WIRES JOINTS SOLDERING UG CABLES - Practice Mode

1) What is the purpose of 'serving' layer in underground cable?

Protect the cable from moisture Protect the cable from mechanical injury Protect metallic sheath against corrosion Protect armouring from atmospheric condition

Correct Answer: Protect armouring from atmospheric condition

2) Which cable laying method is used in generating station?

In ducts Racks in air Along buildings Direct in ground

Correct Answer: Racks in air

3) How many electrons are there in the valence shell of a copper atom?

1 2 8 18

Correct Answer: 1

Explanation:

18 electrons are there in the third shell of copper atom.

4) What is the effect of electric current on neon lamp?

Heating effect Magnetic effect Chemical effect Gas ionization effect

Correct Answer: Gas ionization effect

5) What is the unit of insulation resistance?

Ohm Kilo ohm Milli ohm Mega ohm

Correct Answer: Mega ohm

Previous Question Set Back to Question Sets Next Question Set

Try Another Topic

Try Another Quiz