SOLUTION EXAM SECTION I (20p) 13-14

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25 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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SOLUTION EXAM SECTION I (20p) 13
-
14


MULTIPLE CHOICE (10 p) = PENALTY: 3 wrong answer =
-
1



a

b

c

d


a

b

c

d


a

b

c

d


a

b

c

d

1


XXX



6

XXX




11




XXX

16

XXX




2

XXX




7




XXX

12

XXX




17



XXX


3




XXX

8



XXX


13


XXX



18



XXX


4


XXX



9



XXX


14




XXX

19



XXX


5

XXX




10

XXX




15

XXX




20




XXX




a

b

c

d


a

b

c

d


a

b

c

d


a

b

c

d

1

XXX




6

XXX




11

XXX




16



XXX


2




XXX

7




XXX

12

XXX




17

XXX




3

XXX




8



XXX


13



XXX


18

XXX




4


XXX



9



XXX


14



XXX


19




XXX

5


XXX



10




XXX

15



XXX


20


XXX




CORRECT THE MISTAKES (1p)

The

iron is
very
WIDELY

used
in machine components
despite
of


CORRODING/ THE FACT THAT IT
CORRODES

corrode

MORE EASILY

easier

than other
s

metals

READING COMPREHENSION (4p
)

(1): REINFORCED CONCRETE: Translate
into Spanish:

HORMIGON ARMADO

(2) YET Give a synonym:

HOWEVER

(3) BY COMPARISON means in this text the same as: a) likely b
) unlikely

c) similarly d) for example :

(4) THEY: Give the referent:
TRADITIONAL ARCHED BRIDGES

(5) THE FORMER: Give the referen
t
:

A THI
N

POLYMER FRAME

(6) AS: Give a synonym

BECAUSE

(7) Stiff = give a synonym

RIGID


FILL IN THE GAPS (5p) (……. GRAMMAR; ________ WF/VOC)

The properties of steel can be changed
IN MANY WAYS
.
One of
THE MOST WIDELY USED METHODS

is
ACCORDING TO

the amount of carbon
THAT IT CONTAINS
, because
THE HIGHER

the carbon content,
THE LESS
SOFT

it is.
ON THE OTHER HAND
,

the properties of steel can also be changed by heat
TREATMENT.

This is the term
GIVEN


to a number of processes
BY WHICH

the structure o
f the metal is altered. One of these processes is ANNEALING,
WHICH CONSISTS OF HEATING

the metal above its critical temperature and then cooling it slowly.
AS A RESULT,

the
metal
BECOMES


harder and
MORE EASILY

machineable
SINCE

this process prevents inter
nal stresses
FROM
OCCURRING.

UNLIKE

annealing, in the process of
HARDENING

the metal is harder but
VERY BRITTLE
.
To avoid this problem, we can
use tempering. With this process we get a metal that is
MUCH TOUGHER

than
THAT OBTAINED

in annealing.