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
Correct Answer :
C. 9 kg/tonne
Related Questions
If the expected time for completion of a project is 10 days with a standard deviation of 2 days, the expected time of completion of the project with 99.9% probability is
4 days
6 days
10 days
16 days
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
The most suitable type of equipment for compaction of cohesive soils is
Smooth-wheeled rollers
Vibratory rollers
Sheep foot rollers
Tampers
Total float for any activity is defined as the difference between
Its latest finish time and earliest start time for its successor activity
Its latest start time and earliest start time
Its latest start time and earliest finish time
Its earliest finish time and earliest start time for its successor activity
Works costing less than Rs. 20,000 are treated as
Any project
Major projects
Minor projects
All the above
Henry Gantt developed Bar charts for planning and scheduling of projects in
1880
1900
1920
1940
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
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
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
Pick up the correct statement from the following:
The difference of latest occurrence time and earliest expected time, is called slack
The activities connecting the events having zero slack, lie on the critical path
The critical path consumes the maximum time
All the above
A dummy activity
Is artificially introduced
Is represented by a dotted line
Does not consume time
All the above
Which of the following is not a PERT event?
Site investigation started
Sessional work completed
Bus starts from Jaipur
Class is being attended
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
PERT is
An analytic in concept
Limited of event oriented diagrams
Used for research and development projects
All the above
The difference between the time avail-to do a job and the time required to do the job, is known as
Event
Float
Duration
Constraint
If TL is the latest allowable event occurrence time, total activity slack(s), is equal to
LST-EST
LFT-EFT
TL-EFT
All the above
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%
Which of the following earth moving machines has the shortest cycle time?
Drag line
Hoe
Clam shell
Dipper shovel
Consider the following features/factors:
1. Projects are of the non-repetitive type
2. Time required need not be known
3. Time required is known precisely
4. Events have been established for planning
5. Emphasis is given to activities of project PERT is preferred for planning because of
1, 2 and 4
3, 4 and 5
1, 3 and 4
1, 2 and 5
Consider the following activities in a building construction:
1. Concreting of roof slabs
2. Brick-jelly lime concrete terracing
3. Erection of form work for slab
4. Construction of parapet wall in terrace
The correct sequence of these activities is
1, 3, 2, 4
3, 1, 4, 2
3, 1, 2, 4
1, 3, 4, 2
Pick up the PERT event from the following:
Digging of foundation started
Digging of foundation completed
Laying of concrete started
All the above
The salient feature of functional organisation is
Strict adherence to specifications
Separation of planning and design part
Each individual maintains functional efficiency
All the above
Critical path lies along the activities having total float
Positive
Negative
Zero
Same
At a work site, statistical quality control of concrete means
Measurement of risks to eliminate failures
Applying the theory' of probability to sample testing or inspection
Reduction in wastage of inspection costs
Reduction in costs for the removal of defects
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
The main principle of an organisation, is
Unity of command
Effective control at all levels
Delegation of authority
All the above
Consider the following statements for a power shovel: (i) Output can be increased by reducing the angle of swing for a given depth of cut. (ii) For a given angle of swing, output will be maximum at optimum depth of cut. (iii) Output can be increased by keeping the depth of cut less than optimum depth, (iv) Output can be increased by increasing the size of shovel. Of these statements
(ii), (iii) and (iv) are correct
(i), (ii) and (iv) are correct
(i), (iii) and (iv) are correct
(i) and (iv) are correct
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
Site order book is used for recording
Instructions by the executive engineers
Construction measurements
Issue of store equipments
Names of the casual labour
Frederick W. Taylor introduced a system of working known as
Line organisation
Line and staff organisation
Functional organisation
Effective organisation