The bulk modulus of elasticity of a liquid__________________?

Related Mcqs:

1. For an incompressible fluid, the bulk modulus of elasticity is____________________?

   A. 5 kg/m3
   B. ∞ N/m2
   C. 1 N
   D. 0 N/m

2. The unit of bulk modulus of elasticity for a liquid in S.I. unit is____________________?

   A. N
   B. N/m
   C. N/m2
   D. N/m3

3. Hydraulic diameter for non-circular ducts is equal to ___________ times the area of flow divided by the perimeter?

   A. Two
   B. Three
   C. Four
   D. Eight

4. Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss ?

   A. Flow nozzle
   B. Venturimeter
   C. Rotameter
   D. Orificemeter

5. Where does the maximum stress occur in case of laminar flow of incompressible fluid in a closed conduit of diameter ‘d’ ?

   A. At the centre
   B. At d/4 from the wall
   C. At the wall
   D. At d/8 from the wall

6. Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is________________?

   A. 90
   B. 60
   C. 45
   D. 30

7. The continuity equation__________________?

   A. Relates mass flow rate along a stream tube
   B. Relates work and energy
   C. Stipulates that Newton’s second law of motion must be satisfied at every point in the fluid
   D. None of these

8. In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of___________________?

   A. Relative roughness
   B. Absolute roughness
   C. Friction co-efficient for flows at equal Reynold number
   D. All A., B. & C.

9. Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena-contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity)?

   A. Cd = Cc/Cv
   B. Cd = Cc.Cv
   C. Cd = Cv/ Cc
   D. None of these

10. Co-efficient of velocity is ___________________ the coefficient of discharge?

    A. Less than
    B. More than
    C. Equal to
    D. Not related to