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SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR SARASWATI COLLEGE OF ENGINEERING AND TECHNOLOGY AT & PO. RAJPUR, TA. KADI, DIST. MEHSANA QUESTION BANK SUBJECT: MECHANICAL MEASUREMENT AND METROLOGY SUB CODE: 2141901 CHAP.1 INTRODUCTION TO METROLOGY 1 2 3 4 5 6 7 8 Explain with a block diagram generalized measuring system and its four function elements. Show a block diagram of measurement scheme for weighing machine. Briefly explain following terms giving examples; 1. Resolution 2. Threshold 3. Range 4. Span 5. Hysteresis 6. Dead zone 7. Drift 8. Sensitivity 9. Fidelity 10. Linearity 11. Precision 12. Accuracy 13. Overshoot 14. Telemetry What do you understand by line and end measurement? Discuss their relative characteristics. Briefly explain with example about relative error, random error, and systematic error. Explain the various modes of measurement with two examples. Describe with sketch international prototype meter stating material composition and limitations. What are the advantages of wavelength standard? Explain objectives of Metrology. CHAP.2 LINEAR MEASUREMENT 1 2 3 4 5 6 7 Explain working principle of Vernier caliper. Draw neat sketch and label each part. Find out the least count of Vernier caliper. Explain the construction and working of Vernier height gauge with neat sketch. Explain the construction and working of Vernier depth gauge with neat sketch. Explain working principle of micrometer. Draw neat sketch of micrometer and label each parts of micrometer. What are the precautions to be taken while using a micrometer? State the possible source of error in micrometers. Describe construction, working principle and applications of Vernier micrometer. Explain the construction and working of Telescopic gauge with neat sketch. CHAP.3 ANGULAR MEASUREMENT 1 2 3 4 5 6 Describe with sketch principle, construction and use of Autocollimator. Explain Vernier bevel protector. Explain Sine bar. Why the sine bar is not preferred for measuring the angle more than 450? Explain slip gauges. What is wringing? What are the angle gauges? How they are used? Explain briefly with neat sketch. Draw a neat sketch to illustrate the use of sine bar for measurement of taper plug gauge and explain it briefly. Page 1 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 CHAP.4 GEAR MEASUREMENT Discuss the gear tooth terminology with neat sketch. Name the various methods for measurement of tooth thickness and explain any one of them. Enlist various methods for measuring gear tooth thickness. Explain in detail about gear measurement using gear tooth Vernier caliper. Derive equation for measurement. Explain working principle of parkinson’s gear tester with neat sketch. Explain the construction and working of standard gear tester with neat sketch. CHAP.5 SCREW THREAD MEASUREMENT Discuss the elements of screw thread with neat sketch. Briefly explain with sketch the two wire method of measuring effective diameter of thread. Briefly explain with sketch the three wire method of measuring effective diameter of thread. What is the best size wire? Derive the expression for the same in terms of pitch and angle of the thread. Explain the measurement of effective diameter for internal screw thread with neat sketch. CHAP.6 MEASUREMENT OF SURFACE FINISH Explain the different surface roughness evaluation methods. Explain the construction and working of Telesurf surface roughness measuring instrument with neat sketch. Explain construction and working of Tomlinson surface roughness tester. Explain the terms “Primary texture” and “Secondary texture”. State the factors affecting surface texture. Define the following terms related to surface roughness measurement. (1) CLA (2) RMS (3) Lay CHAP.7 STRAIGHTNESS, FLATNESS, SQUARENESS& MACHINE TOOL TESTS Explain flatness measurement in brief. Explain the importance of alignment tests for machine tools. Briefly explain the alignment tests for machine tool Define the following terms: 1) Straightness 2) Circularity 3) Perpendicularity 4) Flatness Explain in brief with neat sketch the working of “Tool maker’s microscope”. Give applications. CHAP.8 TEMPERATURE MEASUREMENT Write a short note on: International temperature scale(ITS). Explain with neat sketch working of optical pyrometer. Explain the principle of thermo couple. Discuss the construction and working of thermocouple with neat sketch. Also explain their calibration method. Explain briefly the construction and working of a resistance thermometer, stating its advantages and disadvantages. Distinguish between “RTD” and “THERMISTER” Page 2 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR 1 2 3 4 5 6 CHAP.9 PRESSURE MEASUREMENT Explain the construction and working of bourdon tube pressure gauge ( along with tube materials) with neat sketch. Explain