Sem6

Unit I:  
a) Measurements: International standards of length-Line and end measurement, 
Need of measurement, possible errors in measurement, slip gauges. 
 
b) Tolerances and gauging: Unilateral and bilateral tolerances, Limits, Fits, Types 
of Fits, IS specifications of limits. Importances of limits, System in mass 
production, limit gauges used for plain and taper works. 

Unit II:  
a) Magnification : Principles and characteristics of measuring instruments, 
Mechanical, Optical, electrical, Pneumatic method of magnification, different 
types of Verniers, Micrometers, Dial gauges, Mechanical and pneumatic, Types 
of comparators. Use of comparators in inspection. 
 
b) Measurement of angles, tapers and radius : Bevel Protractor, Spirit level, 
Clinometers, angle Decker, standard balls and rollers for angle measurement, 
angle slip gauges, radius measurement of circular portion, measurement of 
concave and convex surface radius. 

a) Interferometry: Principle of Interferometry and application in checking of 
flatness, angle and height. 
b) Straightness and Flatness: Straight edge, use of level beam comparator, 
autocollimator, testing of flatness of surface plate (Theoretical treatment 
only) and surface roughness.

Surface finish measurement 
a)  Surface finish: Types of textures obtained during machine operation, range of 
C.L.A. value   in   different   operations   in   numerical   assessment   of   surface   
finish (B.I.S. Specifications of C.L.A. value)-sample length of different machining 
operations. Direction of lay, texture, symbols, instruments used in surface finish 
assessment, Introduction & applications of: Coordinate Measuring Machine. 
b) Quality control: Concept of Quality and quality control, elements of quality and 
its growth, purpose, setup, policy and objective, factors controlling and quality of 
design and conformance, balance between cost and quality and value of quality. 
Specification of quality, planning through trial lots and for essential information. 

a) Measurement of Spur Gears: Run out checking, Pitch measurement, profile 
checking, backlash checking, tooth thickness measurement, alignment checking, 
errors in gears, checking of composite errors. 
b) Measurement of External Threads: Different errors in screw threads, 
measurement of forms of thread with profile projector, pitch measurement, 
measurement of thread diameter with standard wire, screw thread micrometer. 

a) Statistical Quality Control: Importance of statistical method in quality control, 
measuring   of   statistical   control   variables   and   attributes. 
Measurement/inspection, different types of control charts(X Bars, R, P. charts) 
and their constructions and their application. 
b) Acceptance Sampling: Sampling inspection and percentage inspection, basic 
concept of sampling inspection, operating characteristic curves, conflicting 
interests of consumer and producer, producer and consumers risks, AWQL, 
LTPD, ADGL, single and double sampling plans. 

1. INTRODUCTION TO OPERATION RESEARCH 
   Development of operations Research, characteristics and scope of operations Research, 
   Models in operations Research, Model Formulation, Types of mathematical models, 
   Limitations of operations Research. L.P. models, simplex method, the algebra of simplex 
   method. (Minimization and Minimization problem) method, post optimality analysis, 
   essence of duality theory, Application of sensitivity analysis. 
2. TRANSPORTATION AND ASSIGNMENT MODELS 
   Structure, industrial and business applications. 
   a. Transportation problems Use of various methods for solving transportation problems, 
   degeneracy and its solution. 
   b. Assignment problems: Solution of various types of problems, Traveling Salesman 
   problem. 
3. FUNDAMENTALS OF CPM / PERT NETWORKS 
   CPM – construction of networks, critical path, forward and backward pass, floats and 
   their significance, crashing for minimum duration, resource allocation and leveling. PERT – Time Estimates, Construction of Networks, Probability of completing projects by 
   given date. 
4.  
   a. Sequencing: Sequencing of n jobs and 2 and 3 machines, 2 jobs and m machines. 
   b. Replacement Analysis: With and without time value of money, single item and group 
   replacement. 
5. Inventory Models: Various costs involved, classification of models, EOQ model with and 
   without shortage, EOQ with uniform demand and production lot size model, EOQ model 
   with single price break. 
6. Decision Theory: Pay off and regret tables, decision rules, decisions under uncertainty and 
   risk, decision tree. 
   Network Techniques: Shortest Path Model- Systematic Method, Dijkstra‟s Algorithm, 
   Floyd‟s Algorithm