Which of the following excavators is most suitable for digging under water?
Drag line
Hoe
Clam shell
Dipper shovel
Correct Answer :
A. Drag line
Related Questions
While filling the tender for any work, the contractor considers
Site survey
Availability of construction materials
Availability of labour
All the above
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
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
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
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
For completion of a project, the critical path of the network represents
Minimum time
Maximum time
Maximum cost
Minimum cost
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%
A dummy activity
Is artificially introduced
Is represented by a dotted line
Does not consume time
All the above
Time and progress chart of a construction, is also known as
Bar chart
Gantt chart
Modified Mile stone chart
All the above
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
Mile Stone charts were invented in the year of
1910
1920
1930
1940
The time corresponding to minimum total project cost is
Crash time
Normal time
Optimistic time
Between normal time and crash time
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
Critical path lies along the activities having total float
Positive
Negative
Zero
Same
Which of the following excavators is most suitable for digging under water?
Drag line
Hoe
Clam shell
Dipper shovel
The Overall in-charge of an organisation at the site responsible for the execution of the works, is
Executive Engineer
Engineer
Junior Engineer
Assistant Engineer
The main principle of an organisation, is
Unity of command
Effective control at all levels
Delegation of authority
All the above
A critical ratio scheduling
Determines the status of each activity
Adjusts automatically changes in activity progress
Is a dynamic system
None of these
Consider the following statements: In the bar chart planning
1. Interdependence of the operations cannot be portrayed.
2. Progress of work can be measured.
3. Spare time of the activities can be determined.
4. Schedule cannot be updated. Of these statements
1, 2 and 3 are correct
1 and 4 are correct
2, 3 and 4 are correct
1, 2 and 4 are correct
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 direct cost of a project with respect to normal time is
Minimum
Maximum
Zero
Infinite
Pick up the PERT event from the following:
Digging of foundation started
Digging of foundation completed
Laying of concrete started
All the above
Pre-tender stage requires
Acquisition of land
Selection of site
Fmalisation of alignment of work
All the above
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 first method invented for planning projects, was
Bar chart method
Milestone chart
Critical path method (CPM)
Programme Evaluation and Review Technique (PERT)
Which one of the following represents an activity?
Excavation for foundation
Curing of concrete
Setting of question paper
All the above
Military organisation is known as
Line organisation
Line and staff organisation
Functional organisation
None of these
Economic saving of time results by crashing
Cheapest critical activity
Cheapest noncritical activity
Costliest critical activity
Costliest noncritical activity
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
Bar charts are suitable for
Minor works
Major works
Large projects
All the Above