Fm 4-2013
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This document contains an exam for a Fluid Mechanics course, with four multi-part questions worth 5 marks each. The questions cover topics like: 1) Using a differential manometer to find absolute pressure at a point; 2) Calculating the magnitude and direction of force on a roller gate from water pressure; 3) Stating the basic principles of fluid flow and deriving the continuity equation for 3D flow; 4) Using pipe diameter, pressure, discharge, and elevation changes to determine head loss and flow direction.
![BANDARI SRINIVAS COLLEGE OF ENGINEERING AND TECHNOLOGY
Gollapally(V),Chevella(M),Ranga Reddy Dist-501503
II.B.Tech I Mid Term Subjective Type Examinations Aug- 2013
FLUID MECHANICS
(CIVIL ENGINEERING)
Max time: 60 Mins DATE: 07/09/2011 F.N Max Marks: 10
Each Question Carries Equal Marks
Answer any TWO of the following 2 X 5 = 10
1. A differential manometer is connected at the two points A and B as shown in
figure. At B air pressure is 7.5 N/cm2
(abs). Find the absolute pressure at A.
[5]
2. A roller gate is shown in figure 2, in the cylindrical form of 6 m diameter. It is
placed on the dam. Find the magnitude and direction of the resultant force due to
water acting on the gate when the water is just going to spill. The length of the gate is
given 10m.
[5]
Code:53005 R09](https://image.slidesharecdn.com/fm-4-2013-150520155003-lva1-app6892/85/Fm-4-2013-1-320.jpg)
![3. State the basic principles of fluid flow and derive the continuity equation for 3-
D flow. [5]
4. A pipe line carrying oil of specific gravity 0.87 changes in diameter from 200
mm diameter at position 1 to 500 mm diameter at position 2 which is 4 meters at a
higher level. If the pressures at 1 and 2 are 100 kN/m2 and 60 kN/m2 respectively and the
discharge is 0.2 m3/s, determine:
(i) Loss of head, and
(ii) Direction of flow
[5]](https://image.slidesharecdn.com/fm-4-2013-150520155003-lva1-app6892/85/Fm-4-2013-2-320.jpg)
Fm 4-2013
- 1. BANDARI SRINIVAS COLLEGE OF ENGINEERING AND TECHNOLOGY Gollapally(V),Chevella(M),Ranga Reddy Dist-501503 II.B.Tech I Mid Term Subjective Type Examinations Aug- 2013 FLUID MECHANICS (CIVIL ENGINEERING) Max time: 60 Mins DATE: 07/09/2011 F.N Max Marks: 10 Each Question Carries Equal Marks Answer any TWO of the following 2 X 5 = 10 1. A differential manometer is connected at the two points A and B as shown in figure. At B air pressure is 7.5 N/cm2 (abs). Find the absolute pressure at A. [5] 2. A roller gate is shown in figure 2, in the cylindrical form of 6 m diameter. It is placed on the dam. Find the magnitude and direction of the resultant force due to water acting on the gate when the water is just going to spill. The length of the gate is given 10m. [5] Code:53005 R09
- 2. 3. State the basic principles of fluid flow and derive the continuity equation for 3- D flow. [5] 4. A pipe line carrying oil of specific gravity 0.87 changes in diameter from 200 mm diameter at position 1 to 500 mm diameter at position 2 which is 4 meters at a higher level. If the pressures at 1 and 2 are 100 kN/m2 and 60 kN/m2 respectively and the discharge is 0.2 m3/s, determine: (i) Loss of head, and (ii) Direction of flow [5]