Earthing and Protection Quiz

What is the proper connection between electrical installation systems via conductor to the buried plate in the earth known as?

• Earth

• Earth Electrode

• Earthing Lead

• Earth Continuity Conductor

What is the conductor wire or conductive strip connected between Earth electrode and Electrical installation system called?

• Earth

• Earth Electrode

• Earthing Lead

• Earth Continuity Conductor

What is the total resistance between earth electrode and earth in Ω (Ohms) called?

• Earth Electrode Resistance

• Earth Continuity Conductor

• Earthing Lead

• Earth

What is the primary purpose of earthing?

• To avoid electrocution

• To minimize fire risk

• To ensure voltage stability

• All of the above

According to the IEE regulations, which of the following should be efficiently and permanently earthed?

• Earth pin of 3-pin lighting plug

• Metal casing of electric supply line

• Frame of every generator

• All of the above

What is the maximum size of copper earthing conductors according to IEE regulations?

• 50mm

• 70mm

• 100mm

• 25mm

What should the resistance of the earth continuity conductor not exceed?

• 1Ω

• 2Ω

• 0.5Ω

• 1.5Ω

What is the point where earth continuity conductor and earth electrode meet known as?

• Connecting point

• Earthing joint

• Earth plate

• Earth lead

What is the resistance of the earth wire should be less than?

• 1Ω

• 2Ω

• 0.5Ω

• 1.5Ω