A. Tapering pipe at constant flow rate
B. Tapering pipe at either decreasing or increasing flow rate
C. Long pipeline of constant diameter
D. None of these
Related Mcqs:
- Melting point & boiling points of liquid oxygen are respectively – 218.8°C & – 183°C, while the same for liquid nitrogen is – 210°C & – 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 ?
A. °C
B. °F
C. °K
D. °R - Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at________________?
A. High vacuum
B. Zero pressure
C. 0°K
D. Earth’s centre - 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 - Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the___________________?
A. Length of the pipe
B. Diameter of the pipe
C. Density of the fluid
D. Velocity of the fluid - An approximately _____________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section ?
A. Adiabatic
B. Isothermal
C. Isentropic
D. Isochoric - In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?
A. More
B. Less
C. Equal
D. Much more - Which of the following is a commonly used manometric liquid for low pressure range ?
A. Ethyl alcohol
B. Carbon tetrachloride
C. Glycerol
D. Ethylene glycol - The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?
A. Parabolic
B. Hyperbolic
C. Straight line
D. None of these - A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to____________________?
A. √(Particle diameter)
B. Particle diameter
C. (Particle diameter)2
D. (Particle diameter)3 - Uniform ramming of sand in green sand moulding process leads to____________________?
A. Reduced chance of gas porosity
B. Greater dimensional stability of the casting
C. Uniform flow of molten metal into the mould cavity
D. Less sand expansion type of casting defect
