UNIT 2 : SWITCHES , CONNECTORS AND RELAYS


 UNIT 2 

SWITCHES , CONNECTORS AND RELAYS 


SHORT ANSWER QUESTIONS 


1) Classify switches according to poles and throws ?

2) Sketch the I.S.I symbols of various switches ?

3) State the need of fuse in electronic equipment ?

4) Explain the necessity of connectors in electronic circuits ?

5) Mention the use of MCB ?

6) Define a relay ? List the specifications and applications of relays ?


ESSAY TYPE QUESTIONS 


1) Explain the working of general purpose electromagnetic relay ?

2) State the need of fuse in electronic equipment ? Mention different types of fuses ?

3) i)  Explain the necessity of connectors in electronic circuits ?
    ii) Types of connectors ?
    iii) Short notes on MCB ? draw symbol for MCB ?

4) i) Classify different relays based on principle of operation, polarization and application?
    ii) List the specifications and applications of relays.?

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