Related Questions

The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as
A Conduction
B Free convection
C Forced convection
D Radiation
0.50 kg ভরের একটি কণা X অক্ষ বরাবর x(t)= -13.00+2.00t+4.00t2-3.00t3 সমীকরণ অনুযায়ী চলছে, যেখানে x এর একক মিটার এবং এর একক সেকেন্ড। t=2.0. s - 4 কণার ওপর লব্ধি বল কত? (A 0.50 kg particle moves along the X axis according to x(t)= -13.00+2.00t+4.00t2-3.00t3where x is in meters and t in seconds. What is the net force acting on the particle at t = 2 s?)
A -28 N
B -14 N
C 8 N
D 36 N
Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called
A Radiation
B Natural convection
C Forced convection
D Conduction
Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid.
A 2 to 3
B 0.01 to 0.10
C 200 to 300
D 100 to 1000
In the Newton's law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is __________ the fluid viscosity.
A Directly proportional to
B Inversely proportional to
C Inversely proportional to the square root of
D Independent of
Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity?
A Sphere
B Cube
C Cylinder (L/D = 1)
D Raschig rings
[Answer the question 42 best on what is stated or implied in the statement or passage: Leonardo da vinci is not only one of the most famous artists in history, but he was also famous artists in history, but he was also a botanist, a writer, and an inventor. many of today's modern machines can be traced back to some of his original designs. The parachute, the military tank, the bicycle, and even the airplane were foretold. Over 500 years ago, his ideas transcended his time. The author of this passage is praising da Vinci primarily for his-
A artistic talent
B intelligence
C foresight
D fame
The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as
A Conduction
B Free convection
C Forced convection
D Radiation
In the case of steady flow of a fluid, the acceleration of any fluid particle is
A Constant
B Variable
C Zero
D Zero under limiting conditions
In steady flow of a fluid, the total accele ration of any fluid particle
A can be zero
B is never zero
C is always zero
D is independent of coordinates

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