A PERT network has three activities on critical path with mean time 3, 8 and 6 and standard deviations 1, 2 and 2 respectively. The probability that the project will be completed in 20 days is
0.50
0.66
0.84
0.95
Correct Answer :
C. 0.84
Related Questions
The linear programming techniques can be applied successfully to industries like
Iron and steel
Food processing
Oil and chemical
All of the above
For material transportation, conveyors are used when the prevailing conditions include
Loads are uniform
Routes do not vary
Materials move relatively continuously
All of these
Choose the wrong statement. Motion study is used for
Improving a work method
Improvising a work method
Designing a work method
Reducing inventory costs
PERT is applied for
Marketing programmes and advertising programmes
Installation of machinery
Research and development of products
All of these
Dispatching
Prescribes the sequence of operations to be followed
Determines the programme for the operations
Is concerned with the starting of processes
Regulates the progress of job through various processes
Queuing theory is associated with
Sales
Inspection time
Waiting time
Production time
Product layout is employed for
Batch production
Continuous production
Effective utilization of machine
All of the above
The assumption in PERT is
A project will always be behind schedule, if left uncorrected
Cost of project will always be more than the estimated cost, if no timely corrections are taken
A project can be subdivided into a set of predictable, independent activities
Activities are fixed and can't be changed
PERT has following time estimate
One time estimate
Two time estimate
Three time estimate
Four time estimate
Which of the following are the principles of material handling?
Keep all the handling to the minimum
Select only efficient handling equipment
Move the heaviest weight to the least distance
All of the above
The simplex method is the basic method for
Value analysis
Operation research
Linear programming
Model analysis
Routing
Prescribes the sequence of operations to be followed
Determines the programme for the operations
Is concerned with starting of processes
Regulates the progress of job through various processes
Standing orders which are statutory are applicable to
All industries
All process industries and thermal power plants
Only major industries
All industries employing more than 100 workers
CPM stands for
Combined Process Method
Critical Path Method
Common Planning Method
Critical Process Method
Time study is used to
Determine standard costs
Determine the number of machines a person may run
Provide a basis for setting piece price or incentive wages
All of the above
In Emerson's efficiency plan of wage incentive system, bonus is paid to a worker
Whose output exceeds 67% efficiency
On the percentage of time saved
On the percentage of time worked
On the percentage of standard time
If A is the total items consumed per year, P is the procurement cost per order, and C is the annual inventory carrying cost per item, then the most economic ordering quantity is given by
AP/C
2AP/C
√(AP/C)
(AP/C)2
Current assets include
Manufacturing plant
Manufacturing plant and equipment
Inventories
Common stock held by the firm
Basic motion time study gives times for basic motions in ten thousandths of
Second
Minute
Hour
Day
The time which results in the least possible direct cost of an activity is known as
Normal time
Slow time
Crash time
Standard time
A systematic job improvement sequence will consist of
Motion study
Time study
Job enrichment
All of these
Critical Path Net Work helps an engineer
To concentrate his attention on critical activities
To divert the resources from noncritical advanced activities to critical activities
To be cautious for avoiding any delay in the critical activities to avoid delay of the whole project
All of the above
Routing prescribes the
Flow of material in the plant
Proper utilization of man power
Proper utilization of machines
Inspection of final product
Which of the following statement is correct about the network diagram?
The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.
The tail end of the arrow represents the start of an activity.
The head of the arrow represents the end of an activity.
All of the above
The difference between the time available to do the job and the time required to do the job, is known as
Event
Float
Duration
Constraint
In Lincoln plan (one type of group incentive plan), the amount of the profit which an employee receives in addition to the guaranteed basic pay/wages, is based on:
A standard rating system
A merit rating system
A job evaluation system
His individual performance
Fixed position layout is also known as
Analytical layout
Synthetic layout
Static product layout
None of these
In steel plant the most important system for materials handling is
Conveyors
Cranes and hoists
Trucks
Locos
Standard time is equal to
(Normal time) - (allowances)
(Normal time) + (allowances)
Representative time multiplied by rating factor
Normal time taken by an operation
Merit rating is the method of determining the
Relative values of a job
Workers performance on a job
Worth of a machine
Value of overall production