Model Question Papers 4th Semester - Takshshilatakshshila.org/doc_pdf/MQP4Sem.pdf · Model Question...
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Model Question Papers 4 th Semester AU/IP/ME-402 Material Science and Metallurgy Crystal atoms of solid: UNIT-I Q.1. List various types of bonds occurring in details giving suitable example of each? 3 Q.2. Explain space lattice & crystal system arrangement of atom in BCC, SCC, FCC &HCP crystals? \3 Q.3. How do you classify crystal? Describe the various crystal systems? 3 Q.4. Define effective number of atoms per unit cell calculate the effective number of atoms per unit cell for BCC, FCC, SCC and HCP structures? 7 Q.5. Define atomic packing factor (APF) and obtain to depression for SCC, BCC, FCC and HCP structures? 7 Q.6. What is a refractory material? Explain important properties of the refectory material 3 Q.7. Differentiate b/w acid, base & neutral refractoriness? 2 Q.8. A FCC crystal has an atomic radius of 1.246A 0 what are the d200, d220, & d111 spacing. 2 Q.9. Differentiate b/w grey cast iron & white cast iron? 2 Q.10. Explain the process of manufacturing wrought iron. 7 Q.11. Explain the process of manufacturing pig iron in a blast furnace with the help of neat sketch? 7 Q.12. Explain Manufacturing process of cast iron? 7 Q.13. Explain the Bessemer process of converting iron into steel? 7 Q.14. Explain the open hearth process of steel Manufacturing? 7 Q. 15. Discuss different types of cast iron with its composition, properties and uses of various type of cast iron? 7 Q.16. Give composition, properties and uses of silicon manganese steel? 2 Q.17. Give composition, properties and uses of high speed steels? 3 Q.18 . Give Composition, properties & uses of stainless steels? 3 Q.19. Write short notes on (a) Chrome nickel steel (b) Molybdenum steel(c) Tungsten steel (d) Chromium steel (e) Manganese steel. 7
Transcript of Model Question Papers 4th Semester - Takshshilatakshshila.org/doc_pdf/MQP4Sem.pdf · Model Question...
Model Question Papers
4th Semester AU/IP/ME-402 Material Science and Metallurgy
Crystal atoms of solid: UNIT-I
Q.1. List various types of bonds occurring in details giving suitable example of each? 3
Q.2. Explain space lattice & crystal system arrangement of atom in BCC, SCC, FCC &HCP crystals? \3
Q.3. How do you classify crystal? Describe the various crystal systems? 3
Q.4. Define effective number of atoms per unit cell calculate the effective number of atoms per unit cell for
BCC, FCC, SCC and HCP structures? 7
Q.5. Define atomic packing factor (APF) and obtain to depression for SCC, BCC, FCC and HCP structures? 7
Q.6. What is a refractory material? Explain important properties of the refectory material 3
Q.7. Differentiate b/w acid, base & neutral refractoriness? 2
Q.8. A FCC crystal has an atomic radius of 1.246A0 what are the d200, d220, & d111 spacing. 2
Q.9. Differentiate b/w grey cast iron & white cast iron? 2
Q.10. Explain the process of manufacturing wrought iron. 7
Q.11. Explain the process of manufacturing pig iron in a blast furnace with the help of neat sketch? 7
