A dummy activity
Is artificially introduced
Is represented by a dotted line
Does not consume time
All the above
Correct Answer :
D. All the above
Related Questions
Which of the following earth moving machines has the shortest cycle time?
Drag line
Hoe
Clam shell
Dipper shovel
The technique for establishing and maintaining priorities among the various jobs of a project, is known
Event flow scheduling technique
Critical ratio scheduling
Slotting technique for scheduling
Short interval scheduling
PERT analysis is based on
Optimistic time
Pessimistic time
Most likely time
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
Free float is mainly used to
Identify the activities which can be delayed without affecting the total float of preceding activity
Identify the activities, which can be delayed without affecting the total float of succeeding activity
Establish priorities
Identify the activities which can be delayed without affecting the total float of either the preceding or succeeding activities
The critical activity has
Maximum float
Minimum float
Zero float
None of these
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
Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?
Concrete
Loose sand
Asphalt
Firm earth
Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?
Ice
Concrete
Loose sand
Earth
Assertion (A): Activity 57 is critical. Reason (R): Earliest finish time and latest finish time for events 57 are same Select the correct answer.
A is correct but R is not correct
R is correct but A is not correct
Both A and R is correct
Both A and R is incorrect
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
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
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
Military organisation is known as
Line organisation
Line and staff organisation
Functional organisation
None of these
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
PERT is
An analytic in concept
Limited of event oriented diagrams
Used for research and development projects
All the above
Mobilization advance up to 10% of the cost of work is given to a contractor
On commencement of work at site for payment of loan taken by him
For the purchase of construction materials
For the payment of advances to labour and other staff
For all activities required to start the work at site on finalization of the contract document
The first method invented for planning projects, was
Bar chart method
Milestone chart
Critical path method (CPM)
Programme Evaluation and Review Technique (PERT)
Henry Gantt developed Bar charts for planning and scheduling of projects in
1880
1900
1920
1940
The constraints in case of resource smoothening operation would be
Resources
Project duration time
Both resources and project duration time
None of the above
Railway projects are treated as
Light construction
Heavy construction
Industrial construction
None of these
Pick up the incorrect statement from the following:
The difference between the earliest start time and latest finish time of any activity, is the maximum time available for the activity
The difference between the maximum time available for the job and actual time it consumes, is called total float
The difference between the latest start time and earliest start time of an activity, is called total float
None of these
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
Consider the following statements: Wheeled tractors are replacing crawler tractors because
1. Wheeled tractors travel faster.
2. Crawler tractors are more expensive.
3. Track parts of a crawler wear out quickly.
4. Crawler tractors have stick control. Of these statements
1, 3 and 4 are correct
2, 3 and 4 are correct
1, 2 and 3 are correct
1, 2 and 4 are correct
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
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
Crash project duration is obtained by summing the
Normal durations for all the activities
Crash durations for all activities
Crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities
If D is the duration, ES and EF are the earliest start and finish, LS and LF are latest start and latest finish time, then the following relation holds good
EF = ES + D
LS = LF - D
LF = LS + D
All the above
The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is
3425 kg
5515 kg
4350 kg
2975 kg
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