Related Questions

The tangential velocity of the water element having a free vortex is
A Directly proportional to its distance from the centre
B Inversely proportional to its distance from the centre
C Directly proportional to its (distance)2 from the centre
D Inversely proportional to its (distance)2 from the centre
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
Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
At the end of given passage , some inferences drawn or supposed to be drawn from the paragraph are given. On the basis of the study of the paragraph, point out whether the inferences is- (a) Definitely true (b) Definitely false (c) probably true (d) probably false (e) can't say. Political freedom is incomplete and had little meaning without economic independence. Until the battle for economic independence is won, the emerging nation will be subjected to external pressure, which must be resisted. Bangladesh though herself in the throes of development has assisted the developing nations. Politically free countries must be economically free.
A Definitely true
B Definitely false
C probably true
D probably false
The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by
A Biological oxygen pond
B Aerated lagoons
C Trickling filters
D Gravity separator having oil skimming devices
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
"He was a free-will agent"- What does the word 'free-will' mean?
A reluctant
B enforced
C autonomy
D involuntary
Many companies now have employee assistance programs that enable employees, free of charge, to improve their physical fitness, reduce stress, and learn ways to stop smoking. These programs increase worker productivity, reduce absenteeism and lessen insura
A Physical fitness programs are often the most popular services offered to employees.
B Studies have shown that training in stress, management is not effective for many people.
C Regular exercise reduces people's risk of heart disease and provides them with increased energy
D Employee assistance programs require companies to hire people to supervise the various programs offered.

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