Q.12. Explain Manufacturing process of cast iron? 7
Q.13. Explain the Bessemer process of converting iron into steel? 7
Q.14. Explain the open hearth process of steel Manufacturing? 7
Q. 15. Discuss different types of cast iron with its composition, properties and uses of various type of cast iron?
7
Q.16. Give composition, properties and uses of silicon manganese steel? 2
Q.17. Give composition, properties and uses of high speed steels? 3
Q.18 . Give Composition, properties & uses of stainless steels? 3
Q.19. Write short notes on (a) Chrome nickel steel (b) Molybdenum steel(c) Tungsten steel (d) Chromium steel
(e) Manganese steel. 7
Plastic deformation of Metals: UNIT- II
Q.1. Differentiates between point defects and line defects? 2
Q.2. Explain deformation of metal by slip and twinning? 2
Q.3. Briefly explains point defects with classifications? 3
Q.4. Briefly explains line defects with classification? 3
Q.5. Differentiate between surface defects and volume defects? 7
Q.6. Explain mild steel and cast iron yield point phenomenon? 7
Q.7. Briefly explains cold and hot working of metals and their effects on mechanical properties? 7
Q.8. What do you mean by principles of Re-crystallization and grain growth phenomenon? 7
Q.9. Describe ductile, brittle and fatigue failure briefly? 7
Q.10. Why annealing is required in cold worked metals? 3
AU/IP/ME-402 Material Science and Metallurgy
Alloy Formation and Binary Diagram: UNIT- III
Q.1- Explain hume – rotterye‟s rules? 2
Q.2- What do you mean by allotropy of metals? 2
Q.3- Explain solid solution? 2
Q.4. Differentiate between substitution and interestial solid solution? 3
Q.5. Briefly explain binary-phase equilibrium diagram? 3
Q.6. Explain gibbs phase rule? 3
Q.7. Differentiate between eutectic, eutectoid & peritectic system? 3
Q.8. Briefly explain Iron carbon equilibrium diagram with neat sketch? 7
Heat Treatment of Alloys Principles of Heat Treatment of Steel: UNIT- IV
Q.1 What do you mean by heat treatment? 2
Q.2 Explain TTT curves /diagram? 7
Q.3 Explain Annealing and normalizing process? 3
Q.4 Explain spheradizing and hardening process? 7
Q.5 Briefly explain tempering, quenching, mar-tempering process. 7
Q.6 What do you mean by case hardening and precipitation hardening. 7
Q.4. Describe Eutectic phase diagram for Bi-Cd binary system? 7
Q.5. Describe paratactic phase diagram for Sn-Pb binary system? 7
Q.6. Explain lever rule and derive it? 3
Q.7. Describe allotropic transformations of iron? 3
Q.9. Differentiate b/w ᾳ ,Ὑ & iron? 2
Q.10. Describe primary and secondary transformation in iron-carbon equilibrium diagram? 7
Q.11 Write short notes on- (a) Ferrite (b) Cementite (c) Pearlite
(d) Leadeburite (e) Martensite (f) Troosite (g) Sorbiite. 7
Properties of Material: UNIT-V
Q.1. Differentiate between fatigue & creep? 3
Q.2. Give hate on cast iron and steel? 2
Q.3. Explain what is ferrous and non ferrous alloys? 3
Q.4. Write short notes on (a)Bronze (b)brasses(c)Duralumin (d)Bearing metals 7
Q.5. What do you mean by plastics, composites and ceramics materials- 7
Q.6. Explain various types of plastics with their properties and selection? 7
Q.7. Explain plastic molding terminology? 3
Q.8. What FRP, GRP resin adhesive and their application? 7
Q.9. What is powder metallurgy? 3
Q.10. Explain only 2 methods of making products by power metallurgy techniques? 7
AU/IP/ME-403 Theory of M/C and Mechanism
Mechanisms and Machines: UNIT – I
Q.1. Explain The term Kinematic link. Give the Classification of kinematic link. 2
Q.2 What is a Machine? Differentiate between a machines and a structure. 2
Q.3. Explain the terms: (a) Lower Pair (b) Higher Pair © Kinematic chain (d) Inversion 3
Q.4. What is the Significance of degree of freedom of a kinematic chain when it functions as a Mechanism?2
Q.5. Define complete & incomplete constraints in Lower & Higher Pairs & illustrating your answer with neat
sketches. 3
Q.6. Explain different kinds of kinematic pairs giving examples for each one of them. 3
Q.7 Explain Grubler‟s criterion for determining degree of freedom of mechanisms. 3
Q.8 Describe and sketch the 4 bar chain mechanism & why slider crank mechanism is a modification of the
basic of 4 bar chain mechanism. 3
Q.9 Show that slider crank mechanism is a modification of the basic 4 bar chain mechanism 3
Q.10 Sketch and explain the various inversions of a slider crank chain. 7
Q.11 Sketch and explain any two inversions of a double slider crank chain. 7
Q.12 Describe & sketch the working of two different types of quick return mechanism. 7
Kinematic analysis UNIT - II
Q.1 - What do you understand by instantaneous center of rotation in kinematic of machines. 2
Q.2 - Explain the space centroid and body centroid. 2
Q.3 - Explain with neat sketch the instantaneous centre method for determination of velocities of links and
mechanism. 3
Q.4 - write the relation between number of instantaneous centers and number of links in a mechanism. 3
Q.5 - Discuss the 3 types of instantaneous centers for a mechanism? 3
Q.6 - State and prove that “Aronhold Kennedy‟s theorem” of instantaneous centers. 7
Q.7 - State and prove Kennedy theorem. 7
Q.8 - What do you mean by coriolis components of acceleration? 7
Gears UNIT –III
Q.1- Give the classification of gears? 2
Q.2- Explain different terminologies used in case of super gear along with neat sketch?
