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MCQs

Total Questions : 3218 | Page 316 of 322 pages
Question 3151. Each term in Bernoulli‟s equation represents the _____________ of the fluid?
  1.    Energy per unit mass
  2.    Energy per unit weight
  3.    Force per unit mass
  4.    None of these
 Discuss Question
Answer: Option B. -> Energy per unit weight
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3152. One dimensional fluid flow implies the ________________________?
  1.    Flow in straight lines only
  2.    Uniform flow
  3.    Steady uniform flow
  4.    Flow in which transverse components are zero
 Discuss Question
Answer: Option D. -> Flow in which transverse components are zero
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3153. For laminar flow through a closed conduit____________________?
  1.    Vmax = 2Vav
  2.    Vmax = Vav
  3.    Vmax = 1.5Vav
  4.    Vmax = 0.5Vav
 Discuss Question
Answer: Option A. -> Vmax = 2Vav
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3154. An equipotential line is _____________ to the velocity vector at every point?
  1.    Normal
  2.    Parallel
  3.    Tangential
  4.    None of these
 Discuss Question
Answer: Option A. -> Normal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3155. The nominal size of a hose pipe is specified by its _________________?
  1.    I.D.
  2.    O.D.
  3.    Thickness
  4.    None of these
 Discuss Question
Answer: Option A. -> I.D.
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3156. A Newtonian liquid (ρ = density, μ = viscosity) is flowing with velocity „v‟ in a tube of diameter ‘D’. Let Δp be the pressure drop across the length ‘L’. For a laminar flow, Δp is proportional to_________________?
  1.    Lρv2/D
  2.    LμV/D2
  3.    Dρv2/L
  4.    μV/L
 Discuss Question
Answer: Option A. -> Lρv2/D
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3157. In frictional fluid flow, the quantity, (P/ρ) + (V2/2gc) + gz/gc) is___________________?
  1.    Constant along a streamline
  2.    Not constant along a streamline
  3.    Increased in the direction of flow
  4.    None of these
 Discuss Question
Answer: Option B. -> Not constant along a streamline
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3158. The fluid jet discharging from a 2″ diameter orifice has a diameter of 1.75″ at its venacontracta. The co-efficient of contraction is___________________?
  1.    1.3
  2.    0.766
  3.    0.87
  4.    None of these
 Discuss Question
Answer: Option B. -> 0.766
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3159. Specific speed for a centrifugal pump is___________________?
  1.    N √Q/H3/4
  2.    N √Q/H2/3
  3.    N3D5/H1/3
  4.    N √Q/H
 Discuss Question
Answer: Option A. -> N √Q/H3/4
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 3160. For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to____________________?
  1.    R
  2.    R²
  3.    R⁴
  4.    R⁰.⁵
 Discuss Question
Answer: Option C. -> R⁴
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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