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ASSIGNMENT-II(For the students who will not appear for the 2ndInternal Examination on the account of

joining in the job)

B. Tech (Chemical Engineering)

Semester: 8th

Subect: !r"ect Management

!a#er C"$e: %&8'B

Anser the *"ll"ing +uesti"ns:

.)Following are the details of two new machines:

!articulars Machine A Machine B

Cost of the Machine Rs. 100000 Rs. 150000

Installation costs Rs. 20000 Rs. 25000

Salvage value Rs. 10000 Rs. 15000

!ife of the machine 5 "ears 5 "ears

Machine hours #er "ear 2000 hrs. 2000 hrs.

$ut#ut #er hour 10 units 15 units

Selling #rice #er unit Rs. 10 Rs. 10

Material cost #er unit Rs. % Rs. %

&ages #er machine hour Rs. %0 Rs. %0

'ower charges #er machine hour Rs. 2 Rs. 2

Re#airs ( Maintenance #er "ear Rs. 10000 Rs. 12000

Su#ervision charges #er "ear Rs. 12000 Rs. 20000

$ther e)#enses Rs. 20000 Rs. *0000

&or+ing ca#ital Rs. 25000 Rs. %0000

Rate of ta) , 50- , 50-

Calculate the verage Rate of Return of two machines ta+ing average investment as /ase and

using the following methods:i nnual average income after ta) and de#reciation.

ii nnual average income after ta) #lus de#reciation and

dvice the management the #rofita/le machine.

,.)he following ta/le shows the activities their immediate #redecessors and time estimates ofthe #ro3ect.

ctivit" 4 C 6 F 7 8 I

Immediate'redecessor

9 9 4 C 6 C 6 F 7

$#timistic ime toda"s

* 2 1 2 12 10 1

Most !i+el" ime tm

da"s*.5 ; 2 2.5 ; 1 < 12 1.5

'essimistic ime t#

da"s 1= * 20 20 15 1 2

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i Calculate the e)#ected time and variance of each activit" of the #ro3ect.ii raw the networ+ diagram find the critical #ath and calculate the e)#ected duration of

the #ro3ect.

iii ssuming that the #ro3ect com#letion time follows normal distri/ution. calculate the#ro/a/ilit" of com#leting the #ro3ect in a 50 da"s and / *2 da"s

7iven the ta/le value of >

> 0.