ESTIMATION AND COSTING MODEL QUESTION PAPER




COURTLY: DTE BOARD


DERARTMENT OF TECHNICAL EDUCATION
DIPLOMA COURSE IN MECHANICAL ENGINEERING
SIXTH SEMESTER
                                                        MODEL QUESTION PAPER
ESTIMATION AND COSTING
Time: 3Hrs                                                                                                         Max marks: 100 
          Note:1.Section-I is compulsory                                                                                 
          2. Answer any six full questions from Section -II, Section-III,
             and Section-IV. Choosing at least TWO from each section
SECTION I
1 a)    Fill in the blanks with appropriate words: -                                                                 1X5
       i) The expenditure which cannot be charged to particular product during production is known as _____________
      ii) The lubricating waste and the coolant used during production are ________ materials
     iii) Reduction in the value and efficiency of a machine or asset is known as ____________
      iv) The time counted from when the last element of operation has been completed is known                                                                                                     as ______________
      v) The capital which is required to meet the day to day needs _______________                   
    b)   Write a note on pattern allowances                                                                             5
                                                                                                                                                                                                               SECTION II

 2 a)     Explain avoidable and unavoidable errors with example                                            5         
  b)     Define standard cost and mention the advantages of standard cost                            5       
    c)     State the advantages of efficient costing                                                                   5

3 a)      Draw the Block diagram to show the relationship between elements and
 Components of cost                                                                                                    5
    b)   A small firm is producing 100 pens per day. The direct material cost is found to be
          Rs 160, direct labour cost is Rs 200 and factory overheads are Rs 250. If the selling                                                                      on cost is 40% of the factory cost, what must be the selling price of each pen                                 to realise a profit of 14.6% of the selling price?                                                       10         
   
 4 a)     State the causes for depreciation                                                                                 5
   b)    An industrial plant with an initial value of Rs 2, 00,000 and salvage value of
          Rs 20,000 at the end of 20 years were sold for Rs 1, 45,000 at the 10 years.
          What is the profit or loss, if sinking fund depreciation at 8% compounded
          annually was adopted?                                                                                               10
 
         
SECTION III
 5   a)   Mention the procedure for estimation of material cost.                                             5          
    b)   Find out the weight of the 10 mild steel spindles as per the dimensions given
          in figure. Calculate the weight of scrap with their turned out from a mild steel
          rod of 25 mm diameter and facing and parting off allowances can be taken
          as 1 mm and 5 mm respectively. Assume that 15 mm length of rod is required
          for grip in the chuck. Density of m s is 7.8 gm/cc.                                                  10


6 a) Define cutting speed and depth of cut                                                                        5
   b) Find the time required to turn a 60 mm dia rod to the dimensions shown
        in the fig. Take cutting speed as 20m/min feed 1.2 mm .All cuts are 3mm deep   10






                                                     
                                                                                                                                               




7 a)    Explain any two sheet metal joints with simple sketches.                                           5
    b)   A container open on one side of size 0.5X0.5x1m height is to be made from
          plates of 6 mm thickness. Take density of plate metal as 8 gm/cc and joints are
          to be welded. Estimate the cost of the container from the following data.                                
           Cost of the plate = 30/kg
             Sheet metal scrap = 5% of material
           Cost of labour = 25% of material cost
             Cost of welding material = Rs 20 / metre of weld                                              10
                

SECTION IV

8 a)      Define working capital and mention the factors affecting working capital                5         
   b)      Find the cost of 2000 C I  pulleys as shown in the fig. Its surfaces are to be
            machined after casting. The pattern is supplied by the customer. Following data
            is to be used    .                      
          Cost of metal = Rs 20/kg
           Moulds prepared by each worker = 20
           Melting charges = 20% of metal cost
           Machining allowance on each side = 2 mm                                                                            Wages of each moulder = Rs 160 / day
            Density of cast iron = 7.2 gm/cc                                                   
           Overhead charges = 25% of metal cost                                                                       10
9 a)   Define wages and mention the types of wages.                                                                      5                                                                                                                                                           
   b)   Define incentives and explain different types of incentives with examples                    5
   c)   Mention the characteristics of a good wage and incentive system.                                5


10 a) Mention the steps involved in project planning                                                                     5
     b)  Draw a diagram to illustrate the breakeven point                                                                 5
     c)  Fixed costs in a factory is Rs 10000/ year and variable costs are Rs 2.00/ unit
          and selling price is Rs 6.00 / unit. Calculate the BEP                                                          5



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