III. Skim the text to match the clauses together to make sentences.

A

1 Thus, a fixed-polarity magneticfield is maintained

2 When the field winding rotates, its magnetic flux passes

3 The ac in the ac generator armature windings flows

4 The stationary member of the generator consists of

5 Both ac and exciter terminal boards are

6 All brushrigging is on the generator and has a brush cover.

7 Theslotted-hole mounting provides

8 The capacitors connected between theexciter

B

a armature terminals and ground suppress radionoise.

b for ease in attaching tothe engine pad.

c easily accessible.

d to the exciter field.

e the ac armature and the dc exciter field.

f through fixed terminals to the ac load.

g through and across the generator armature windings.

h in the generator field windings.

 

IV Grammar: Preposition. Fill in gaps with the correct prepositions.

1 A brush-typeac generatorconsists _ an ac generator and a smallerdc exciter

generator as one unit.

2 The output __thegenerator supplies ac ___ the load.

3 The only purpose ___the dc exciter generator is ___ supply the direct current

required __ maintain the ac generator field.

4 The exciter field creates an area __intense magnetic flux __ its poles.

5 When theexciter armature rotates __ the exciter-field flux,voltage is induced

__the exciter armature windings.

6 The output __ the exciter commutator flows___ brushes and slip rings __ the

generator field.

7 Being dc, already converted __ the exciter commutator,the current always flows

__ one direction ___ thegenerator field.

8 Thus, a fixed-polarity magneticfield is maintained__ the generator field

windings.

9 When the field winding rotates, its magnetic flux passes__and __ the generator

armature windings.

10 The ac__ the ac generator armature windings flows___ fixed terminals __ the

ac load.

11 The stationary member __the generator consists __the ac armature and the dc

exciter field.

12____ ac and exciter terminal boards are easily accessible.

13 All brushrigging is __ the generator and has a brush cover.

14 Theslotted-hole mounting provides ___ease __ attaching __the engine pad. 15The capacitors connected __ theexciter armature terminals and ground suppress

radionoise.