5th unit quiz

Which of the following is a major classification of canals based on the source of water?

• Perennial and Non-perennial canals

• Main and Distributary canals

• Contour and Ridge canals

• Lined and Unlined canals

A canal aligned along the contour of the land is known as a:

• Ridge canal

• Side slope canal

• Contour canal

• Gravity canal

Which of the following is not a factor influencing the alignment of canals?

• Topography

• Soil characteristics

• Type of lining used

• Political boundaries

What is the main purpose of a canal drop?

• To distribute water to fields

• To allow crossing of rivers

• To dissipate energy from a drop in canal bed level

• To store water temporarily

Which of the following is a type of canal drop commonly used for small drops and low discharges?

• Notch drop

• Vertical drop

• stepped drop

• Inclined fall

A canal cross drainage work is needed when:

• The canal needs to turn

• The canal intersects a natural drain or stream

• The canal ends at a reservoir

• The canal enters a field

In which cross drainage work does the canal pass over the natural drain?

• Super passage

• Aqueduct

• Syphon aqueduct

• Level crossing

What distinguishes a syphon aqueduct from a regular aqueduct?

• The canal flows through a pipe

• The canal is higher but drain flows under pressure

• It has multiple levels of flow

• Water flows via pumping

Which type of cross drainage work allows both canal and drain to continue at nearly the same level, interacting directly?

• Level crossing

• Syphon

• Super passage

• Drop structure

What is the key purpose of canal classification into main, branch, distributary, and minor?

• To separate drinking and irrigation water

• For better structural design

• For efficient water distribution

• To manage flood control