Most Economic Rectangular Section MCQ

Test your knowledge with important Most Economic Rectangular Section MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Most Economic Rectangular Section MCQs at Bissoy

• The hydraulic radius of an economical rectangular section is 4m, calculate the discharge through the channel if the bed slope of the channel is 1 in 1000 and manning’s co efficient is 0.015.
  ক

  680m3⁄s

  খ

  690m3⁄s

  গ

  700m3⁄s

  ঘ

  710 m3⁄s
• The ratio between normal discharge and maximum discharge through a rectangular channel is 32:6, calculate the depth of the channel if the width of the channel is 4m and bed slope, chezy’s constant remains same.
  ক

  1m

  খ

  2m

  গ

  3m

  ঘ

  4m
• The ratio between maximum discharge and top width of a rectangular channel is 91:50, calculate the depth of the channel if the bed slope is 1 in 3000 and C = 50.
  ক

  2m

  খ

  3m

  গ

  4m

  ঘ

  5m
• Calculate the section factor for the most economical rectangular section having depth of 4m.
  ক

  32

  খ

  64

  গ

  128

  ঘ

  256
• The base width of a most economical rectangular channel is 8m, calculate the hydraulic radius of the channel,
  ক

  5m

  খ

  4m

  গ

  3m

  ঘ

  2m
• The maximum discharge through a rectangular channel is 7.15m3⁄s, determine the depth of the channel where S0 = 1/2000 and C=40.
  ক

  4m

  খ

  3m

  গ

  2m

  ঘ

  1m
• Calculate the maximum discharge through a rectangular channel having width of 5m, bed slope of 1 in 500 and manning’s co efficient is 0.020.
  ক

  33.43m3⁄s

  খ

  32.43m3⁄s

  গ

  31.43m3⁄s

  ঘ

  30.43m3⁄s
• Calculate the maximum discharge through a rectangular channel having depth 3m, bed slope of 1 in 1000.
  ক

  33.85m3/s

  খ

  34.85m3/s

  গ

  35.85m3/s

  ঘ

  36.85m3/s
• Calculate the hydraulic radius for the most economical rectangular section having depth y and width B.
  ক

  y/2

  খ

  y

  গ

  2y

  ঘ

  3y
• The depth and widths of a rectangular channel section are y and B respectively, determine the economical perimeter of the section.
  ক

  y

  খ

  2y

  গ

  3y

  ঘ

  4y
• A rectangular channel section has depth y and width B, calculate the most economical area of the channel.
  ক

  2y2

  খ

  y2

  গ

  By

  ঘ

  B2
• For a channel to be economic which of the following parameters should be minimum.
  ক

  Wetted perimeter

  খ

  Wetted area

  গ

  Section factor

  ঘ

  Hydraulic depth