DHANALAKSHMI SRINIVSAN ENGINEERING COLLEGE
PERAMBALUR - 621212
DEPARTMENT OF MECHANICAL ENGINEERING
QUESTION BANK
PROCESS PLANNING AND COST ESTIMATION
UNIT - I
PART - A
1. What is workstudy ?
2. Differentiate Method study & work measurement ?
3. What is meant by work measurement ?
4. List out the method study procedure ?
5. List out the method study symbols with its name ?
6. What is process chart and its types ?
7. What is multiple activity chart ?
8. Why we use the string diagram ?
9. What is travel chart how it is differ from others ?
10. Whats the difference between cycle graph and chronocycle graph?
11. Write the principles of motion Economy ?
12. Give the short notes on stopwatch time sudy ?
13. Whats the use of time study board ?
14. Define the term Ergonomics ?
15. What are the types of allowance ?
PART - B
11. Explain the objectives, purpose and scope of work study ?
12. State and explain in brief the steps involved in conducting the work study ?
13. Explain the significance,construction and application of the following recording techniques ?
( i ) Out line process chart, ( ii )Flow process chart, ( iii ) Two handed process chart
( iv ) Multiple activity process chart
14. Explain the various techniques of work measurement?
15. Explain the stop watch time study ?
16. Explain the Diagram used in recording techniques ?
17 . The observed time and the rating factor for five elements of job is given below
ELEMENTS
OBSERVED TIME
(min)
RATING FACTOR
1
0.3
100%
2
0.6
90%
3
2.2
80%
4
1.5
100%
5
1.4
70%
Fatigue,Personal,and contigency allowance are 5%,10%,5% respectively calculate standard time for job ?
UNIT - II
PART - A
1. What is meant by Process planning ?
2. List out the steps of Process planning activities ?
3. What are the approaches of process planning ?
4. Give short notes about CAPP ?
5. List the components of generative CAPP?
6. List the information required for process planning ?
7. What are factors influence for process planning ?
8. What are expert system shells?
9. What is meant by Machining time ?
10. Whats the formula used for length of cut ?
11. Define the term feed and depth of cut ?
12. Give the short notes on cutting speed ?
PART - B
11 .
A mild steel bar 120mm long and 40 mm in diameter is turned to 38 mm diameter and was again
turned
to a diameter of 35 mm over a length of 50 mm as shown in figure. The bar was chamfered at both the
ends to give a chamfer of 450 x 4 mm after facing. Calculate the machining time. Assume cutting
speed
of 5 m/min and fees 0.3 mm/rev. the depth of cut is not exceed 3 mm in any operation.
12 .
Calcute the machinig time for the manufacture of pins shown in figure assume the following.
cutting speed for turning
= 22 m/min
feed rate for turning
= 0.8 mm/rev
depth of cut not exceed
= 3 mm
cutting speed for threading = 6 m/min
13. Explain the technological frame work of process planning by using diagram ?
14 . Explain in details the process planning activities ?
15 . Explain the two approaches commonly used in CAPP systems bringing out their advantages
and limitations ?
UNIT - III
PART - A
1 . Write the definition of Cost estimation ?
2 . Describe the objectives of Cost estimation ?
3 . What is preliminary Cost estimate?
4 . What is final Cost estimate?
5 . Write the definition of Cost accounting ?
6 . Differentiate the Cost estimation and Costing ?
7 . Write the importance of Costing ?
8. List the all components of costing ?
9. List the elements of cost ?
10.List the function of Estimating?
PART - B
11 .Explain the type of Cost estimates that are used ?
12 .Explain the various methods of Costing ?
13 .Explain the objectives and importance of Costing ?
14 .Explain the Cost accounting procedure ?
15 .How to estimate the Total cost and explain the elements for that ?
16 .What is overhead expenses and explain with detailly?
17 .Describe the block diagram how the selling price of a product derived?
18 .Draw a block diagram and explain with detailly from work study to Costing ?
19 .Draw a Ladder diagram and explain about various cost ?
20 .How to conduct Costing in one components explain with step by step ?
UNIT - IV
PART - A
1 . What are the methods of Cost estimating ?
2 . Write the components of a job estimates ?
3 . What are the types of allowances?
4 . What are the datas required for estimation list any five?
5 . What is the purpose of Cost estimation?
6 . What do you mean by a realistic estimate?
7 . List the function of Estimating?
PART - B
8 .Explain the type of Cost estimation ?
9 .Describe the various constituents of estimation ?
10 .Explain the procedure followed for estimating the cost of an industrail product ?
11 .Differentiate Cost Estimation and Costing ?
12 .Explain the Cost Estimation procedure ?
13 Prepare the Cost Estimation form for any one component ?
UNIT - V
PART - A
1 .Whats the formula for estimate the material cost ?
2 .Whats the formula for estimate the Labour cost ?
3. Whats the formula to calculate the area of following geomentrical shapes?
(i ) Square (ii) Equilateral triangle (iii) Hexagon
4. The length of one edge of a C.I cube is 25 cm.calculate its weight,if the density of material is 7.2
gm/cc?
5. What is indirect material ?
6. Give short notes about tear down time?
7. Why we considered for special allowance ?
8. The production cost equal to
?
9. What are the various time allowances which should be considered for calculating labour cost ?
10. how will you estimate direct labour cost for mass production of an item ?
11. What do you understand by allocation of overhead expenses ?
12. Write short notes on :
(i) Allocation by percentage on direct labour cost
(ii) Allocation by percentage on direct material cost
13. What is meant by machine hour for allocation of total expenses?
14. When do you prefer allocation of overhead expenses by unit rate method?
PART - B
15. The direct material used is Rs 1000 and direct wages of Rs 443 for the manufature of certain items.
Calculate the factory on cost
(i) when the on cost is to be 60% of prime cost and
(ii) when the on cost is to be 60% of direct produtive labour cost ?
16.A certain piece of work is produced by a firm in batches of 100. The direct material cost for that 100
pcs
work is Rs.160 and the direct labour cost is Rs.200.Factory on cost is 35% of the material and labour
cost. Overhead charges are 20% of the factory cost. Calculate the prime cost and factory cost.if the
management wants to make a profit of 10% on the gross cost,determine the selling price/article ?
17 .
Determine the weight of 15 mild steel spindles, the shapes and size of which are given in figure also
calculate the weight of scrap, if they are turned out from a mild steel rod of 25 mm dia and facing and
parting off allowances can be taken as 1.5 mm and 5 mm respectively assume that 20 mm length of
rod is required for grip in the chuck. Take density of M.S as 7.8gm/cc
18 .
Calculate the weight of material for producing 250 pcs of thread gauge as shown in figure. The
thickness
of the sheet is 6 mm which is of alloy steel. Calculate the cost of material if the density of metal as
7.87 gm/cc and its cost as RS.20 / Kg
19 .
Estimate the size of the stock to forge a M.S hexagonal headed bolt blank. The diameter of the
bolt is 25 mm, and length of stem 100 mm.assume necessary dimensions for the head.
20. How to estimate the welding material cost write step by step procedure?