the construction and working of McLeod gauge with neat sketch. Explain the difference between a bellow gauge and a diaphragm gauge. Explain working of dead weight tester. How pressure gauge is calibrated on dead weight tester. Explain with neat sketch ring balance manometer with comment on its field of application. Briefly explain with neat sketch the Ionization gauge for pressure measurement. State its pressure measuring capability. Page 3 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR SARASWATI COLLEGE OF ENGINEERING AND TECHNOLOGY AT & PO. RAJPUR, TA. KADI, DIST. MEHSANA QUESTION BANK SUBJECT: ENGINEERING ECONOMICS AND MANAGEMENT SUB CODE: 2140003 Question Bank for Engineering Economics and Management Q-1 Define Economics and its different definitions of economics from its different viewpoints. Explain the scope of Economics. Q-2 Point out the difference between 1. Microeconomics and macroeconomics 2. Accounting Cost and Economic Cost 3. Private Cost and Social Cost. 4. Difference between Perfect Competition and Monopoly 5. Perfect Competition and Monopolistic Competition 6. Management and Administration 7. Difference between Marketing and Selling 8. Formal Organization and Informal Organization 9. Recruitment and Selection 10. Tall Vs Flat organization Structure 11. Societal and Holistic Marketing Concept Q-3 Explain the theory of demand and supply relationships in detail. Q-4 Explain determinants of demand and supply. Also Explain the different terms such as Joint demand, Composite demand, Direct and Derived demand, Industry demand and company demand. Q-5 Explain in detail the Price Elasticity, Income Elasticity and Cross Elasticity of demand. Q-6 Define Elasticity. Explain its determinants, Income and Measurement of Elasticity. Q-7 Explain the Indifference curve technique and theory of consumer behavior. Q-8 Explain the following terms: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Money cost Real cost Opportunity Cost Sunk Cost Incremental Cost Differential Cost Explicit Cost Implicit Cost Accounting Cost Economic Cost Social Cost of Production Private Cost of Production Fixed Cost and Variable Cost Page 4 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. Business Cost and Full Cost Total Cost, Average Cost and Marginal Cost Total Revenue, Average Revenue, Marginal Revenue and Incremental Revenue Margin of Safety Profit Volume ratio Dumping and Price Discrimination National Income at Current Price, National Income at Constant Price Gross Domestic Product Gross National Product Net National Product Net Domestic Product Personal Income and Disposal Income Span of Control Q-9 Write a Short Note on the following : 1 Breakeven Analysis, 2. Perfect Competition, 3. Monopoly, 4. Monopolistic Competition, 4. Oligopoly, 5. Planning 6. Organizing, 7. Directing 8. Leading 9. Controlling 10. Co-ordination 11. Scientific Management 12.Administrative theory 13. Bureaucratic Management 14. Behavioral Approach 15. Functional Structure 16. Divisional Structure 17. Hybrid Structure 18. Matrix Structure 19. Types of Organization (Line organization, Functional Organization and Line and Staff Organization 20. Methods of Demand Forecasting 21. Bases of Market Segmentation. Q-10 Define Management. Explain in detail whether it is Art, Science or both. Q-11Explain in detail the various levels of Management and also explain different types of Management Skills Q-12 Explain 14 principles of Henry Fayol. Q-13 Explain in detail the five levels of Hierarchy of Needs given by Abraham Maslow. Q-14 Explain the concept Centralization and Decentralization. Along with it explain its factors, Advantages and Limitations of Centralization and Decentralization. Q-15 Explain the 4 P’s Of Marketing Mix Model. Page 5 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR FACULTY OF ENGINEERING SHREE SARASWATI EDUCATION SANSTHAN’S GROUP OF INSTITUTIONS QUESTION BANK SUBJECT : MATHS IV SEMESTER : 4th BRANCH : mech 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Determine the polynomial by Newtons Forawrd Difference formula for the following table x 0 1 2 3 y -10 -8 -8 -4 Determine y(0.1) and y(0.2) correct upto four decimal places from 𝒅𝒚 = 𝟐𝒙 + 𝒚, 𝒚(𝟎) = 𝟏 𝑼𝒔𝒆 Fourth order Runge Kutta Method 𝒅𝒙 4 10 5 40 2.5 Using Simpson’s 1/3 rule evaluate ∫1 𝑓(𝑥)𝑑𝑥 from the following table x 1 1.3 1.6 1.9 2.2 2.5 F(x) 1 1.69 2.56 3.61 4.84 6.25 2 2 Define Harmonic function. Show that u(x,y)=𝑥 − 𝑦 + 𝑥 is harmonic. Find the corresponding analytic function f(z). Find the bilinear transformations that maps the points 𝑧1 = 1, 𝑧2 = 𝑖, 𝑧3 = −1 onto 𝑤1 = −1, 𝑤2 = 0, 𝑤3 = 1 respectively. Evaluate ∮ 𝑡𝑎𝑛𝑧𝑑𝑧 where C is |𝑧| = 2 1 Find Laurent’s series expansion in power of z that represents 𝑓(𝑧) = 𝑧 2 (1−𝑧) for domain (1)|𝑧| < 1 𝑎𝑛𝑑 (2)|𝑧| > 1 Find the analytic function f(z )= u+iv if u-v = (x-y) (x2+4xy+y2) State and prove Cauchy Riemann conditions for a function f(z)= u(x,y)+iv(x,y) to be analytic. Find the residue of f(z) = 6 3 2 1−𝑒 𝑧 𝑧3 at z=0. Evaluate ∫−2(1 + 𝑥 2 ) 𝑑𝑥 by Gaussian formula for one point, two point, three point. Evaluate ∫(𝑥 2 − 𝑖𝑦 2 )𝑑𝑧 along the parabola 𝑦 = 2𝑥 2 from (1,2) to (2,8). Determine y(12) by Lagrange’s Interpolation from following values: x 11 13 14 18 20 23 y 25 47 68 82 102 124 Prove that (1) ∆ = 𝟏 − 𝒆𝒉𝑫 (2) (𝟏 + ∆)(𝟏 − 𝛁) = 𝟏 Employ Stirling’s formula to compute y(35) from the following table: x 20 30 40 50 y 512 439 346 243 Page 6 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR QUESTION BANK SUB: M.D.I.D. 1) Explain functions and classification of shaft. 