1Match the titles to the parts of the text:

1).Manual

2). pipe joint or coupling

3).Parts of pipe joint

4).Illustration of pipe joint

A	B	C	D

2. Match the notions to their definitions:

1. tapering	a)an elbow of the pipe
2. sleeve nut	b)To become gradually narrower or thinner toward one end.
3. taper ring	c) A case into which an object or device fits
4. pipe-bend	d) A tapering ring used in metal crafting , usually made of steel , which is used to tuff a hole

1	2	3	4

3.What statements are true or false:

1). The pipe joint or coupling forming the subject of the present invention, Is applicable for use with pipes of only synthetic material.

2). The pipe joint or coupling is also suitable for use with metal pipes.

3). If composed of suitable material the sealing ring will be contracted into good sealing engagement with the pipe.

4). The pressure ring is preferably formed with two or more square faces

5). The tapered boring 4 receives an internally tapered sealing ring 10, the latter having a slightly finer taper than the boring,

6). The taper of the sealing ring 10 is preferably in the region of 10°.

1	2	3	4	5	6

4. Choose the right statement:

1). The pipe joint or coupling forming the subject of the present invention, although applicable for use with pipes of any material, is particularly concerned with pipes or tubes of … .

a) ferrous materials,

b) semi-flexible character,

c) hard materials.

2). A pipe joint or coupling in accordance with the invention comprises a body bored to receive the extremity of the pipe and to form … .

a) a hook,

b) an elbow,

c) an inter­nal shoulder.

3). If composed of suitable material the sealing ring will be … .

a) contracted into good sealing engagement with the pipe;

b) slide along the pipe;

c) glued to the pipe.

5. Fill in the gaps.

The pipe joint or coupling (1)____ the subject of the present invention, although (2)____ for use with pipes of any material, is particularly (3)____ with pipes or tubes of semi-flexible character.

1). A) forming, b)having been formed, c)are forming;

2). A)applicant, b)appliance, c) applicable.

3). A)concentrated, b concerned,), c)conducted.

6. Complete the sentences.

a)suitable, b)abut, c)longitudinally, d)engagement, e)contract, f)annular, g)seal, h)tapered, i)bored, j)accordance.

The pipe joint or coupling is 1)____ for use with metal pipes. A pipe joint or coupling in 2)____ with the invention comprises a body 3)____ to receive the extremity of the pipe and to form an inter­nal shoulder or sitting against which the pipe can 4)____, a sleeve nut

surrounding the pipe and in threaded 5)____ with the body, a 6)____ split pressure ring having an externally arranged ta­pered extremity for engagement, so as to 7)____the pressure ring into gripping engagement with the pipe and an 8)____ sealing ring in abutting engagement with the pressure ring and formed with a fine taper for engagement with a 9)____surface in the interior of the body for the purpose of maintaining a good 10)____ consequent upon tightening of the nut on the threaded part of the body.

Keys

Unit 1

1. A-6, B-2, C-5, D-1, E-4, F-3.

2. 1) d, 2) c, 3) a, 4) b.

3. 1-F, 2-T, 3-F, 4-T, 5-T, 6-T.

4. 1-a, 2-c, 3-c.

5. 1-a, 2-b, 3-a.

6. 1-e, 2-c, 3-a, 4-b, 5-d.

7. 1-7;

2- 3, 12, 14, 17;

4-8, 19;

5-9;

6-16;

10-15;

11-18;

12-13.

Unit 2

1. A-3, B-4,C-5, D-2,E-1.

2. 1) d), 2) c), 3) a), 4) b).

3.1-T, 2-F, 3-T, 4-T, 5-F, 6-T.

4. 1-b, 2-a, 3-c.

5. 1-b,2-c,3-a.

6. 1-b, 2-d, 3-a, 4-c, 5-e.

7. 1-13,162-12.

3-5.

6-7, 9.

8-14,10.

17-5.

Unit 3

1. A-3, B-5, C-4, D-2, E-6, F-1.

2.1-b, 2-a, 3-d, 4-c.

3. 1-F, 2-F, 3-T, 4-T, 5-F, 6-T.

4. 1-b, 2-c, 3-a.

5. 1-c, 2-a, 3-b, 4-a, 5-b.

6. 1-g, 2-d, 3-b, 4-a, 5-c,

6-e, 7-f, 8-j, 9-h, 10-i.

7. 1-8,11,

2-13,

3-9,24,

4-5,

6-12,

7-14,15,17,

10-16,

18-20,

19-21,

22-23.

Unit 4.

1. A-2, B-1, C-4, D- 5, E- 3.

2. 1-c, 2-d, 3-a, 4-b.

3. 1-F, 2-F, 3-T, 4-T, 5-T, 6-F.

4. 1-a, 2-b, 3-c.

5. 1-a, 2-c, 3-a.

6. 1-o, 2-n, 3-m,4-l, 5-k, 6-p, 7-j, 8-i,

9-h, 10-g, 11-f, 12-e, 13- d, 14-c, 15- b, 16- a.

