Tashkent Institue of Architecture and Civil engineering

3 Complete these sentences wit h words t odescribe shapes.
1 The pendulum in Taipei 101 is cylindrical
2 This page is -rectangular
3 M y cup of coffee is –cylindrical
4 A 90° cross-section of a pipe is -triangular
5 Many steel beams are-square

Listening 6 _______ _ Listen t o a structural engineer describing the dimension s of two beams: an I-shaped cross-section and a standard channel cross-section, and a rod. Complete these tables.

I shaped cross section
Flange width: :	1- 12.855 inch
Flange thickness:	2-0.960 inch
Web thickness	3-0.605 inch
Beam height:	4-24.48 inch
Area	5-39.5 inch^2

Standard channel cross-section
Depth (h):	15 inch
Width (W)	3.520 inch
Web thickness (s)	0.520 inch
Area:	11.8 inch^2

Rod
Radius (r):	13mm
Length (I)	3 m

7 Write these dimensions in words .
1-2.345-two point three four five
2-0.146-oh point one four six
3-35.290-thirty five point two nine zero
4-63.38- sixty three point three eight
5-3.402-three point four oh two
.
Vocabular y 1 Look at these cross-sections. Calculate the areas.

1-30 times 20 equals to 600 mm^2\

2-3.14*5² equals 3.14*25=78.5 inch
3-25*25=625mm²

2 Calculate these volumes. Compare your answers with a partner.

1-4*4*4=64
2-3.14²*8sm=78.87sm³
3-4*5*0.5=10

3 The answers t o these calculations are incorrect. Correct the answers and then compar e wit h a partner.
1) 3x4=1 2
2) 16/ 8 = 2
3 )V25 = 5
4 )18-1 5 = 3
5) 76 + 32 = 108

Writing 1 Write the noun (n) and adjective (adj) for each shape

1-triangle/2-a triangular”

3-I shape//4-I shaped
5-a circle/6-circular
7-a square /8-squarical
9-a cylinder/ 10-a cylindrical
11-a sphere/12- spherical
13-rectangle/14-rectangular

2 Complete this text wit h the words in the box.