click image to enlarge


Answer

22½mm

So what is the actual length?

22½mm x 100 = 2250mm

Convert to metres

2250 = 2.25m
1000

What do you know about 2,250mm?