A. p
B. 2 p
C. 0.5 p
D. 0.25 p
Related Mcqs:
- The pressure outside a bubble/droplet of liquid is ________________ the internal pressure?
A. Greater than
B. Less than
C. Equal to
D. Unpredictable; depends on the bubble size - A fluid is termed as the Newtonian fluid, when the shear stress is _________________ the velocity gradient ?
A. Independent of
B. Inversely proportional to
C. Directly proportional to
D. None of these - In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?
A. 20
B. 60
C. 120
D. ∞ - Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?
A. 9,100
B. 13,000
C. 7,000
D. 2,550 - Spherical shape of mercury droplets is due to its____________________?
A. High viscosity
B. Low surface tension
C. High density
D. High surface tension - Alloy powder manufactured by the following process have spherical shapes ?
A. Electrochemical deposition
B. Gaseous reduction
C. Atomisation
D. Mechanical attrition - The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where, A = cross-sectional area of the pipe & D = Diameter of the pipe) ?
A. A
B. D
C. 1/A
D. 1/A2 - Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ?
A. Output & fineness
B. Velocity
C. Both A. & B.
D. None of these - The delivery pressure of boiler feed water pump compared to the boiler steam pressure is___________________?
A. Same
B. Slightly less
C. Slightly more
D. Much more - Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?
A. Decreases
B. Increases
C. Remain same
D. May increase or decrease