3
Q.3- Distinguish between involutes and cycloidal profiles with neat sketches and state their relative merits and
demerits? 3
Q.4- State and the law of gearing and give its proof? 7
Q.5- What is meant by length of path of contact and arc of contact? Derive its formula between two mating spur
gears? 7
Q.6 Derive the relation of minimum number of teeth on the gear wheel and pinion to avoid interference?
7
AU/IP/ME-403 Theory of M/C and Mechanism
Cams & Gear Trains: UNIT - IV
Q.1. What is a cam mechanism? What are its uses? 2
Q.2. Define the following- (i) Base circle (ii) Pressure angle (iii) Trace point (iv) Cam angles 2
Q.3. Define the following- (i) Pitch point (ii) pitch circle (iii) Pitch curve (iv) Prime circle (v) Lift. 3
Q.4. Define (i) Pressure angle (ii) Throw of follower (iii) Period of Dwell (iv) Cam profile 3
Q.5. Define (i) Angle of Ascent (ii) Angle of dwell (iii) Angle of Descent (iv) Angle of action. 3
Q.6. Define (i) Velocity ratio (ii) Train value. 3
Q.7. Explain with a neat sketch the sun and planet wheel? 3
Q.8. What is an epicyclical gear train? Give the equation of torque in an epicyclical gear train? 3
Q.9 - What do you understand by gear trains? Discuss the various types of gear trains? 7
Q.10. What are the different types of motion with which a follower can move? 3
Q.11 - Sketch and describe the different types of follower which are used with radial or disc cams.
Discuss the advantages and disadvantages of each type? 3
Q.12- Derive an expression for displacement, velocity and acceleration of a follower during ascent and descent
assuming that the follower moves with S.H.M.? 7
Q.13 Derive an expression for displacement, velocity and acceleration for cyclonal motion of the follower? 7
Q.14 Deduce an expression for displacement, velocity and acceleration for the roller follower being operated by
a straight flank circular nose tangent cam when the roller makes contact with the straight flank. 7
Gyroscopic Action in Machines UNIT – V
Q.1 - Explain the terms spin and precession. How do they differ from each other? 2
Q.2 - Explain steering, Pitching, and rolling motion? 3
Q.3 - Explain gyroscopic stabilization. 3
Q.4 - Explain in brief an accuracy of gyroscopic effect giving examples. 3
Q.5 - What do you mean by Gyroscopic couple Derive a relation for its magnitude. 3
Q.6 - Explain in what way the gyroscopic couple affects the motion of an aircraft while taking a turn. 7
Q.7 - Describe the construction and operation of a many brake absorption dynamometer. 3
Q.8 - Sketch and describe one form of transmission dynamometer 3
Q.9 - Explain the Gyroscopic affect on two wheeler vehicles. 7
Q.10 Explain the Gyroscopic affect on four wheeler vehicles. 7
ME-404 Thermal Engineering and gas dynamics
Steam Generators UNIT - I
Q.1. Define equivalent evaporation & factor of evaporation. 2
Q.2. Explain the Benson Boiler with its advantages. 7
Q.3 Explain Working of Loffler boiler with its construction & advantages. 7
Q.4 Explain working of velox boiler with its construction & advantages. 7
Q.5 Differentiate between conventional & high pressure boiler. 3
Q.6 Describe how boilers are classified. 3
Q.7 Describe unique features of high pressure Boiler. 2
Q.8 Explain Boiler Trial. 2
Q.9 Define & classify different types of draught. 7
