Transmission and Distribution Quiz

By which of the following method electric power may be transmitted from one location to another location?

• UnderGround System

• Overhead system

• Both 1 and 2

• None of the above

Which of the following transmission line have more initial cost?

• Overhead Transmission

• Underground transmission

• Both have almost the same initial cost

• None of the above

Transmission lines are classified as short, medium and long depending on the

• Length of line

• Charging current or on load current

• Capacitance of line

• Both (a) and (b) above

In power transmission line, grounding is generally done at

• Middle of the line

• The receiving end

• The supply end

• None of these

In stranded conductor of 6 layers, what will be the total number of individual wire?

• 75

• 85

• 84

• 74

A standard conductor have three layers of wire. What will be the diameter of stranded conductor if diameter of each strand is 5 mm?

• 38 mm

• 15 mm

• 20 mm

• 35 mm

What is the disadvantage of using Stranded Hard Drawn Copper for overhead transmission lines?

• Low tensile strength

• Due to electrolytic troubles

• Corrosion

• High cost

Which of the following conductors are most suitable for short lines supplying rural areas and operating at voltage of about 11 Kv?

• Hard Drawn Copper Conductor

• ACSR Conductor

• Galvanized steel

• Phosphor Bronze

Which of the following conductive material will be preferred when harmful gases such as ammonia are present in atmosphere?

• Cadmium copper

• Phosphor bronze

• Galvanized steel

• Aluminum

What is the amount of Corona losses in ACSR conductors in comparison to copper conductors?

• Low

• High

• Same

• No Corona loss