# Process Planning & Cost Estimation Important Questions – Unit – 2

## Process Planning & Cost Estimation Important Questions

Dear faculty/ students

Here We attached the Process Planning & Cost Estimation Important Questions for the unit  2, from Board Exam Question Bank

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Subject : Process Planning & Cost Estimation

UNIT – 2, Process Selection               Scheme : M

NOTE : 1. The highlighted Questions are asked more than two times in the Board Exam

1. These Questions are collected from Board Examination Question Papers.

2/3 marks Questions

1. What is process selection?
2. State the choice involved in process selection.
3. What is meant by machine capacity?
4. Explain the factors influencing choice of machinery.
5. Mention the factors affecting the process selection.
6. How will you determine the man power required?
7. Define the term selection of material.
8. Explain the method of determination of materials requirement with an example.

10 marks questions

1. Explain in detail the process and equipment selection.
2. A component can be produced either by an automatic lathe or three center lathes. Number of components made per year is 6,000 the cost data for the two machines are given below
 Automatic lathe Center lathe Initial investment Rs 2,00,000 Rs. 50,000 Useful life 8 years 10 years Motor power 15 HP 3 HP Labour charges Rs.20 per hour Rs. 30 per hour Time to produce 2000 pieces in each machines 3000 hrs 2900 hrs

For both machines

Interest = 18%

Cost of power = Rs. 1.50 per unit

Taxes and insurance = 8%

Maintenance – annual = 7.5 %

Depreciation = 1% per year

Labour Over head = 25 % on labour

Which machine will you select?

1. Construct suitable operation planning sheets for manufacture of spur gear having 24 teeth using a 2 module gear cutter. The spur gear is to be made for a total quantity of 1000 pieces. The material of the ear is medium carbon steel.
2. A component can be produced on either a turret lathe or an automatic lathe. The different cost factors for the two machines are given below

For turret lathe,

Fixed cost = Rs 400

Variable cost = Rs. 2 per piece

For Automatic lathe,

Fixed Cost = Rs. 1600

Variable cost = Rs. 0.50 per piece

Assume that the cycle time for production is same for both machines, which machine will you select for producing (i) 900 components (ii) 700 components. Also determine the break even quantity.

1. What is process selection? Explain the following in process selection

(i)   Technological choice

(ii) Specific component choice and

(iii)        Process flow choice

1. A semi automatic turret lathe costs Rs. 80,000 and it produces 16 pieces per hour and its operator receive Rs 2 per hour. An engine lathe which cost Rs. 32,000 10 Pieces Per hour and its operator receives Rs. 2.50 per hour. Calculate the minimum number of pieces which makes turret lathe more economical.
1. A component can be produced on either a capstan lathe or an automatic lathe the different cost factor for the two machines are given below
 For capstan lathe Rs. For Automatic Lathe Rs. Fixed Cost Rs. 400 Fixed Cost Rs. 1,600 Variable Cost Rs. 2 per piece Variable Cost Rs. 0.50 per piece

Assume that the cycle time for production of the component is same for both machines. Which machine will you select for producing (i) 900 components (ii) 700 components

What is the break even quantity?

1. How will you prepare an operation planning sheet for a given components.

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