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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER -III• EXAMINATION SUMMER 2017
Subject Code: 330201 Date: 29 -04 2017
Subject Name: Thermodynamics Hydraulics
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1

Define the thermodynamics system Explain various systems with neat sketch.
07



07

State first law of thermodynamics and explain it with joule`s experiment.




Q.2

List define various thermodynamic properties with their units.
07




07

Explain Kelvin-Plank statement Clausius statement with figure.




OR

Write short note on" Heat Engine"
07


Q.3

Define specific heat at constant pressure at constant volume and derive its relation Cp-Cv=R.
07


Cp-Cv R
07

Explain Boyle`s law and Charle`s law.




OR
Q.3

Derive the equation of carnot cycle with P-V T-S diagram.
07


P-V T-S
07

State limitations of Air standard cycle.




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Q.4

Difference between Otto cycle Diesel cycle. Also draw their P-V diagram.
07


P-V
07

State prove Bernoulli`s equation. Also mention its limitations.




OR
Q.4

Explain with neat sketch Reynold`s experiment and define Reynold`s number.
07



07

List different type of fluid flow and derive continuity equation for steady one dimensional flow.




Q.5

Write short note on water hammer. Also mention its adverse effect.
07



07

Write specification of pump and use of pump in automobile industries.




OR
Q.5

Give difference between reciprocating pump centrifugal pump.
07



07

A centrifugal pump delivers the water at the rate of 60litre per second to the height of 45m. If the efficiency of the pump is then calculate the required power of the pump to drive.