15ME61T: Estimation and Costing Mech Instrumentation 6th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Estimation and Costing detail DTE Kar Diploma syllabus for Mechanical Engineering (Instrumentation) (MI), C15 scheme is extracted from DTE Karnataka official website and presented for diploma students. The course code (15ME61T), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other mech instrumentation 6th sem syllabus for diploma c15 scheme dte karnataka you can visit Mech Instrumentation 6th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. The detail syllabus for estimation and costing is as follows.

Pre-requisites:

Knowledge of Mathematics, Work shop technology, Machine Tool Technology

Course Objectives:

This course will also help in developing the skills required in Estimate production/operation cost for budgeting and analysis.

Course Outcomes:

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UNIT I: INTRODUCTION TO ESTIMATION & COSTING 08 Hrs

Estimation – Definition, Importance and Aims- Qualities and functions of an EstimatorSource of errors in estimation- Constituents of Estimation- Costing – Definition and Aims -Difference between costing and estimating- – Depreciation and obsolescence: Definition, types, different methods of calculating depreciation- numeric examples.

UNIT II: ESTIMATION OF MATERIALS COST 10 Hrs

Material – Direct material, indirect material and examples- Calculation of Material cost -Labour – direct, indirect labour and examples – Calculation of labour cost – Expenses – direct, indirect expenses and examples- Classification of expenses – factory, administrative, selling and distribution expenses – Fixed and variable expenses – Components of cost – prime cost, factory cost, office cost, total cost – Block diagram to show the relationship between elements and components of cost -Determination of selling price – Break even analysis – break event
chart, diagram to illustrate break event point-Estimation of materials cost of step pulley, spindle lathe centre, Rivets, Fly wheel, Crankshaft, Chain link, Wedge and Gib-headed key.

UNIT III: ESTIMATION IN MACHINE SHOP 10 Hrs

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UNIT IV: ESTIMATION IN WELDING & SHEET METAL SHOP 09 Hrs

Estimation in welding shop – gas welding cost, arc welding cost – production cost of given welding job- the types of welding costs- the factors affecting the welding cost.

Estimation in sheet metal shop – Sheet material and gauge number, Sheet metal joints -Estimate the material required for preparation of container open on one side, Cylindrical drum, funnel and tray.

UNIT V: ESTIMATION IN FORGING SHOP & FOUNDARY SHOP 09 Hrs

Cost terminology associated with forging shop- The procedure for calculating material cost of a product for forging shop- Procedure for estimating forging cost- forging losses to be considered while estimating -Estimation of forging cost.

Estimation in foundry shop-pattern allowances- The procedure for calculating material cost of a product for foundry shop – Procedure for estimating cost of pattern making. -Procedure for estimating foundry cost of components such as C.I pulley and C.I. Wheel and estimate foundry cost.

UNIT VI: PROCESS COSTING & ACCOUNTING 06 Hrs

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Text Books:

1. Mechanical estimation and costing T.R.Banga and S.C.Sharma Khanna publishers
2. Mechanical Estimation Malhothra –
3. Industrial Organisation and Engineering Economics T.R.Banga and S.C.Sharma Khanna publishers
4. Mechanical Estimation NITTTR Chennai NITTTR Chennai
5. Mechanical costing and estimation. Singh and Khan Khanna Publishers
6. Process planning & cost estimation M.Adithan New age International

LIST OF SOFTWARES/ LEARNING WEBSITES:

1. http://calculatoredge.com/index.htm#mechanical

SPECIAL INSTRUCTIONAL STRATEGIES

1. Introduction to Estimation & costing Lectures, Discussions Presentations
2. Estimation of materials cost Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts
3. Estimation of Cost in machine shop Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts
4. Estimation of Cost in Welding & Sheet metal shop Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts
5. Estimation of Cost in Forging shop & Foundry Shop Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts
6. Process costing& budget Discussions, real life industries situation, industrial visits

Suggested List of Student Activities:

Note: the following activities or similar activities for assessing CIE (IA) for 5 marks (Any one)