2) Find the diameter of a solid shaft to transmit 30kw at 230rpm.The shear stress is 50MPa.If a hollow shaft is to be used in place of solid shaft ,find the inside and outside diameter when the ratio of inside to outside diameter is 6:8. 3) Define riveted joints. Explain different types of riveted joint with neat sketch. 4) A double riveted double cover butt joint is made of 12mm thick plates. The rivet diameter and pitch are 20mmand 65mm respectively. Find the efficiency of the joint if,ϭt=100MPa, ϭcr=120MPa,τ=75N/mm2 5) What are the different types of sunk key? Explain each with application. 6) Design a protective type C.I. flange coupling for a steel shaft transmitting 15KW at 200rpm and having an allowable shear stress of 40N/mm2 The working stress in the bolts should not exceed 30N/mm2.Assume that the same material is used for shaft and key and that of crushing stress is twice the value of its shear stress .The maximum torque is 25% greater than the full load torque. The shear stress for C.I. is 14N/mm 7) What is stress concentration? Explain methods to relieve stress concentration? 8) Explain any two stresses with simple sketches. 9) Define factor of safety and state the important factors affecting the factor of safety. 10) Explain different types of keys with its applications. 11) A horizontal shaft AD supported in bearings at A and B and carrying pulleys at C and D is to transmit 75 kW at 500 r.p.m. from drive pulley D to off-take pulley C, as shown in Fig . Calculate the diameter of shaft. The data given is : P1 = 2 P2 (both horizontal), Q1 = 2 Q2 (both vertical), radius of pulley C = 220 mm, radius of pulley D = 160 mm, allowable shear stress = 45 MPa\ 12) What are the advantages of welded joint over riveted joint? 13) A double riveted double cover butt joint in plates 20mm thick is made with 25mm dia. Rivets at 100mm pitch. The permissible stress are ft=120 N/mm2 , Shear stress= 100 N/mm2 ,fc= 150 Page 7 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR N/mm2 . Find the Efficiency of joint, taking the strength of the rivets in double shear as twice than that of single shear. 14) The shaft and the flange of a marine engine are to be designed for flange coupling in which the flange is larger at the end of the shaft. Power of the engine = 3mw Speed of the engine = 100r.p.m. Permissible shear stress in bolts and shafts = 60N/mm2 No. of bolts used = 8 Pitch circle dia. Of bolts = 1.6* dia. Of shaft Find (1) Dia. Of shaft (2) Dia. Of bolt (3) Thickness and dia. Of flange. 15) A hollow shaft has greater strength and stiffness than solid shaft of equal weight Explain. 16) State the applications of splined shaft. 17) How does the working of a clamp coupling differ from that of a muff coupling ? 18) A 45mm diameter shaft is made of steel with a yield strength of 400 N/mm2 . A parallel key of size 14 mm wide and 9 mm thick made of steel with a yield strength of 340 N/mm2 is to be used. Find the required length of key, if the shaft is loaded to transmit the max. permissible torque. Use max. shear stress theory and assume F.O.S. = 2 19) Explain the importance of selection of materials in machine design. 20) Classify the different types of riveted joints? Explain the terms with the sketches- Pitch, Margin, Transverse pitch, Diagonal pitch. 21) Show by neat sketches the various ways in which a riveted joint may fail. 22) Design a double riveted, double strap, chain type butt joint for plates having 10mm thickness. Also find efficiency of the joint. Take s t =95 N/mm², s c =155 N/mm², t =80 N/mm² 23) A welded joint as shown in figure is subjected to an eccentric load of 2 KN. Find the size of weld, if the maximum shear stress in the weld is 25 N/mm². 24) Differentiate between flexible coupling and rigid coupling? State the different applications of coupling? 