Tuesday 11 April 2017

Engineering Economics 2 marks with answers PDF

MG6863 Engineering Economics

Unit 2 Value Engineering

Part-A
1.   Define value engineering.
It is defined as the systematic application of recognised techniques which identify the function a product or service, establish a monetary value for the function and provide the necessary function reliability at the lowest overall cost.
Value = Function or Utility/Cost

2.     What are the main objectives of value engineering?
(i)                Simplify the product
(ii)              Reduce cost of the product
(iii)            Modify and improve product design as to make it acceptable to consumer
(iv)            Improve organizational efficiency
(v)              Ensure greater return of investment

3.     What do you understand make or buy decisions?
It is a determination whether to produce a component part internally or to buy it from an outside supplier.

The organization should evaluate the costs and benefits of a manufacturing a product against purchasing it and then select the alternative which results in the lower cost.

4.     Explain time value of money.
The economic value of sum depends on when it is received. Because money has earning power over time (it can be put to work, earning more money for its owner), a rupee received today has a greater value than a rupee received at some future time.

5.     What is meant by effective interest rate?
It is a percentage which is periodically applied to measure the cost of money when the interest rates compounded for less than a year. i.e,monthly, quarterly and half yearly.
It is given by
R= (1+i/C) c-1

Where          

i=the nominal interest rate
C=the number of interest periods in a year

6.     What is uniform gradient conversion?
The future sum of annual equal payments at the end of the every year for N years is equal to the total amount of gradient series at the end of N years.

7.     What is meant by capital recovery factor?
To find the annual equivalent amount and this is to be paid by the company at the end of every interest period.
            A= P( i(1+i)N/(1+i)N-1)=P(A/P,i,N)

8.     What is compound amount factor?
The factor (i+i)N is known as compound amount factor. Like the concept of equivalence. By using this factor, all other important interest formulas can be derived which is designated (F/P,i,N).

9.     What is present worth factor?
The factor 1/(1+i)N is known as present worth factor and is designated (P/F,i,N). It is also referred as the discounting factor.

10.   What is sinking fund factor?
The factor i/((1+i)N-1) is called the equal payment series sinking fund factor and is referred by the notation (A/F,i,N).

A sinking fund is an interest-bearing account into which a fixed sum is deposited each interest period and it is commonly established for the purpose of replacing fixed assets.

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