Q.10 Explain boiler performance. 3
Phase change Cycles UNIT - II
Q.1 Represent Carnot Vapour cycle on P-V & T – S diagrams. 3
Q.2 Describe limitations of Carnot cycle. 2
Q.3 Describe Carnot vapour & describe the expression for to efficiency. 7
Q.4 Describe the different operations of Rankine cycle & describe an expression of its
efficiency. 7
Q.5 Describe the effects of boiler pressure,condenser pressure & superheating on the
efficiency of Rankine cycle. 3
Q.6 Describe and obtain expression for modified Rankine cycle efficiency. 3
Q.7 Describe the advantages of reheating the steam in a Rankine reheat cycle. 2
Q.8 Define super critical Boilers. 2
Q.9 Define steam rate. 2
Q.10 Describe & explain reheat cycle with PV & TS diagram. Also describe its efficiency. 7
Gas dynamics Unit III
Q.1 Define Mach number and various types of flow with respect to Mach number. 3
Q.2 Define and explain Mach cone, Mach angle, Zone of silence & Zone of action. 3
Q.3 What is stagnation state? 2
Q.4 What do mean by stagnation property? 2
Q.5 What is Normal shock? 2
Q.6 Derive the following relationship for variable area isentropic flow of gas dA/A=dv/v
(M2-1). 7
Q.7 Differentiate between a nozzle & diffuser. 3
Q.8 Show that maximum discharge of steam through nozzle take place when the ratio of
steam pressure at the throat to the inlet pressure is given by P2/P1=(2/n+1)n/n-1
7
ME-404 Thermal Engineering and gas dynamics
Air compressors UNIT – IV
Q.1. State the different uses of Compressed air. 2
Q.2 What are the advantages of multistage compression? 2
Q.3 Draw the theoretical indicator diagram of a two- stage reciprocating compressor with
clearance. 3
Q.4 Classify air compressors. Describe the working of a single stage reciprocating compressor.
7
Q.5 Derive the expression for the work done when compression is
(i) Isothermal (ii) Polytropic (iii) Isentropic.
Q.6 Discuss multistage compression & its advantages. 3
Q.7 Derive an expression for work done by a two- stage reciprocating air compressor with
inter cooler. 3
Q.8. Describe multistage reciprocating compressor with inter cooling and derive Condition for
Minimum work done in compressor. 7
Q.9. Describe rotary compressors & classify them. 3
Q.10 Describe working of rotary compressors. 3
Q.11 Compare reciprocating & rotary compressors. 3
Q.12 Describe the phenomenon of surging. 2
Q.13 Describe the phenomenon of choking. 2
Steam condensers UNIT – V
Q.1. What is a Condenser. 2
Q.2 Describe different types of condenser. 3
Q.3 What is heat exchanger? 3
Q.4 Classify the heat exchanger. 2
Q.5 Define fouling or scaling. 3
Q.6 Explain the cooling tower? 3
Q.7 Classification of steam condenser. 3
Q.8 Give on expansion for overall heat transfer coefficient. 3
Q.9 Define heat exchanger efficiencies. 3
Q.10 State application of heat exchanger. 3
Q.11 Derive the expansion for Parallel flow heat exchanger. 7
Q.12 Explain the effectiveness MU Method of heat exchanger analysis and design. 7
Q.13 What are the sources of air leakage in steam condensers. 7
Q.14 Write a short note on the bulk pressure of steam condenser and its effects on
power plant performance. 7
Subject –Fluid Mechanics (ME-405)
UNIT-1(2Marks Questions)
Q1. Name various properties of fluids and define any four of them.
