Service time in queuing theory is usually assumed to follow
Normal distribution
Poissons distribution
Erlang distribution
Exponential law
Correct Answer :
D. Exponential law
Related Questions
Which of the following organisation is preferred in automobile industry?
Functional organisation
Line organisation
Staff organisation
Line and staff organisations
The type of organisation preferred for a steel industry, is
Line organisation
Functional organisation
Line and staff organisation
Line, staff and functional organisation
The bonus increases in proportion to the increase in efficiency. This statement applies to
Halsey plan
Gantt plan
Emerson's efficiency plan
Rowan plan
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
Abbreviated work factor data is applied for
Material handling operation
Maintenance operation
Packing and shipping operation
All of these
A feasible solution to the linear programming problem should
Satisfy the problem constraints
Optimise the objective function
Satisfy the problem constraints and non-negativity restrictions
Satisfy the non-negativity restrictions
Tick the odd man out
Taylor
Drucker
McGregor
Galileo
Standard time is defined as
Normal time + allowances
Normal time + idle time + allowances
Normal time + idle time
Only normal time for an operation
PERT is
An analytic tool in concept
Limit up of event oriented diagrams
Used for research and development projects
All of the above
In the Emerson efficiency plan, a worker receives only his daily wage and no bonus is paid till his efficiency reaches
50 %
66.67 %
75 %
80 %
Work study is most useful
Where production activities are involved
In judging the rating of machines
In improving industrial relations
In judging the output of a man and improving it
Work study is concerned with
Improving present method and finding standard time
Motivation of workers
Improving production capability
Improving production planning and control
An activity of the project is graphically represented by ________ on the network diagram.
A circle
A straight line
An arrow
None of these
The most important objective behind plant layout is
Overall simplification, safety of integration
Economy in space
Maximum travel time in plant
To provide conveniently located shops
CPM is the
Time oriented technique
Event oriented technique
Activity oriented technique
Target oriented technique
Choose the wrong statement Time study is used to
Determine overhead expenses
Provide a basis for setting piece prices or incentive wages
Determine standard costs
Determine the capability of an operator to handle the number of machines
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
What does symbol 'D' imply in work study?
Inspection
Transport
Delay/temporary storage
Permanent storage
Break-even analysis shows profit when
Sales revenue > total cost
Sales revenue = total cost
Sales revenue < total cost
Variable cost < fixed cost
O on a PERT/CPM chart represents
An ordinary event
A significant event representing some milestone
An event to be transferred to other network chart
Dangling event
Under the Apprenticeship Act
All industries have to necessarily train the apprentices
Industries have to train apprentices according to their requirement
All industries employing more than 100 workers have to recruit apprentices
Only industries employing more than 500 workers have to recruit apprentices
Which of the following type of layout is suitable for automobile manufacturing concern?
Product layout
Process layout
Fixed position layout
Combination layout
Dummy activities are used to
Determine the critical path
Determine the project completion time
Maintain the required net work
None of these
Micro-motion study involves following number of fundamental hand motions
8
12
16
20
The artificial activity, which indicates that an activity following it cannot be started unless, the preceding activity is complete, is known as
Event
Free float
Artificial
Dummy
Bin card is used in
Administrative wing
Workshop
Foundry shop
Stores
The linear programming techniques can be applied successfully to industries like
Iron and steel
Food processing
Oil and chemical
All of the above
Which of the following is independent of sales forecast?
Productivity
Inventory control
Production planning
Production control
Merit Rating is the method of determining worth of
A job
An individual employee
A particular division in workshop
Machine
PERT analysis is based upon
Optimistic time
Pessimistic time
Most likely time
All of these