r. c. technical institute, sola · 11. explain hydraulic cylinders. 12. explain the working of...

R. C. TECHNICAL INSTITUTE, SOLA

MECHANICAL DEPARTMENT

SEMESTER – 3

SUBJECT NAME& CODE :FLUID MECHANICS AND HYDRAULIC MACHINES (3331903)

ASSIGNMENT-1

1.Define following terms with their SI units.

1. Density

2. Specific weight

3. Specific gravity

4. Dynamic viscosity

5. Kinematic viscosity

6. Surface tension

7. Capillarity

8. Compressibility

9. Vapour pressure

10. Specific volume

2. Define fluid and explain types of fluid.

3. Define absolute pressure, gauge pressure, vacuum.

4. State Pascal’s law and prove it.

5. Explain the construction , working, advantages and Dis Advantages of pelton wheel with neat

sketch.

6. Explain the following type of flow

(1) Uniform flow and Non Uniform flow

(2) One dimensional flow, two dimensional flow ,three dimensional flow

(3) Laminar flow and turbulent flow

(4) Steady and unsteady flow

7. Define following Terms.

(1) Stream Line (2) Path Line (3) Stream Tube

8. Explain the term “Impact of jet”. Derive the equation of force due to

impact of jet on stationary flat vertical plate

9. A 5cm diameter of jet moving with a velocity of 30m/s, is strikes a

moving flat plate normal to the jet. Plate is moving with a velocity of 8

m/s. Calculate work done per sec and efficiency.

10. Water flow with 2 lit/s from pipe of 200 mm diameter with 400 kpa pressure and pipe is 100

mm at a height from datum than find out Total Energy for ideal fluid.

11. Water flow with 6 m/s velocity with 3200 lit/minute through a pipe than decide the size of

pipe.

12. Classify pressure measuring devices and explain any one.

13. Explain Differential manometer with sketch and suitable formula.

14. A simple manometer is used to measure pressure of flowing water. The right limb of

manometer is opened to atmosphere and left limb is attached to centre of pipe. The center of

pipe is at a level of mercury in right limb. If the difference of mercury height between to

limb is 14 Cm. then calculate pressure.

15. Explain the following form of energy (a) Pressure Energy (b)Potential Energy (3) Kinetic

energy



SEMESTER – 3


Assignment-2

1. Write assumption and limitations of Bernoulli’s equation

2. With neat sketch explain the Reynolds’s Experiments.

3. Explain water hammer effect and arrangement to overcome water hammer

effect.

4. Write the equation for discharge for Orifice meter. How can we measure

velocity of fluid with the help of this equation?

5. Calculate the discharge in lit/sec for water flowing through rectangular notch

of 50 cm. length. The constant head over notch is 30cm. Take Cd=0.70

6. Derive the equation for head of inclined venture meter

7. Derive Bernoulli’s equation from Euler’s equation.

8. Explain following hydraulic co-efficient.

(i)Co-efficient of contraction(ii) Co-efficient of Discharge

(iii) Co-efficient of velocity

9. A horizontal venturimeter is use for measuring discharge of water, whose inlet and

throat diameters are 75 mm and 25 mm respectively. The reading of differential

manometer connected between inlet and throat is 41.2 cm of mercury. If the co-

efficient of venturimeter is 0.97, find the discharge

10. An oil specific viscosity 0.15 N-s/m2 and specific gravity 0.81 flows

through a pipe of 140mm diameter at the flow rate of 0.03 m3/sec.

Determine whether flow is laminar or turbulent.



SEMESTER – 3


Assignment-3

1. Explain Multi stage pump in series and parallel.

2. Give the difference between Centrifugal Pump and Reciprocating Pump

3. Describe Gear Pump with neat sketch

4. Explain the working of reciprocating pump with neat sketch

5. Describe construction of Kaplan turbine.

6. Write method for turbine maintenance.

7. Write the advantages and disadvantages of air motor.

8. Draw any three symbols used for flow control valve in fluid circuit.

9. Explain application of surface and depth filters used in hydraulic system.

10. Name the element use in Pneumatic Circuit

11. Explain Hydraulic Cylinders.

12. Explain the working of Hydraulic lift with neat sketch

13. Draw the following symbols in Pneumatic circuit.

(1) Hydro pump (2) Pressure Regulator

(3) Pressure gauge (4) Accumulator

14. A C.F. pump transmits 14.71kw power against the total head of 15m of

water. Find the discharge of water in liter/minute, if efficiency of the pump

is 72%.