Q2. Define Cohesion and adhesion of fluide property.
Q3. What is meant by viscosity of a liquid.
Q4. What do you understand by vapour pressure.
Q5. Define absolute pressure and gauge pressures.
Q6. Define dynamic viscosity & kinematic viscosity of the liquid.
UNIT-1(3Marks Questions)
Q1. State and prove Pascal‟s law of fluid pressure.
Q2. What do you meant by total pressure force and center pressure.
Q3. State Archimedes principle. Also define buoyancy and center of buoyancy.
Q4. Write short note on Stability of floating bodies.
Q5. What do you meant by metacenter hight.
Q6. What is the difference between simple manometer and differential manometer
UNIT-1(7Marks Questions)
Q1. Derive & expression for total pressure and center of pressure for an inclined surface submerged in
liquid.
Q2. Aconical vessel having its outlet at A to which a U-tube manometer is connected. The reading of
the manometer shown in the figure is when the vessel is empty. Find the reading of the
manometer when the vessel is completely filled with water.
Q3. Determine the total pressure and center of pressure on an isosceles triangular plate of base 4m
when it is immersed vertically in an oil of specific gravity 0.9 .The base of the plate coincides
with the free surface of oil.
Q4. A block of wood of specific gravity 0.7 floats in water. Determine metacenter hight of the block
if its size is 2.5m x0.8m.
Q5. Explain the working of a U-tube differential manometer.
UNIT-2(2Marks Questions)
Q1. Distinguish between ideal and real fluids.
Q2. Define types of fluid flows. Also define flow net and its uses.
Q3. Define Rotational and irrotational flow.
Q4. Define what is local acceleration and convective acceleration.
Q5. Write about stagnation point and separation of flow.
Q6. Define stream function and velocity function.
UNIT-2(3Marks Questions)
Q1. Write short notes on –Vorticity and circulation
Q2. Derive the continuity equation in 3-dimension in Cartesian co-ordinates.
Q3. Define Source, sink doublet and uniform flow with examples.
Q4. write short notes on-free and forced vortex.
Q5. Define different types of displacement and deformations a fluid partical may undergo in course of
its motion
UNIT-2(7Marks Questions)
Q1 Determine the missing component of the velocity distribution such that they satisfy the continuity
equation-
u= 2x2 +2xy, v=2yz
2 +3z
2, w=?
Q2. The velocity vector in a fluid flow is given by-
V=2x3i +4tk- 5x
2yj Find the velocity and acceleration of a fluid at (0, 2, 3) at time t=1
Q3. A2.5m long conical nozzle converging linearly from 0.2 m to 0.1m diameter, is subjected to an
inlet flow varying from 0.0 to 1.0 m3/s in 5 seconds compute the total acceleration at the mid-
length of the nozzle at the mid time of variation for uniform flow over each cross section.
Q4. The velocity components of a two dimensional incompressible flow are given by
U=2y + y/√x2 +y
2 and v= -2x – x/√x
2 +y
2 work out the stream function.
Q5. If Ҩ= 2xy, find x and y component of velocity at (1,3) and (3.3) .Calculate the discharge passing
between streamlines passing through these points.
UNIT-3(2Marks Questions)
Q1. Wright short notes on fluid dynamics.
Q2. What is impulse momentum equation? Give two example of its equation.
Q3. Wright short notes on pitot tube.
Q4. Wright short note on current meter.
Q5. What is mouthpiece.
Q6. Wright short note on orifice meter.
UNIT-3(3Marks Questions)
Q1. Give a comparison of orifice meter and venturimeter.
Q2. What is difference between a notches and weir? How are the notches and weirs classified?
Q3. What do you mean by Rotameter.
Q4. Explain pitot tube and derive the equation for the velocity of flow in a pipe using Pitot tube.
Q5. Obtain an expression for calculating the discharge over a weir. State the assumption Made
Q6. What are the advantages of a triangular notch over a rectangular notch.
