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

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
by

1 Answer

Answer :

(A) Velocity changes linearly with radial distance
by

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In a forced vortex, the velocity of flow everywhere within the fluid is (A) Maximum (B) Minimum (C) Zero (D) Nonzero finite

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A boat takes 4hours for traveling downstream from point P to point Q and coming back to point P upstream. If the velocity of the stream is 2km ph and the speed of the boat in still water is 4kmph, what is the distance between P and Q? A.9 km B.7 km C.5 km D.6km

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A boat takes 38 hrs for travelling downstream from point p to point q and coming back to a point r midway between p and q. If the velocity of the stream is 8 km/hr and the speed of the boat in still water is 28 km/hr. What is the distance between p and q? A) 720 B) 640 C) 510 D) 450

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Last Answer : D. The internal rate of return is rarely used by firms today because of the ease at which net present value is calculated.

Which of the following statements is correct regarding the internal rate of return (IRR) method? A. Each project has a unique internal rate of return B. As long as you are not dealing with mutually exclusive projects, capital rationing, or unusual projects having multiple sigD. The internal rate of return is rarely used by firms today because of the ease at which net present value is calculatedn changes in the cash-flow stream, the internal rate of return method can be used with reasonable confidence. C. The internal rate of return does not consider the time value of money.

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In area meter (e.g., Rotameter), with increase in the fluid flow rate, the (A) Pressure drop increases linearly (B) Pressure drop is almost constant (C) Area through which fluid flows does not vary (D) None of these

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In laminar flow through a round tube, the discharge varies (A) Linearly as the viscosity (B) Inversely as the pressure drop (C) Inversely as the viscosity (D) As the square of the radius

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