FORMAT OF I A TEST QUESTION PAPER (CIE)
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Test/Date
and Time |
Semester/year |
Course/Course Code |
Max Marks |
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Ex:
I test/6 th weak of sem 10-11 Am |
I/II
SEM |
HYDRAULICS & PNEUMATICS |
20 |
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Year: |
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Name
of Course coordinator : Units: CO’s: |
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Question no |
Question |
MARKS |
CL |
CO |
PO |
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1 |
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2 |
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3 |
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4 |
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Note:
Internal choice may be given in each CO at the same cognitive level (CL).
MODEL QUESTION PAPER
4-
Semester Diploma Examination
HYDRAULICS AND PNEUMATICS
Time: 3 Hours] [Max
Marks:
100
Note: Answer any SIX from Part A
and any SEVEN from Part B
Part A 6x5=30 marks
1.
List the different properties of the fluid.
2. Define the following
i)
Laminar
flow ii) Turbulent flow,
iii)Steady flow iv)
Uniform flow
3.Identify
major energy losses and minor energy losses.
4.State the applications of Hydraulics
system.
5. Explain manometer
and classify. 6.Classify of control valves.
7. Explain the general layout
of pneumatic system.
8. The water
is flowing through a pipe having diameters 200 mm and 100 mm at sections 1 and
2 respectively. The rate of flow through pipe is 35 litres/sec. The section 1
is 6 m
above datum and
section 2 is 4 m above datum. If the pressure at section 1 is 39.24 X 104
N/m2 ,find the intensity of pressure at section 2.
9. APelton
wheel develops 2000KW under a head of 100meters, and with an overall efficiency
of 85%. Find the diameter of the nozzle, if the coefficient of velocity for the nozzle is 0.98.
Part-B
10. a)Explain with neat sketch
the pitot tube. 04
b)An oil of specific gravity 0.8 is flowing through a venturi meter
having inlet 06diameter 200mm and throat diameter 100mm.The oil-mercury
differential manometer shows a reading of 250 mm. Calculate the discharge of
oil through the horizontal venturi meter. Take Cd = 0.98.
11.a)Indicate the factors for selection of Hydraulic turbine. 04
b)A Pelton
wheel develops 2000KW under a head of 100meters, and with an overall efficiency
of 85%. Find the diameter of the nozzle, if the coefficient of velocity for the
nozzle is 0.98.
12. a)Write short on air motors.
b)Explain with
neat sketch, the double-acting cylinder. 13.a)Sketch and explain the gear pump.
b)Sketch and
explain the Spring loaded Accumulator. 14.a)Explain hydraulic gradient and
total energy lines.
b)Find the loss
of the head, due to friction, in a pipe of 500 mm diameter and 1.5 kilometers long.
The velocity of water in the pipe is 1m/s.
Take coefficient of friction as 0.005. 15.a)Classify
of control valves. 4
b)Sketch and
explain the 5/2 DC valve. 6
16.a) Explain the terms with units. 4
i) Dynamic viscosity ii)kinematic viscosity. b)Illustrate the relationship between different pressure with the diagram. 6 17.a)Explain the continuity equation and Bernoulli’s equation. 5
b)Explain with neat sketch the working of a multistage
pump for the high head. 5 18.a)Explain slip, negative slip and
Percentage Slip of Reciprocating pump. 5
b)Explain briefly FRL unit.
19.Distinguish
between : 10.
i) Steady flow
and unsteady flow ii)
Uniform and non uniform flow
iii)
Compressible and incompressible flow iv)
Rotational and irrotational flow
