Related Questions

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
The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for __________ fluid.
A Newtonion
B Dilatant
C Pseudo-plastic
D Non-Newtonion
The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid.
A Dilatant
B Pseudo-plastic
C Bingham plastic
D Newtonion
The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.
A Newtonion
B Pseudoplastic
C Dilatent
D Bingham plastic
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?
A Rotational
B Unsteady
C Turbulent
D Non-uniform
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
গরম বাতাসে পরিপূর্ণ M ভরের একটি বেলুন (থ্রডি সহ) পৃথিবীর দিকে খুব ত্বরণ a তে নেমে আসছে। ঝুড়ি থেকে কি পরিমান m ভর ফেলে দিলে বেলুনটি উপরের দিকে একই খুব ত্বরন a- তে উঠে যাবে ? সকল ক্ষেত্রে বেলুনটির আয়তন একই ছিল বলে ধরে নেওয়া হলো। (g = অভিকর্ষীয় ত্বরন)(A hot air balloon with a bucket is descending towards the earth with a constant acceleration a. The combined mass of the balloon and bucket is M. What mass m from the bucket should be released so that the balloon starts ascending up with the same acceleration a? Consider the volume of the balloon remains constant at all the time. (g=acceleration due to gravity))
A m=2ag+aM
B m=g+a2M
C m=2ag M
D m=M2a(g+a)
E m=ag+M
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 turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
A Low
B Very low
C High
D Very high
Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition.
A $$\frac{\partial }{{\partial {\text{s}}}} = 0$$
B $$\frac{\partial }{{\partial {\text{t}}}} = 0$$
C $$\frac{\partial }{{\partial {\text{s}}}} = {\text{constant}}$$
D $$\frac{\partial }{{\partial {\text{t}}}} = {\text{constant}}$$

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