25) Design and draw a rigid type cast iron flange coupling for a steel shaft transmitting 15 KW at 200 rpm and having an allowable shear stress of 40 KN/mm². The maximum torque is 25% greater than the full load torque. The working stress in the bolt should not exceed 30 KN/mm². Assume that the same material is used for shaft and key and that the crushing stress is twice the value of its shear stress. The shear stress for cast iron is 14 KN/mm². Page 8 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY, (SCET) RAJPUR MANUFACTURING PROCESSES - II (151901) Question Bank Chapter 1 Manufacturing Processes Give broad classification of manufacturing processes. 2. State various criteria for the selection of manufacturing process. Also discuss about significance of these criteria. 1. Chapter 2 Foundry Technology:Pattern & Casting Practices 1. List the various pattern materials. Explain any two along with their advantages and limitations. 2. Define following terms: 1. Cope, 2. Drag, 3. Core, 4. Chaplet. 3. Explain precision investment casting stating its advantages, limitations & applications. 4. What do you mean by the term gating system in the context of sand casting? Explain clearly the functions of various elements of gating system for sand casting. 5. Differentiate between hot chamber and cold chamber die casting. 6. Explain centrifugal casting process. What is the main difference between semi-centrifugal and centrifuging casting process. 7. Classify the types of pattern. Explain the any two patterns with neat sketch. 8. Classify the types of foundry furnaces. Describe cupola furnace with neat sketch. 9. Describe casting defects stating their causes and remedies. 10. Enlist various types of pattern allowances and discuss about the necessity of providing it on the pattern for sand casting. 11. Discuss various types of moulding sand. 12. Describe core making and core materials briefly. 13. Explain moulding properties and sand testing. 14. Explain the following with neat sketch : (i) Core print (iv) Draft allowance. (ii) Sweep pattern (iii)Match plate pattern Page 9 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR Chapter 3 Metal Joining Processes 1. Classify the metal joining process along with the types of welding process. Explain oxyhydrogen welding process with neat sketch. 2. Discuss about varies types of flames commonly used in gas welding process with specific applications of each type. 3. Discuss about various modes of metal transfer in Arc welding process. 4. Explain about specific functions of various ingredients to be added in the welding rod for arc welding. 5. Distinguish arc welding process and resistance welding process briefly. Explain the resistance welding cycles. 6. What is laser beam welding process? Explain the steps involved in the process and state its application. 7. Distinguish TIG and MIG welding process. 8. Write short note on Electron Beam welding. 9. Explain gas welding process with neat sketch and state its advantages and limitations. 10. What are the common welding troubles, causes and remedies for them? Chapter 4 Forming & Shaping Processes 1. Distinguish hot working process and cold working process with its merits & demerits. 2. Describe wire and tube drawing process with neat sketch. 3. Classify the cold working processes. Explain Coining and Embossing process with neat sketch. 4. Differentiate between Punching and Blanking operations in context of purpose, metal scrap, punch and die dimensions. 5. Discuss about various types of rolling mill arrangements. What is the basic difference between Deep drawing and Wire drawing? 6. List various forging defects. Also discuss about its probable causes and remedies. 7. List the factors influencing rolling process. Explain the effect of roller diameter and metal friction on rolling process. 8. Write a short note on roll pass sequence. 9. Differentiate between forward extrusion and backward extrusion. Page 10 SARASWATI COLLEGE OF ENGINEERING & TECHNOLOGY,(SCET) RAJPUR Chapter 5 Plastic Technology 1. 2. 3. 4. Explain elastic and plastic deformation process briefly. Classify the types of plastics along with the general properties of plastics. Distinguish extrusion and thermoforming process of plastics. List various plastic processing technologies. Discuss about Injection moulding process. 5. Discuss about Blow moulding and Roto moulding processes for plastic part manufacturing with special emphasis on technology and end use of the process. 6. Explain (i) Difference between thermoplastic and thermosetting. (ii) Process of Polymerization Chapter 6 Super Finishing Processes 1. List various super finishing processes. Briefly Discuss about Buffing and Burnishing processes with specific applications of each process. 2. State the functions of super finishing processes. Explain with sketch working of grinding process. 3. The marking system for conventional grinding wheel is as under: 51 A 60 K 5 V 05 Explain each term in marking system. 4. Why finished surface is important on manufactured component? Discuss about Lapping and Honing processes for surface finishing. 5. Write short note on powder coating. ******* Page 11