Related Questions

In a free vortex motion, the radial component of velocity everywhere is
A Maximum
B Minimum
C Zero
D Nonzero and finite
In a forced vortex, the velocity of flow everywhere within the fluid is
A Maximum
B Minimum
C Zero
D Nonzero finite
In a forced vortex motion, the velocity of flow is
A directly proportional to its radial distance from axis of rotation
B inversely proportional to its radial distance from the axis of rotation
C inversely proportional to the square of its radial distance from the axis of rotation
D directly proportional to the square of its radial distance from the axis of rotation
Identify the sentence in which the word element (s) refers to 'suitable or favourable environment. (1) There is an element of truth in your story. (2) Water is composed of elements of hydrogen and oxygen. (3) I feel out of my elements in political discussions. (4) Water is a natural element for fish
A (4)
B (3)
C (1) and (2)
D (1)
In a free vortex, the
A Velocity changes linearly with radial distance
B Flow is necessarily rotational
C Radial component of velocity is same everywhere
D Stream lines are not circular
Which element may be used within content to represent material that is tangential?
A aside
B cite
C article
D class
শূন্য মাধ্যমে আলোর বেগ C পানি ও হীরকের প্রতিসরাঙ্ক যথাক্রমে 1.33 ও 2.66 হলে পানিতে আলোর (Velocity of light in free space is c. Refractive indices of water and diamond 1.33 and 2.66 respectively. The velocity of light in water is)
A 1.33 c
B 1.33c/2.66
C c / 1.33
D c/2.66
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)
A 0.423 D
B 0.577 D
C 0.223 D
D 0.707 D
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity
A One-half
B One-third
C Two-third
D Three-fourth
There are five persons sitting on a bench. Blue eyed lady sitting in the middle is my mother. At the extreme left, the man with grey hair is my maternal uncle. Lady sitting at the extreme right is having a pimple on her nose and is the wife of person who is sitting between blue eyed lady and grey haired man and has a pointed nose. A lady having marks on her face is the younger sister of the blue eyed lady and sitting on the remaining fifth place. The person having a pointed nose is the son of the blue eyed lady. What is the lady having marks on her face to the man sitting at extreme left ?
A Wife
B Maternal Aunt
C Sister
D Sister-in-law

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