C B3C032S Pages: 3

Reg. No. Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER B.TECH DEGREE EXAMINATION, JULY 2017

CE203: FLUID MECHANICS -I
Max. Marks: 100 Duration: 3Hours
PARTA
Answer any two full questions.

1. a. A wooden block of 1m side cube of relative density 0.7 floats in water. Determine the
volume of concrete of relative density 2.5 that needs to be placed on it so that the block is
just immersed in water. (8) b. A single column vertical manometer with a reservoir
to is connected to a pipe containing oil of specific gravity 0.9. The area of reservoir is 100
times the area of the manometric tube. The reservoir contains mercury of specific gravity
13.6. The level of mercury in the reservoir is at depth 30cm below the centre of pipe. If the
difference of mercury levels in the reservoir and the right limb is 50cm, calculate the pressure
in the

pipe. (7)

50cm
30cm

2. ௨ A circular plate of 0.3m diameter is immersed in water at an inclination 60° to the free
surface with its top edge at 1m below the water surface. Find the total pressure and the centre

of pressure on the plate. (7)

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