If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be
2.3% and 84.1%
97.7% and 84.1%
97.7 % and 15.9%
15.9% and 97.7%
Correct Answer :
A. 2.3% and 84.1%
Related Questions
Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?
Concrete
Loose sand
Asphalt
Firm earth
The main disadvantage of line organisation, is
Rigid structure
Extraordinary delay in communications
Top level executions over work
All the above
Pick up the correct statement from the following:
Forward pass is used for calculating earliest expected time
Backward pass is used for calculating the latest occurrence time
Maximum value of earliest expected time is used if there is more than one value of any event
All the above
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.
Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?
Ice
Concrete
Loose sand
Earth
The most popular type of organisation used for Civil Engineering Constructions, is
Line organisation
Line and staff organisation
Functional organisation
Effective organisation
Construction team means
An engineer
An architect
An owner
All the above
Pick up the correct statement from the following:
CPM analysis is activity oriented
PERT analysis is event oriented
In CPM, the time is related to cost
All the above
Frequency distribution curves
Having a single lump, are called uninodal curves
If symmetrical, are called normal curves
If not symmetrical, are called skew curves
All the above
If the gross vehicle weight of a truck is 30 tonne and rolling resistance is 30 kg/tonne, then the tractive effort required to keep the truck moving at a uniform speed is
30 kg
300 kg
900 kg
1000 kg
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
Dummy
Constraint
The time by which a particular activity can be delayed without affecting the preceding and succeeding activities is known as
Total float
Free float
Interfering float
Independent float
Pick up the incorrect statement from the following:
An activity of a project is denoted by an arrow on the net work
The tail of the arrow indicates the start of the activity
The head of the arrow indicates the end of the activity
The arrows are drawn to scale from left to right
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
The process of incorporating changes and rescheduling or replanning is called
Resource levelling
Resource smoothening
Updating
Critical path scheduling
The estimated time required to perform an activity, is known as
Event
Dummy
Duration
Float
Which of the following is a weakness of bar chart?
Interdependencies of activities
Project progress
Uncertainties
All of the above
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
Pick up the incorrect statement from the following:
The various functions under each activity, are shown by one bar on Bar Charts
Bar chart establishes the interdependency of one event on another
Only approximate percentage of the completed work is reported
None of these
Critical path lies along the activities having total float
Positive
Negative
Zero
Same
Henry Gantt developed Bar charts for planning and scheduling of projects in
1880
1900
1920
1940
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
Select the correct statement.
Activity arrows in a CPM network are drawn to scale
The tail of an arrow represents the finish of an activity
Arrow bead represents the start of an activity
None of the above
Pick up the correct statement from the following with regards to C.P.M. network analysis of projects
The latest occurrence time of the node of which the activity arrow terminates minus the duration of the activity, is called latest start time
The latest occurrence time for the node at which the activity arrow terminates, is called latest finish time
Earliest occurrence time of the event from which the activity arrow' originates, is called earliest start time of the activity
All the above
Select the incorrect statement.
Start float and finish float are always equal.
Total float can be either start float or finish float.
Start float and finish float need not be equal.
Start float and finish float are the differences between activity times and not event times.
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
Military organisation is known as
Line organisation
Line and staff organisation
Functional organisation
None of these
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
The original cost of an equipment is Rs.10,000. Its salvage value at the end of its total useful life of five years is Rs. 1,000. Its book value at the end of two years of its useful life (as per straight line method of evaluation of depreciation) will be
Rs. 8,800
Rs. 7,600
Rs. 6,400
Rs. 5,000
The reduction in project time normally results in
Decreasing the direct cost and increasing indirect cost
Increasing the direct cost and decreasing the indirect cost
Increasing the direct cost and indirect cost both
Decreasing the direct cost and indirect cost both