R. C. Technical Institute, Sola

Mechanical Engineering Department

Semester – 3rd

Subject Name: Human Resources Management

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ASSIGNMENT-1

[1] Define Productivity.

[2] What is motivation?

[3] List qualities of Good Supervisor.

[4] State in short the Impact of human element on Industrial harmony.

[5] What are the primary needs of human being? Discuss.

[6] List the Function of Human resources management.

[7] Describe the role of group in organization.

[8] Explain importance of Maslow’s need hierarchy in managing human resource.

[9] Discuss the factors affecting the decision making.

[10] Explain brainstorming.

[11] Write short notes on “Joheri window”.

[12] Give any two desirable characteristics of a group member.

[13] State the two reasons for HRM in industry

[14] State the concept of Douglas McGregor

[15] Write in brief about the need of self-actualization

[16] State the relation between productivity and morale

[17] State the method of improving interpersonal competence

[18] What is Ethics?

[19] Explain interpersonal behaviour.

[20] List the types of groups.



Semester – 3rd


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ASSIGNMENT-2

[1] Define Leadership.

[2] Name the types of trainings.

[3] What is the need of counselling?

[4] What is Positive attitude?

[5] Explain characteristics of stress.

[6] What is difference between Refresher training and promotion training.

[7] Explain the causes of conflicts.

[8] State the need and importance of motivation.

[9] State the need for the change.

[10] State the objectives of trade union

[11] State the barriers to change process.

[12] State the techniques to deal with the people effectively.

[13] List the qualities of good leader.

[14] Name the stress measurement techniques

[15] What is job satisfaction?

[16] What is the difference between induction training and promotion.

[17] What is the role of team in the organization?

[18] State the barriers to change process

[19] What are the causes of stress? How it is harmful to the organization?



Semester – 3rd


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ASSIGNMENT-3

[1] Give any four factors affecting the decision making.

[2] What is concept of stress management?

[3] Explain relaxation techniques of stress management.

[4] State the constructive role of trade unions in change management.

[5] What is group dynamics? State the types of groups.

[6] Discuss the process of Decision making.

[7] Write short note on ‘X’ and ‘Y’ theory.

[8] Describe the impact of human factor on productivity.

[9] How can we motivate the people?

[10] Power influence and compliance. Discuss in short.

[11] Name the five resources in the organization

[12] What is a change?

[13] State the factors affecting decision making process

[14] Explain any one type of leadership style.

[15] Write the importance of training.

[16] Explain the methods of relieving stress

[17] Explain interpersonal competence.

[18] Explain the role of motivator in organization

[19] What are the disadvantages of negative attitude?

R C TECHANICAL INSTITUTE


Manufacturing Engineering-I

Assignment-I

Answer the following Questions:

