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describe its function in a sentence:
Component Function
1 armature a) transfers rotation from the motor;
2 bearing b) create an electromagnetic field;
3 brushes с) converts electromagnetic energy to rotation;
4 commutator d) reverses the current to the armature;
5 drive shaft e) support the drive shaft;
6 field windings f) supply current to the armature;

Step 4

Complete the text. Use the following words: are made up; is
placed; is composed; consists.

A transformer ... of two coils, a primary and a secondary. The coils
are wound on a former which is mounted on a core. The coils ...of
a number of loops of wire. The core ... of thin pieces of soft iron.
U- and T- shaped pieces are used.

Word study

Study these expressions for describing how components are
connected to each other.

A is bolted to B. = A is connected to В with bolts.
A is welded to B. = A is connected to B by welding.
A is fixed to B. = no specific method given.

Step 5

Explain each of these methods of connection
1 screwed; 6 nailed;
2 soldered; 7 brazed;
3 attached; 8 welded;
4 wired; 9 riveted;
5 bonded; 10 glued.

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