• Each student should do any one of the following type activity or similar activity related to the course and before take up, get it approved from concerned Teacher and HOD.
• Each student should conduct different activity and no repeating should occur
1. Collect the finished parts from industries/market/scrap merchants Measure the dimensions and prepare production drawings of the parts using A4 size paper. Estimate the material cost
2. Welding estimation:
1. Determine raw material volume for all welded parts.
2. Select welding rod to be used. Estimate quantity of welding rod required.
3. Determine material and consumables costs.
4. For each part, estimate welding cost. Show the assumptions and steps followed to estimate welding cost.
5. Derive total cost of the part.
3. Casting estimation:
1. Determine raw material volume for all casted parts (Determine input weight, cut weight, net weight, losses etc).
2. Prepare pattern drawings (production drawings with all dimensions, surface finishes, allowances, etc) for all parts.
3. Estimate pattern cost.
4. Determine material and consumables costs.
5. For each part, estimate casting cost. Show the assumptions and steps followed to estimate casting cost.
6. Derive total cost of the part.
4. Forging estimation:
1. Determine raw material volume for all forged parts.
2. Prepare die drawings (production drawings with all dimensions, surface finishes, allowances, etc) for all parts.
3. Estimate dies cost.
4. Determine material and consumables costs.
5. For each part, estimate forging cost. Show the assumptions and steps followed to estimate forging cost.
6. Derive total cost of parts.
5. Machining estimation:
1. Determine raw material volume for all machined parts.
2. For each part, tabulate operation, cutting tool/s to be used and cutting parameters (speed, feed and depth of cut) to be used.
3. Estimate raw material cost.
4. For each part, estimate machining cost. Show the assumptions and steps followed to estimate machining cost.
5. Derive total cost of parts

Model Question Paper:

(CIE)

1. Define estimation. List the aims of estimating
2. Name the various components of cost. Give brief descriptions of the component.
3. A machine was purchased for Rs 30000/-. The cost of erection charges was Rs 10000/- , the estimated life of the machine was 20 years. The scrap value at the end of useful life was Rs 8000/-. Determine the rate of depreciation per year by straight line method. After 10 years the machine underwent major repairs and the repair cost was Rs 6000/- .What will be the new rate of depreciation per year.

Model Question Paper:

PART-A

1. Define estimation. Mention the aims of estimating
2. Explain the Straight line method of calculating depreciation
3. Name the various components of cost. Give brief descriptions of the component.
4. Distinguish between fixed and variable overhead
5. Define cutting speed, feed, depth of cut for lathe operations
6. Explain the Procedure of estimating cost of machined part for Lathe operations
7. Explain the various operation time to be considered for estimation of machining time.
8. Explain the types of sheet metal joints.
9. Explain the pattern allowances.

PART-B 7×10=70 marks

1. An industrial plant with initial value of Rs. 400000/- has a salvage value of Rs.50000/- at the end of 25 years, but sold for 260000/- at end of 10years. What is the profit or loss to the owner, if sinking fund method of depreciation is adopted? Take interest rate @ 8%.
2. A catalogue price of a machine is Rs 6000/- and the discount allowed to the distributors is 20% of the catalogue price. At some stage, it was found that the selling expenses were half the factory cost and material cost, labour cost and the factory overheads were in the ratio of 1:4:2 if the material cost was Rs 400/-. What profit was made by the factory on each machine
3. Determine the number of rivets of dimensions as shown in the figure. Which can be manufactured from 4 Kg of MS. Assume that there is no wastage of material density of MS is 8 gm/cc. All dimensions are in cm.
4. A tapered component is to be manufactured in a lathe by compound rest method out of a given bar of 60mm dia and 100 mm length. Assume the following data:

Details of tapered components Major dia =60mm

Minor dia =20mm

Length of taper =100 mm

Cutting speed 75 m/min. hand feed by compound rest =0.05 mm/rev depth of cut should not exceed 4 mm. Determine the time required for machining. All dimensions are in mm.

5. A 20 X 7.5 cm CI surface is to be faced on milling machine with a cutter having a diameter of 125 cm and 20 teeth. If the cutting speed and feed are 50m/min and 4.5 cm/min respectively, determine the milling time, rpm of the cutter and feed per tooth.
6. Estimate the time required for making an open tank of size 50x50x50 cm by gas welding. Size of sheet used is 50x50x0.3 cm welding is to be done on both sides. Assume fatigue allowance to be 10% and welding speed outside as 6m/hr and inside 5m/hr.
7. Two 1m long MS plates of 10mm thickness are to be welded by a lap joint with the help of a 6 mm electrode. Determine the cost of welding
1. Current used :250 amp
2. Voltage : 30 V
3. Welding speed : 10m/hr
4. Electrode used : 0.4 kg/m of welding
5. Labour charges Rs 1/ hr
6. Power charges Rs 0.20/KWh Cost of electrode Rs 5/kg
8. Estimate the size of stock and weight of material required to forge 100 MS bolts as shown in figure. The bar stock diameter is 3 cm.
9. Estimate the cost of 2000 CI pulleys as shown in figure. Its surfaces are to be machines after casting. The pattern is supplied by the customer itself. Following data can be used:

Cost of metal = Rs.5/kg

Moulds prepared by each worker/day=20

Melting charges = 20% of metal cost

Machining allowance on each side may be taken as 2mm

Wages of each moulder =Rs. 16/day

Density of CI = 7.2 gm/cc

Overhead charges = 25% of metal cost.

1. Explain the procedure for process costing
2. Compare manual tendering with e-tendering

For detail syllabus of all other subjects of BE Mech Instrumentation, C15 scheme do visit Mech Instrumentation 6th Sem syllabus for C15 scheme.

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