1. Define the following terms:

a. Strength

b. Ductility

c. Malleability

d. Toughness

e. Hardness

f. Machinability

g. Residual stress

h. Brittleness

i. Elasticity

2. Define the manufacturing process and classify it.

3. What is recrystallization temperature? List the factors on which it depends.

4. Compare the hot rolling and cold rolling process.

5. List the various types of rolling mills and explain any one of them with sketch.

6. Explain cluster rolling with neat sketch.

7. Explain the factors affecting the rolling process.

8. Define the welding process.

9. Write the classification of welding process.

10. Explain pressure and non-pressure welding process.

11. Explain oxy-acetylene gas welding process.

12. List the equipment used in gas welding process.

13. Define casting process.

14. Define pattern and write down its type.

15. List the pattern material and explain any one.

16. What do you mean by pattern allowances? Explain any one.




Assignment-2


1. Describe the upset forging process with sketch

2. Write brief note on press forging.

3. List the defects present in forged part.

4. Write down the difference between drop forging and press forging.

5. Explain the factor effecting the drawing operation.

6. Difference between drawing down and deep drawing operation.

7. Explain wire drawing process with sketch.

8. Gives the type of foundry used in casting.

9. Draw the neat sketch of following 1.skeleton pattern 2. Sweep pattern

10. Why the color code is given on the pattern?

11. Name the various type of moulding sand. State the function of each.

12. Explain MIG welding process

13. Explain TIG welding process

14. Explain spot welding process




Assignment-3


1. Explain spinning process

2. Explain 1. Direct or forward extrusion 2. Backward or indirect extrusion

3. Define 1. Bending 2. Embossing 3. Stretch forming

4. Explain shot peening process

5. Define coining and swaging process

6. Explain following properties of moulding sand

1. Porosity and permeability 2. Collapsibility 3. Adhesiveness 4.cohesivness 5. Refectoriness

7. What do you mean by electric resistance welding process

8. Write short note on adhesive bonding material

9. Write down the welding defects with reasons

10. Explain laser beam welding process with neat sketch

11. Draw welding symbol used in manufacturing process

12. Explain electron beam welding process



Semester – 3rd

Subject Name: Thermodynamics

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ASSIGNMENT-1

[1] Explain thermodynamic system with example.

[2] Define following terms (1) Energy (2) Heat (3) Work

[3] Lists of the basic thermodynamic properties. Explain any five.

[4] Difference between following terms (Min 2 in each)

a) Point function and Path function

b) Process and Cycle

c) Extensive Properties and Intensive Properties

d) Reversible Process and Irreversible Process

e) Thermodynamic cycle and Mechanical cycle

[5] State Zeroth and First law of thermodynamics.

[6] Derive of SFEE. Explain how SFEE is applied to Nozzle and boiler.

[7] Prove that internal energy is a property.

[8] In a gas turbine, air enters with velocity 220 m/s and enthalpy 5678 KJ/Kg with steady mass

flow rate of 3.6 Kg/sec. Gas exits from the system at velocity 170 m/s and enthalpy 4560 KJ/Kg. If

54 KJ/Kg heat is wasted in to the surroundings, find power developed by the gas turbine.

.



Semester – 3rd


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ASSIGNMENT-2

[1] Explain with neat sketch (a) Boyle’s law (b) Charle’s law (c) Gay-Lussac Law (d) Regnault’s

Law

[2] Define Characteristic gas constant (R) and Universal gas constant (Ru) and write its unit.

[3] Explain Cp and Cv with definition, units and its value and Prove that Cp -Cv=R

[4] N2 gas is filled in closed cylinder of 2 m3

volume at 50 bar absolute pressure. Its temperature is

300 C. Determine mass of gas if atomic weight (M) of N2 gas is 28.

[5] Derive equation of work done in isentropic process.

[6] Put your view on paper about “Throttling Process”

[7]1 kg air at 1.5 bar absolute pressure and 300 C temperature is compressed at constant pressure

until its volume rises to three times. Determine following.

(1) Change in internal energy (2) Change in enthalpy

Take Cp=1.002 KJ/Kg K and Cv=0.714 KJ/Kg K

[8] Show following process on P-V & T-S plane. (a) Constant volume process (b) Isothermal

Process (c) Isentropic Process (d) Isobaric Process.



Semester – 3rd


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ASSIGNMENT-3

[1] Explain the C.O.P. of refrigerator, Heat pump and thermal efficiency of heat engine.

[2] Explain Kelvin Plank statement of Second law of thermodynamics with neat sketch.

[3]Derive equation of air standard efficiency of an Otto cycle.

[4] Represent diesel cycle on P-V & T-S diagrams and explain its processes.

[5] Differentiate Power producing and Power absorbing cycle

[6] Explain the term Entropy. Discuss the practical significance of entropy

[7] Gas turbine works on Brayton cycle between 6 bar and 1 bar pressure. Find air standard

efficiency. Take Ү =1.4

[8] An engine working on Otto cycle is supplied with air at 0.1 MPa, 30O

C the compression ratio is

5. Heat supplied is 2000 KJ/Kg. Calculate the maximum pressure, temperature of the cycle and the

cycle efficiency. Take Cp= 1.005 KJ/Kg , Cv= 0.718 KJ/Kg, R=0.287 KJ/KgK

[9]In Diesel cycle the compression ratio is 16, pressure and temperature in beginning of the

compression stroke are 1 bar & 20 0C respectively and the maximum temperature of the cycle 1430

0C. Find the thermal efficiency of the cycle.

r. c. technical institute, sola · 11. explain hydraulic cylinders. 12. explain the working of...

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