Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?
Ice
Concrete
Loose sand
Earth
Correct Answer :
D. Earth
Related Questions
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
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
Which one of the following represents an event?
Concrete cured
Fixing of door
Plastering of walls
Selecting sites
The area under the Beta distribution curve is divided into two equal parts by
Most likely time
Optimistic time
Pessimistic time
Expected time
The process of incorporating changes and rescheduling or replanning is called
Resource levelling
Resource smoothening
Updating
Critical path scheduling
The critical activity has
Maximum float
Minimum float
Zero float
None of these
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
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
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
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
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
Pre-tender stage requires
Acquisition of land
Selection of site
Fmalisation of alignment of work
All the above
A CPM family includes
CPA (Critical Path Analysis)
CPP (Critical Path Plotted)
MCE (Minimum Cost Expenditure)
All the above
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
A machine is purchased for Rs. 10,000,00 and has an estimated life of 10 years. The salvage value at the end of 10 years is Rs. 1,50,000. The book value of the machine at the end of 5 years using general straight line method of evaluation of depreciation is
Rs. 4,75,000
Rs. 5,75,000
Rs. 6,50,000
Rs. 8,50,000
In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?
Yes, because of heavier overheads and handling cost
Yes, because of the very high order of quality control for the factory made components
No, because of repetitive manufacture of a number of elements
No, because of savings in site labour
During the construction period, price variation clause in contracts caters to
Increase in rates of only important materials
Variation in cost in materials element, labour element and petrol-oillubricant element
Variation in total cost of the project on an ad hoc basis
Rate of inflation
The probability of completion of any activity within its expected time is
50 %
84.1 %
99.9 %
100 %
An event is indicated on the network by a number enclosed in
A circle
A square
A triangle
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
In the given figure, the network of a project represents
Activity of an excavation of a footing
Activity of an excavation which starts at event No. 1 and ends at even No. 2
Activity of excavation which takes 8 units of time
None of these
The main principle of an organisation, is
Unity of command
Effective control at all levels
Delegation of authority
All the above
While filling the tender for any work, the contractor considers
Site survey
Availability of construction materials
Availability of labour
All the above
If t is the duration of an activity, t1 is the latest finish possible moment of its preceding activity and t2 is the earliest start possible moment, the independent float of the activity is
(t1 - t2) - t
t - (t1 - t2)
(t1 + t2) - t
t + (t1 - t2)
Bar charts are suitable for
Minor works
Major works
Large projects
All the Above
The rated loads of lifting cranes, as percentage of tipping load at specified radius, for crawler-mounted and pneumatic tyre-mounted machines would be respectively
80 and 90
90 and 80
85 and 75
75 and 83
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
Henry Gantt developed Bar charts for planning and scheduling of projects in
1880
1900
1920
1940
Sinking fund is
The fund for rebuilding a structure when its economic life is over
Raised to meet maintenance costs
The total sum to be paid to the municipal authorities by the tenants
A part of the money kept in reserve for providing additional structures and structural modifications
A critical ratio scheduling
Determines the status of each activity
Adjusts automatically changes in activity progress
Is a dynamic system
None of these