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Quiz 5
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Q.1
A critical ratio scheduling
Determines the status of each activity
Adjusts automatically changes in activity progress
Is a dynamic system
None of these
Q.2
A golden rule for the procurement of construction stones, suggests
100% at the site
67% at the site and 33% under procurement
50% at the site and 50% under procurement
33% at the site and 67% under procurement
Q.3
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
Q.4
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
Q.5
A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will
Reduce by 200 kg
Increase by 200 kg
Increase by 250 kg
Reduce by 250 kg
Q.6
For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is
1
2
3
4
Q.7
Various activities of a project, are shown on bar charts by
Vertical lines
Horizontal lines
Dots
Crosses
Q.8
The normal time required for the completion of project in the above problem is
9 days
13 days
14 days
19 days
Q.9
If to, tp and tm are the optimistic, pessimistic and most likely time estimates of an activity respectively, the expected time t of the activity will be
to + 3tm+ tp/3
to + 4tm+ tp/4
to + 4tm+ tp/5
to + 4tm+ tp/6
Q.10
The first stage of a construction, is
Preparation of estimate
Survey of the site
Initiation of proposal
Preparation of tender
Q.11
A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be
15 minutes
20.143 minutes
21 minutes
27 minutes
Q.12
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
Q.13
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
Q.14
A construction schedule is prepared after collecting
Number of operations
Output of labour
Output of machinery
All the above
Q.15
If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively
3.5 and 5/6
5 and 25/36
3.5 and 25/36
4 and 5/6
Q.16
Bar charts are suitable for
Minor works
Major works
Large projects
All the Above
Q.17
The probability of completion of any activity within its expected time is
50 %
84.1 %
99.9 %
100 %
Q.18
For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5, 17 and 8 days respectively, The expected time is
8 days
9 days
10 days
15 days
Q.19
For a given size of bucket, the ideal output of a dragline will be least in
Moist loam
Sand and gravel
Good common earth
Wet sticky clay
Q.20
For the network shown in the given figure, the expected time for the activity
1-2 is 4
2-3 is 7
3-4 is 8
All the above
Q.21
Railway projects are treated as
Light construction
Heavy construction
Industrial construction
None of these
Q.22
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
Q.23
Construction team means
An engineer
An architect
An owner
All the above
Q.24
Assertion (A): Activity 57 is critical.
Reason (R): Earliest finish time and latest finish time for events 57 are same
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
Q.25
The time which results in the least possible construction cost of an activity, is known as
Normal time
Slow time
Crash time
Standard time
Q.26
The time by which activity completion time can be delayed without affecting the start of succeeding activities, is known as
Duration
Total float
Free float
Interfering float
Q.27
If the scheduled completion time of a project is more than the earliest expected time for completion of the project, then the probability of completion of the project within the scheduled completion time will be
50 %
Less than 50 %
More than 50 %
100 %
Q.28
The direct cost of a project with respect to normal time is
Minimum
Maximum
Zero
Infinite
Q.29
The area under the Beta distribution curve is divided into two equal parts by
Most likely time
Optimistic time
Pessimistic time
Expected time
Q.30
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
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