Earthing Quiz

Why is earthing important for metal parts that do not normally carry current?

• To enhance their durability

• To prevent dangers from earth leakage current and earth faults

• To improve their appearance

• To increase their weight

Which of the following is NOT a type of earthing mentioned?

• General earthing

• Neutral earthing

• Protective earthing

• Industrial earthing

Neutral earthing is important for controlling what?

• Temperature fluctuations

• Fault current to satisfactory values

• Electrical noise

• Power consumption

What type of grounding involves using impedance?

• Impedance Grounded

• Capacitive Grounded

• Inductive Grounded

• Magnetic Grounded

Which method of neutral grounding uses resistance?

• Resistance Grounded

• Capacitive Grounded

• Inductive Grounded

• Magnetic Grounded

Which of the following is NOT a method of neutral grounding mentioned in the document?

• Capacitive Grounded

• Directly or Solidly Grounded

• Impedance Grounded

• Reactance Grounded

What should transformer neutrals be connected directly to?

• Earth electrode

• Station grounding grid

• Main ground mat

• Peripheral fencing

Which of the following is not mentioned as needing to be earthed in a substation?

• Peripheral fencing

• Equipment framework

• Lightning arrestors

• Overhead lightning screen

What is the role of the station grounding mat in a substation?

• To interconnect neutral points

• To support peripheral fencing

• To insulate equipment

• To enhance lightning protection

What is the main purpose of earthing in a substation?

• To ensure electrical safety

• To increase power output

• To reduce maintenance costs

• To enhance visual appeal