FM Chap-2

                           Fluid Mechanics        

        

       TEST: Chap-2                         TOTAL MARKS:35

Q-1  State the Pascal’s law and prove it.                                        Marks-7

Q-2  Derive the general equation for pressure the variation of  Pressure

         Due to gravity from point to point in a static fluid.             Marks-7

Q-3  Explain fully the differential manometers.                           Marks-7

Q-4  A micro manometer,having a ratio of reservoir to limbs areas As 100,was used to determine the pressure in pipe containing Liquid of specific gravity 0.8 . determine the pressure in the Pipe for manometer reading as shown in Fig1                                                                    Marks-7

Q-5 For the manometer setup as shown in fig. 2. Calculate the .The pressure diff between pipes A and B. Take h₁=35cm, h₂=20cm,h₃=50cm,h₄ =20cm.Neglet pressure of air column in the inclined tube. 

                                         Marks-7                       

   

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EME- CH-3-PROPERTIES OF GASES(IMPORTANT QUE FOR GTU EXAM)

        ELEMENTS OF MECHANICAL ENGINEERING

            

                     IMPORTANT QUE FOR GTU EXAM 

                          CH-3(PROPERTIES OF GASES)

Q.1 Explain combined law pv=RT.

Q.2 Prove that C_p – C_V =R.

Q.3 Explain isothermal process in details.

Q.4 Prove that pv^ϒ=c for adiabatic process.

Q.5 Explain Adiabatic process in details.

Q.6 Prove heat transfer for polytropic process.

                                 EXAMPLES

1.)  5kg of air is heated from 25^·C to 150^·C. Determine 1. Specific heats 2.  I.E. 3.change in enthalpy 4. heat supplied. Assume R=0.287 kj/kg.k and ϒ=1.4 for Air and work done 500KJ.

2.)  A gas whose pressure,volume and temperature are 2.75 bar, 0.09m³ and 185°C respectively has the state changed at constant pressure and until it’s temperature becomes 15°C. Calculate 1.Heat transferred 2.Work done. Take R=0.29 kj/kg.k And C_p =1.005 kj/kg.k.

3.)  3kg of ethane gas is compressed according to law pv^1.3=constant from 1.013 bar,27°C to 8bar pressure. Determine 1. Heat transferred, 2.work done, 3. I.E. Molecular weight of ethane is 30 kg/kg.mol and C_p=1.75kj/kg.k for ethane.assume ethane as a perfect gas.Take R₀=8314.4 j/kg.mol.k .

 4.)  One cubic meter of air at pressure of 1 bar and 60°C is compressed to final pressure 6 bar and volume .25m³.determine 1.mass air 2.index ‘n’ for compression 3.change in internal energy 4.heat transferred during compression.take ϒ=1.4 and R=287 j/kg.k

5.) In air compressor, air enters at 1.013 bar and 27°C having v=5  m³/kg and it is compressed to 12 bar isothermally.determine 1.work done 2.heat transfer and 3.change in internal energy.

Degree Sem 2 result

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MATHS-3 ASSIGNMENT

TIME TABLE

M.O.S. Chapter-1 (B.E. 3rd sem Mechanical, Civil, Automobile, Mining)

MOON ENGINEERING INSTITUTE                                                                 We Serves Your Dreams......
Sub:- GT.& A.G              Marks :30                     Time:1 hour
1.Define: (1) Mechanics (2) Space (3) Inertia (4) Equilibrant force (5) Force    (6) Particle (7) Cohesion-Adhesion (8) Composition of forces (9) Couple (10) Kinetics	05
2.Fill in the blanks: (1) 1 hp = _______ N.mm/sec (2) 1000 MPa = _______ kN/mm2 (3) The characteristics of forces are____. (4) _______law indicates nature of force.	02
3.States basic principles of Mechanics. Explain Parallelgram law of forces with derivation. OR  Explain different system of forces.	07
4.Explain Lami’s principle in brief. OR  Explain resultant force. Find the magnitude of two forces such that if they act at right angle, square of their resultant is 40kN and is 52kN if they act at 60°.	07
5.Find resultant of the force system shown in Fig 1.OR  Explain Law of moments in brief. Write chractaristics of couple.	07
6.What is moment? Find magnitude, direction and position of resultant force of the force system at point A as given in Fig 2. OR  What is Couple? Find equivalent force-couple system at point A as shown in Fig 3.	07

GT & AG Test (B.E. 3rd Sem Civil)

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Sub :- GT.& A.G         Chp- 1 & 2             Marks : 30          Time: 1 hour
1. Explain soil engineering and geotechnical           engineering.	05
2. Scope of soil engineering.	05
3. Limitation of soil engineering.	05
4. Soil as construction material.	05
5. Draw geological cycle and explain weathering and  transportation of soil.	07
6. Explain 1.cohesive soil 2.cohesionless soil           3.peat  4.humus 5.bentonite 6. Black cotton soil	03