Fluid Mechanics And Machinery Set 4

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This set of Fluid Mechanics and Machinery Multiple Choice Questions & Answers (MCQs) focuses on Fluid Mechanics And Machinery Set 4

Q1 | Which among the following is a standard scale for a similitude?
  • 1:250
  • 1:50
  • 1:25
  • 1:100
Q2 | In similitude, Fapplication=Fmodel*3.44
  • true
  • false
Q3 | spread is called 
  • surface tension
  • diffusivity
  • viscosity
  • kinetics
Q4 | Which among the following is the standard symbol for Archimedes number?
  • a
  • ar
  • a
Q5 | symbol for Atwood number?
  • ar
  • ar
  • a
Q6 | Which among the following is the standard symbol for Blake number?
  • bi
  • ba
  • bl
  • b
Q7 | Which among the following is the standard symbol for Darcy friction factor?
  • f
  • fd
  • c
  • cd
Q8 | Fanning friction factor is  
  • 0.25 times darcy friction factor
  • same as darcy friction factor
  • 2 times darcy friction factor
  • independent
Q9 | symbol for Froude number?
  • f
  • fo
  • fr
  • f
Q10 | Which among the following is the formula for Knudsen number?
  • λ⁄l
  • λ⁄2l
  • λ⁄3l
  • λ⁄4l
Q11 | utilization of 
  • accelerating mass
  • volume
  • work
  • velocity
Q12 | fluid mechanics deals with heat transfer. It is
  • backward direction
  • forward direction
  • perpendicular direction
  • parallel movement
Q13 | The force analysis on a curved vane is understood using 
  • velocity triangles
  • angle of the plate
  • vane angles
  • plate dimensions
Q14 | Jet propulsion works on the principle of 
  • newton’s first law
  • newton’s second law
  • newton’s third law
  • thermodynamic properties
Q15 | How is absolute velocity at inlet denoted?
  • v
  • v1
  • c
  • v
Q16 | The relative velocity is obtained by the equation 
  • u – v1
  • v1
  • u*v1
  • u/v1
Q17 | If the friction is neglected, then 
  • vr1 > vr2
  • vr1 < vr2
  • vr1 = vr2
  • vr1 is a zero
Q18 | If the pressure remains a constant, then
  • vr1 > vr2
  • vr1 < vr2
  • vr1 = vr2
  • vr1 is a zero
Q19 | from the sea can be taken by the pump.
  • true
  • false
Q20 | Jet propulsion of ship is less efficient than screw propeller due to 
  • pressure
  • temperature
  • frictional losses
  • wear and tear
Q21 | A jet strikes a curved plate at its  
  • sides
  • surface
  • centre
  • does not strike
Q22 | of jet engine?
  • turbojet
  • ramjet
  • scramjet
  • propulsive jet
Q23 | decelerates the flow, what increases?
  • pressure
  • temperature
  • volume
  • flow rate
Q24 | while passing
  • pressure energy
  • kinetic energy
  • momentum
  • potential energy
Q25 | The consequence of Newtons second law is 
  • conservation of angular momentum
  • conservation of mass
  • conservation of potential energy
  • conservation of kinetic energy