In PERT analysis, the time estimates of activities and probability of their occurrence follow
Normal distribution curve
Poisson's distribution curve
Beta distribution curve
None of the above
Correct Answer :
C. Beta distribution curve
Related Questions
Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?
Concrete
Loose sand
Asphalt
Firm earth
Final technical authority of a project lies with
Assistant Engineer
Executive Engineer
Superintending Engineer
Chief Engineer
The most suitable type of equipment for compaction of cohesive soils is
Smooth-wheeled rollers
Vibratory rollers
Sheep foot rollers
Tampers
An earth moving equipment costs Rs. 5,00,000 and has an estimated life of 10 years and a salvage value of Rs. 50,000. What uniform annual amount must be set aside at the end of each of the 10 years for replacement if the interest rate is 8% per annum and if the sinking fund factor at 8% per annum interest rate for 10 years is 0.069?
Rs. 31050
Rs. 34500
Rs. 37950
Rs. 50000
The difference between the time avail-to do a job and the time required to do the job, is known as
Event
Float
Duration
Constraint
While filling the tender for any work, the contractor considers
Site survey
Availability of construction materials
Availability of labour
All the above
Sensitivity analysis is a study of
Comparison of profit and loss
Comparison of assets and liabilities
Change in output due to change in input
Economics of cost and benefits of the project
Which of the following excavators is most suitable for digging under water?
Drag line
Hoe
Clam shell
Dipper shovel
The process of incorporating changes and rescheduling or replanning is called
Resource levelling
Resource smoothening
Updating
Critical path scheduling
Pick up the correct statement from the following:
The float may be positive, zero or negative
If the float is positive and the activity is delayed by a period equal to its total float, the completion of project is not delayed
If the float of an activity is negative, delay in its performance is bound to delay the completion of project
All the above
If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is
500 cum
1000 cum
1500 cum
2000 cum
The Overall in-charge of an organisation at the site responsible for the execution of the works, is
Executive Engineer
Engineer
Junior Engineer
Assistant Engineer
The final selection of a construction site, is done by
Departmental representative or user
Local civil authority representative
Representative of engineer authority
All the above
Pick up the PERT event from the following:
Digging of foundation started
Digging of foundation completed
Laying of concrete started
All the above
A critical ratio scheduling
Determines the status of each activity
Adjusts automatically changes in activity progress
Is a dynamic system
None of these
The grade resistance factor for an earth moving machine can be obtained by multiplying grade percentage by a factor approximately equal to
2 kg/tonne
6 kg/tonne
9 kg/tonne
20 kg/tonne
Select the incorrect statement.
A critical path always begins at the very first event.
A critical path always terminates at the last event.
Critical activities control the project duration.
Critical activity is the one for which free float is zero.
Critical path lies along the activities having total float
Positive
Negative
Zero
Same
The first method invented for planning projects, was
Bar chart method
Milestone chart
Critical path method (CPM)
Programme Evaluation and Review Technique (PERT)
Critical path method
Is an improvement upon bar chart method
Provides a realistic approach to daily problems
Avoids delays which are very common in bar charts
All the above
In PERT analysis, the time estimates of activities and probability of their occurrence follow
Normal distribution curve
Poisson's distribution curve
Beta distribution curve
None of the above
Optimistic time, most likely time and pessimistic times for the activities of a network in the given figure are written above their arrows. If the contractual obligation time for the project is 75, the latest occurrence time for the event 2, is
20
25
35
15
If a is the optimistic time, b is the pessimistic time and m is most likely time of an activity, the expected time of the activity, is
(a + m + b)/6
(a + 2m + b)/6
(a + 4m + b)/6
(a + 5m + b)/6
Bar charts are suitable for
Minor works
Major works
Large projects
All the Above
Rolling resistance of a wheel depends upon (i) Vehicle load (ii) Grade (iii) Ground conditions Of these statements
Only (i) is correct
(i) and (ii) are correct
(i) and (iii) are correct
(ii) and (iii) are correct
Works costing less than Rs. 20,000 are treated as
Any project
Major projects
Minor projects
All the above
The salient feature of functional organisation is
Strict adherence to specifications
Separation of planning and design part
Each individual maintains functional efficiency
All the above
Time and progress chart of a construction, is also known as
Bar chart
Gantt chart
Modified Mile stone chart
All the above
Consider the following activities in a building construction:
1. Concreting of roof slabs
2. Brick-jelly lime concrete terracing
3. Erection of form work for slab
4. Construction of parapet wall in terrace
The correct sequence of these activities is
1, 3, 2, 4
3, 1, 4, 2
3, 1, 2, 4
1, 3, 4, 2
Pick up the correct statement from the following:
Programme Evaluation and Review Technique, is event oriented
Programme Evaluation and Review Technique is not event oriented
Critical Path Method is event oriented
Critical Path method is event oriented