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
Correct Answer :
C. (a + 4m + b)/6
Related Questions
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
Various activities of a project, are shown on bar charts by
Vertical lines
Horizontal lines
Dots
Crosses
The time with which direct cost does not reduce with the increase in time is known as
Crash time
Normal time
Optimistic time
Standard time
PERT technique of network analysis is mainly useful for
Small projects
Large and complex projects
Research and development projects
Deterministic activities
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
The part of a derrick crane include (i) Mast (ii) Boom (iii) Bull wheel (iv) Jack Of these statements
(i), (ii) and (iv) are correct
(ii), (iii) and (iv) are correct
(i), (iii) and (iv) are correct
(i), (ii) and (iii) are correct
A four wheel truck or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be
20 kg/tonne
30 kg/tonne
40 kg/tonne
50 kg/tonne
Consider the following statements: In the critical path method of construction planning, Free Float can be.
1. Greater than Total Float.
2. Greater than Independent Float
3. Equal to Total Float.
4. Less than Independent Float. Of these statements
1 and 4 are correct
2 and 3 are correct
1 and 4 are correct
1 and 2 are correct
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
Which one of the following represents an event?
Concrete cured
Fixing of door
Plastering of walls
Selecting sites
Pick up the correct statement from the following:
Optimistic time estimate refers to activities
Pessimistic time estimate refers to activities
Most likely time estimate refers to activities
All the above
For which of the following materials, the output of power shovels for a fixed shovel size will be maximum
Moist loam
Good common earth
Well blasted rock
Wet sticky clay
Earliest finish of an activity is always
Greater than earliest event time of the following node
Less than earliest event time of the following node
Less than or equal to earliest event time of the following node
Greater than or equal to earliest event time of the following node
A contractor has two options;
(I): Invest his money in project A or
(II): Invest his money in project B.
If he decides to invest in A, for every rupee invested, he is assured of doubling his money in ten years. If he decides to invest in B, he is assured of making his money 1.5 times in 5 years. If the contractor values his money at 10% interest rate, he
Should invest in neither of the two projects
Could invest in either of the two projects
Should invest in project A
Should invest in project B
Which of the following does not represent an activity?
Site located
Foundation is being dug
The office area is being cleaned
The invitations are being sent
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
In time-cost optimization of a project, crashing is done.
On all the activities
On all the activities lying on the critical path
Only on activities lying on the original critical path and having flatter cost slopes
On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope
Mile Stone charts were invented in the year of
1910
1920
1930
1940
Batching refers to
Controlling the total quantity at each batch
Weighing accurately, the quantity of each material for a job before mixing
Controlling the quantity of each material into each batch
Adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch
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.
Grader is used mainly for
Trimming and finishing
Shaping and trimming
Finishing and shaping
Finishing, shaping and trimming
Interfering float is the difference between
Total float and free float
Total float and independent float
Free float and independent float
None of the above
Preliminary project report for a road project must contain
The detailed estimated cost based on detailed design
The several alternatives of the project that have been considered
The soil survey, traffic survey, concept design and approximate cost
The contract documents for inviting tenders
Time and progress chart of a construction, is also known as
Bar chart
Gantt chart
Modified Mile stone chart
All the above
Critical path lies along the activities having total float
Positive
Negative
Zero
Same
A Milestone chart
Shows the interdependencies of various jobs
Depicts the delay of jobs, if any
Points outgoing ahead of schedule of jobs, if any
None of these
Select the incorrect statement.
Earliest start of an activity is the early event time of the node it leaves.
Latest finish of an activity is the late event time of the node it enters.
Latest start of an activity is its latest finish minus its duration.
None of the above
Construction team means
An engineer
An architect
An owner
All the above
CPM is
Synthesising in concepts
Is built of activities oriented programme
Is based on time estimate
All the above
Which of the following earth moving machines has the shortest cycle time?
Drag line
Hoe
Clam shell
Dipper shovel