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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – V • EXAMINATION – WINTER- 2016
Subject Code:3351905 Date: 01- 12- 2016
Subject Name: ESTIMATING, COSTING AND ENGINEERING CONTRACTING
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
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Q.1 Answer any seven out of ten. 14
1. State the quality of Estimator.
2. Define 1) Feed 2) Depth of cut 3) Batch Preparation Time 4) Approach.
3. List factors which are affecting welding cost.
4. State different types of sheet metal operations.
5. List different elements of Cost.
6. Define depreciation and obsolescence.
7. State the conditions of contract.
8. State six objective of budget.
9. List types of sheet metal joints.
10. Define 1) Salvage value 2) Cost Accounting 3) Non Productive cost 4) Book Value.
Q.2 (a) Define costing, State at least six advantages of costing. 03
OR
(a) List the modern tools and technique of cost reduction. 03
(b) Explain various elements of cost in case of Gas welding. 03
OR
(b) Explain the procedure for estimation of material cost in case of Gas welding. 03
(c) Market price of a pattern is Rs.300. Discount offered on market price is nil. Material cost, labour and overheads are in proportion of 1:2:3. If labour cost is Rs.60 per pattern then calculate the profit per pattern. 04
OR
(c) A lathe machine is purchased at a price of Rs.60,000 has its useful life of 15 years. Its scrap value is Rs.10,000. Calculate the depreciation per year by sinking fund method. Rate of interest for depreciation fund is 12 percent. 04
(d) Find out the Break-even point analytically(mathematically) from the following data:
i) Total Sales = Rs.70,000
ii) Variable cost = Rs.49,00,000
iii) Fixed cost = Rs.12,00,000
iv) No. of components = 35,000. 04
OR
(d) Explain the cost elements in Gas cutting. 04
Q.3 (a) Explain estimation of flash loss and sprue loss in forging. 03
OR
(a) Explain various forging operations. 03
(b) Explain various pattern allowances. 03
OR
(b) How to calculate turning time in machining shop? 03
(c) A square bar of 25mm sides is to be produced from a round bar of 25mm diameter and 500mm length. Considering only 5% scale loss, calculate the length of square bar produced. 04
OR
(c) Determine time required for preparing M.S. bolt M20 x 3 mm by single point cutting tool with a cutting speed 8m/min and length of threaded portion is 40mm. Consider No.of cuts required for threading is 8. 04
(d) Estimate the time required to drill 4 holes of 1 cm diameter in a plate. Hole depth is 2 cm, cutting speed is 15 m/min and feed is 0.01 cm/rev. 04
OR
(d) A slot of 2 cm deep and 10cm long is to be cut in a M.S. job with a miling cutter of 8 cm diameter & rotating at 120 rpm. If milling is done in 2 cut and feed per revolution is 0.05 cm., then calculate the milling time. 04
Q.4 (a) Explain cost estimation per pouch for pouch packaging. 03
OR
(a) List various cost elements of an ice plant. 03
(b) Write down Steps for cost estimation for producing power using diesel generating set. 04
OR
(b) A therm al power plant produces 80 Mw to satisfy maximum demand. Load factor of plant is 40%. Estimate power cost per unit for power produced by this plant. Operating cost Rs. 1.94/kwh. (Assume capital cost as Rs.1800 per kw and depreciation is 12%). 04
(c) The cost of active wheel washing powder packed in 1 kg. pouch is Rs.26. The 07 plastic material for pouch cost Rs.1 per pouch. An operator is packing 500 pouch in a shift of 8 hours. If operator is paid Rs.150 per 8 hours shift. Estimate pouch packaging cost assuming interest & depreciation. Power cost per pouch is Rs.0.15.
Q.5 (a) Explain sales budget. 04
(b) Explain full contract and schedule contract. 04
(c) List various types of tenders and explain any one. 03
(d) Write a short note on e-tendering. 03
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