7. 1- 15, 2- 3, 4- 11, 5- 14, 6- 13, 7- 10, 8- 9.

UNIT5

1. A-2, B-4, C-1, D-5, E-3.

2. 1-c, 2-a, 3-d, 4-b.

3. 1-F, 2-T, 3-T, 4-T, 5-F, 6- F.

4. 1-a, 2-c, 3-a.

5. 1-c, 2-a, 3- b.

6. 1-b, 2- d, 3- a, 4- e, 5- c, 6- f.

7. 1-3,5; 2-6; 4-8; 7-12; 9-13; 10-16; 11-15,14; 17-18,19.

Unit 6

1. A-4, B-1, C-2, D-3.

2. 1-d, 2-a, 3-b, 4-c.

3. 1-T, 2-F, 3-T,4-F, 5-T,6-F.

4. 1-a, 2-b, 3-a.

5. 1-a, 2-c, 3-b.

6. 1-c, 2-f, 3-a, 4-d, 5-b, 6-g, 7-e, 8-h.

7. 1-5,10,14,18;

2-15,17,19;

3-16;

4-6,11;

7-8;

9-12;

13-20.

Unit 7

1	2	3	4	5	6	7
A-6	1-B	1-T	1-b	1-a	1-c	1-12,13,14.
B-5	2-D	2-F	2-c	2-b	2-g	2--15
C-1	3-A	3-T	3-a	3-a	3-f	3-16,19
D-3	4-C	4-F		4-b	4-e	4--9
E-4		5-F			5-g	5-10,11,17
F-2		6-T			6-i	6-18,20
					7-h	7--8
					8-j
					9-k
					10-l

Unit 8

1	2	3	4	5	6	7	0
A-3	1-c	1-F	1-a	1-a	1-c	a-e
B-2	2-d	2-T	2-c	2-c	2-a	b-v,x,y,z
C-1	3-a	3-F	3-c	3-c	3-q	c-w
D-5	4-b	4-T		4-b	4-e	d-u
E-4		5-T			5-f	e-t
		6-F			6-g	f-n,s
					7-k	g-h,l
					8-j	i-o,r
					9-l
					10-m

Unit 9

1	2	3	4	5	6	7	0
A-4	1-d	1-T	1-b	1-a	1-c	a-c,I,j.
B-1	2-a	2-T	2-a	2-b	2-e	b-g,k,l,m,n
C-2	3-b	3-F	3-b	3-b	3-b	d-o,p,q,r,f
D-3	4-c	4-F		4-c	4-a	e-s,t,u,w
		5-T		5-b	5-d
		6-T			6-f
					7-g
					8-h
					9-i
					10-k

Unit 10

1	2	3	4	5	6	7	0
A-2	1-b	1-F	1-b	1-c	1-c	a-f
B-1	2-c	2-T	2-a	2-c	2-e	b-g
C-3	3-d	3-F	3-b	3-a	3-a	c-c-g
	4-a	4-T		4-c	4-d	d-h
		5-F			5-f	e-l
					6-b

Unit 11

1	2	3	4	5	6	7	0
A-3	1-c	1-F	1-b	1-b	1-i	a-j
B-1	2-a	2-T	2-b	2-c	2-j	b-i
C-2	3-d	3-T	3-a	3-a	3-f	c-e
D-4	4-b	4-F			4-b	f-h
		5-F			5-c	k-d
		6-T			6-d	g-l
					7-a
					8-e
					9-g
					10-h

Unit12

1	2	3	4	5	6	7
A-3	1-d	1-T	1-c	1-a
B-1	2-a	2-F	2-a	2-c
C-2	3-b	3-T	3-b	3-a
D-5	4-c	4-F
E-4		5-T
		6-T

Unit13

1	2	3	4	5	6	7-A	0
A-3	1-d	1-T	1-b	1-c	1-i	1--8
B-1	2-c	2-F	2-a	2-a	2-h	7--14
C-4	3-a	3-T	3-c	3-b	3-c	9--15
D-2	4-c	4-F		4-a	4-g
		5-F		5-a	5-b
		6-F		6-c	6-e
					7-f
					8-d
					9-a

Unit14

1	2	3	4	5	6
A-4	1-c	1-T	1-b	1-b
B-2	2-a	2-F	2-a	2-a
C-1	3-b	3-F	3-b	3-c
D-3	4-d	4-T
		5-T
		6-F

Unit15

1	2	3	4	5	6
A-4	1-b	1-T	1-b	1-b
B-2	2-a	2-F	2-a	2-a
C-3	3-d	3-F	3-c	3-b
D-1	4-c	4-T
		5-F
		6-T

Unit16

1	2	3	4	5	6		0
A-2	1-b	1-F	1-b	1-a	1-a
B-3	2-c	2-T	2-c	2-c	2-j
C-4	3-d	3-T	3-a	3-b	3-i
D-1	4-a	4-F			4-b
		5-F			5-d
		6-T			6-c
					7-e
					8-f
					9-h
					10-g