Rankine’s Theory due to Slenderness Ratio MCQ

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• _________ is a property of the free surface of a liquid.
  ক

  Permeability

  খ

  Surface tension

  গ

  Capillarity

  ঘ

  Specific gravity
• The ratio of the yield of water from a rapid sand filter is __________
  ক

  10

  খ

  5

  গ

  15

  ঘ

  30
• Which of the following processes is known as zeolite?
  ক

  Demineralization process

  খ

  Deionized water

  গ

  Lime soda process

  ঘ

  Base exchange process
• The rate of filtration for rapid sand filter is ___________
  ক

  3000 to 4500 lit/hr/m2

  খ

  4500 to 6500 lit/hr/m2

  গ

  3000 to 6000 lit/hr/m2

  ঘ

  4500 to 7000 lit/hr/m2
• What is a detention time for mechanically cleaned tanks?
  ক

  2 to 3 hours

  খ

  2.5 to 4 hours

  গ

  1.5 to 3 hours

  ঘ

  4 to 6 hours
• The time for which water is written in a settling tank is known as ________
  ক

  Virtual time

  খ

  Actual time

  গ

  Detention time

  ঘ

  Active time
• The series of connected lines is known as ____________
  ক

  Reinforcing

  খ

  Traversing

  গ

  Guniting

  ঘ

  Bracing
• ________ stops the oscillations of the graduated ring.
  ক

  Brake pin

  খ

  Eye vane

  গ

  Object vane

  ঘ

  Graduated ring
• ___________ is provided to avoid undue wear and tear of pivot points.
  ক

  Magnetic needle

  খ

  Lifting pin and lever

  গ

  Object vane

  ঘ

  Break pin
• _________ changes with place and time.
  ক

  Bearing

  খ

  Magnetic bearing

  গ

  True bearing

  ঘ

  Arbitrary bearing
• Which of the following is also known as geographical meridian?
  ক

  True meridian

  খ

  Arbitrary meridian

  গ

  Magnetic meridian

  ঘ

  Post meridian
• _________ is a fix direction on the surface.
  ক

  Bearing

  খ

  Meridian

  গ

  Graduated ring

  ঘ

  Lift lever
• A retaining wall is related to _______
  ক

  Plane stress

  খ

  Plane strain

  গ

  Normal stress

  ঘ

  Normal strain
• A HYSD steel bar is 400 mm long. The lengths of the parts AB and BC of the bar is 200 mm each. It is loaded as P1 = 2000 kg and P2 = 1000 kg. Take diameter of AB as 2 cm and BC as 1 cm. The ratio of stresses in part AB to stresses in part BC is __________
  ক

  0.2

  খ

  0.75

  গ

  0.5

  ঘ

  1.5
• Calculate the elongation of the cable due to load, if a steel cable of 2 cm diameter is used to lift a load of 500 π kg. Given that and the length of cable is 10 m and E = 2×106 kg/cm2.
  ক

  0.5 cm

  খ

  0.3 cm

  গ

  0.25 cm

  ঘ

  0.4 cm