UNIT-3(7Marks Questions)
Q1. Derive Euler‟s equation of motion in three dimensional flow.
Q2. State and prove Bernoulli‟s equation and list assumption made in the derivation.
Q3. Explain the different hydraulic coefficients of an orifice. Why the coefficients of discharge of an
Orifice meter is smaller than venturimeter.
Q4. A bend in pipe line conveying water gradually reduces from 60 cm to 30cm diameter and deflect
the Flow through an angle of 600.At the larger end the gauge pressure is 2kg/cm
2 .Determine the
magnitude and direction of the force exerted on the bend.
(a) When there is no flow.
(b) When the flow is 900 litres per sec.
Q5. A venturimeter has an area ratio 9 to 1. The larger diameter 40cm .During flow the recorded
pressure head in the larger section is 6.5m and at the throat is 4m. Calculate discharge of liquid in
litres/sec.
UNIT-4(2Marks Questions)
Q1. What is dimensional analysis? Give its advantage.
Q.2 What is dimensional homogeneity? Give its application.
Q3. Wright short note on Rayleigh‟s method of dimension analysis.
Q4. What is the advantage of Buckingham‟s 𝜋-theorem over Rayleigh method of dimension analysis.
Q5. What is model testing? Give its advantages.
UNIT-4(3Marks Questions)
Q1. What are different dimensionless numbers?
Q2. Explain different types of similarities.
Q3. Wright a short note on Hydraulic similitude.
UNIT-4(7Marks Questions)
Q1. Explain the Buckingham„s pi theorem of dimensional analysis.
Q2. Show that using dimensional analysis the resistance R to the motion of a sphere of diameter D
moving with uniform velocity V through a fluid having 𝜌 and viscosity 𝜇 may be expressed as
R= (𝜌D2V
2) ∅(𝜇/𝜌VD)
Q3. Using Buckingham„s pi theorem show that velocity through a circular orifice is given by-
V= √2gH ∅ [ D/H ,𝜇/𝜌VH]
Q4. The equation for specific speed for a turbine is given by Ns= N√P/H5/4
By 𝜋- theorem and using variable such as power P, speed N, head H diameter D of the turbine ,
density 𝜌 Of the fluid and acceleration due to gravity g, deduce the above expression for Ns.
UNIT-5(2Marks Questions)
Q1. Wright short note on – Reynolds‟s experiment and number.
Q2. Name the various types of head loss during pipe flow.
Q3 Wright short note on Model‟s chart.
Q4. Wright short note on Laminar flow between plates.
Q5. Wright short note on Lubrication principle.
UNIT-5(3Marks Questions)
Q1. Wright short note on Stock‟s law.
Q2. Obtain an expression for power absorbed in foot step bearing.
Q3. Obtain the condition for maximum efficiency in transmission of power through a pipe line.
Q4. What is laminar sub layer? How it is used define the roughness of the pipe .
Q5. Wright short note on laminar flow through circular pipe .
UNIT-5(7Marks Questions)
Q1. Derive Hagen –poiseuille equation and state the assumption made.
Q2. Derive Darcy-Weisbach equation applicable for head loss in pipe due to friction.
Q3. Oil of specific gravity 0.82 is pumped through a horizontal pipe line 150mm dia and 4km long at
the rate of 15liters/sec .The pump has an efficiency of 68% and requires 7.5 kw to pump the oil
.Then Calculate –
(a) The dynamic viscosity of oil
(b) Is the flow laminar?
Q4. A pipe 60mm dia and 400m long slopes upwards at 1 in 50 an oil of viscosity 0.9 N-s/s2 and
specific gravity 0.90 is required to pumped at the rate of 5 liters/sec.
(a) Is the flow laminar?
(b) What pressure difference is required to attain this condition?
(c) What is the center line velocity and the velocity gradient at pipe wall?
Q5. Show that the discharge per unit width between two parallel plates distance b apart , when one
plate Is moving at velocity v while the other one is held stationary for the condition of zero shear
stress at Fixed plate is q=vb/3.
