15HP63A: Engineering Economics Mechanical HPT 6th Sem Syllabus for Diploma DTE Karnataka C15 Scheme

Engineering Economics detail syllabus for Mechanical Engineering (Heat Power Technology) (71), C15 scheme is taken from DTE Karnataka official website and presented for diploma students. The course code (15HP63A), 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.

For all other mechanical hpt 6th sem syllabus for diploma c15 scheme dte karnataka you can visit Mechanical HPT 6th Sem Syllabus for Diploma C15 Scheme DTE Karnataka Subjects. For all other ELECTIVE-2 subjects do refer to ELECTIVE-2. The detail syllabus for engineering economics is as follows.

Pre-requisites:

Knowledge of Mathematics, Work shop technology, mensturation.

Course Objectives:

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

Course Outcomes:

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UNIT I: TECHNICAL TERMS & DEFINITIONS 06Hrs

Technical Terms: Administration, Management, Organization, Bonus, capital, Direct Labour. .etc., Definition of estimating, Importance of estimating, Aims of estimating, Functions of estimation department, Qualities of estimator, Functions of estimator, Estimating procedure, Sources of errors, Constituents of estimation, Definition of Costing, Aims of costing, Procedure for costing, costing methods, Advantages of costing, Classification of costing, Difference between Estimating & Costing.

UNIT II: Elements of Costs 08Hrs

Definition of elements of costs-Material, Labour & Expenses, Components of cost, verheads-Fixed & Variable overheads, Allocation of On-costs, Simple problems to find the selling price of a product & allocation on-costs.

UNIT III: Depreciation &Obsolescence, Wages& Incentives 09Hrs

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UNIT IV Menstruation &Estimation of Material cost 09hrs

Areas of Plane figures, Areas of Irregular figures, Surface areas & Volumes of Solids, Position of centroid, Procedure for calculating the material cost, Simple problems on material cost.

UNIT V Estimation of Machine shop 10hrs

Definition of cutting speed, Feed & Depth of cut, Estimation of time on different operations such as Turning, Knurling, Facing, Drilling, Boring, Reaming, Threading, Tapping, Milling, Grinding, Shaping & Planning.

UNIT VI Estimation in Sheet Metal shop& welding shop 10hrs

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Text Books:

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

SPECIAL INSTRUCTIONAL STRATEGIES

1. Introduction to Estimation & costing Lectures, Discussions Presentations
2. Elements of costing Demonstration of method to estimate different types of cost taking live demonstration at work shop place, steps based handouts
3. Depreciation And Obsolescence Demonstration of method to Depreciation And Obsolescence taking live demonstration at work shop and lab machines
4. Estimation of materials cost Demonstration of method to estimate material cost taking live demonstration at work shop place, steps based handouts
5. Estimation of Cost in machine shop Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts
6. Estimation of Cost in Welding & Sheet metal shop Demonstration of method to estimate cost taking live demonstration at work shop place, steps based handouts

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 (calculate 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. 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. Mention the aims of estimating
2. Name the various components of cost. Give brief descriptions of the component
3. What is the profit or loss to the owner, if sinking fund method of depreciation is adopted? Take interest rate @ 8%.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.

Model Question Paper:

PART-A 6×5=30 marks

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. What is the profit or loss to the owner, if sinking fund method of depreciation is adopted? Take interest rate @ 8%.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.
2. What profit was made by the factory on each machine? A catalogue price of a machine is Rs 6000/- and the discount allowed to the distributors is20% 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 of1:4:2 if the material cost was Rs 400/-.
3. Find 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 is8 gm/cc. All dimensions are in cm.
4. Evaluate the time required for machining. All dimensions are in mm. 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.

5. Determine the milling time, rpm of the cutter and feed per tooth. 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,
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. Determine the cost of welding Two 1m long MS plates of 10mm thickness are to be welded by a lap joint with the help of a6 mm electrode.
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. Find 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 depreciation methods.
2. Explain different type’s wages.

For detail syllabus of all other subjects of BE Mechanical Hpt, C15 regulation do visit Mechanical Hpt 6 syllabus for C15 Regulation.

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