Output of a bulldozer is
(i) Increased if drawbar HP of the tractor is increased for a given hauling distance
(ii) Decreased if drawbar HP of the tractor is increased for a given hauling distance
(iii) Increased if the hauling distance is increased for a given drawbar HP of the tractor
(iv) Decreased if the hauling distance is increased for a given drawbar HP of the tractor
Of these statement
(i) and (iii) are correct
(i) and (iv) are correct
(ii) and (iii) are correct
(ii) and (iv) are correct
Correct Answer :
B. (i) and (iv) are correct
Related Questions
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
Select the correct statement.
Activity arrows in a CPM network are drawn to scale
The tail of an arrow represents the finish of an activity
Arrow bead represents the start of an activity
None of 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)
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
Pick up the PERT event from the following:
Digging of foundation started
Digging of foundation completed
Laying of concrete started
All the above
A machine costs Rs. 20000 and its useful life is 8 years. The money is borrowed at 8% interest per annum. The capital recovery factor at 8% interest per annum for 8 years is 0.174. The annual equipment cost of the machine will be
Rs. 1740
Rs. 3480
Rs. 5220
Rs. 6960
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
Residential buildings are treated as
Light construction
Heavy construction
Industrial construction
Private construction
Final technical authority of a project lies with
Assistant Engineer
Executive Engineer
Superintending Engineer
Chief Engineer
Henry Gantt developed Bar charts for planning and scheduling of projects in
1880
1900
1920
1940
The time corresponding to minimum total project cost is
Crash time
Normal time
Optimistic time
Between normal time and crash time
The critical activity has
Maximum float
Minimum float
Zero float
None of these
A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is: Drive wheels: 25000 kg Scraper wheels: 10000 kg If the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is
10000 kg
12500 kg
22500 kg
5000 kg
Which of the following excavators is most suitable for digging under water?
Drag line
Hoe
Clam shell
Dipper shovel
Which of the following earth moving machines has the shortest cycle time?
Drag line
Hoe
Clam shell
Dipper shovel
Preliminary project report for a road project must contain
The detailed estimated cost based on detailed design
The several alternatives of the project that have been considered
The soil survey, traffic survey, concept design and approximate cost
The contract documents for inviting tenders
The constraints in case of resource smoothening operation would be
Resources
Project duration time
Both resources and project duration time
None of the above
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
For the execution of a project, a contractor is
A person
A firm
An agency
All the above
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
The direct cost of a project with respect to normal time is
Minimum
Maximum
Zero
Infinite
Which one of the following represents an event?
Concrete cured
Fixing of door
Plastering of walls
Selecting sites
An excavator costs Rs. 20,00,000 and has an estimated life of 8 years. It has no salvage value at the end of 8 years. The book value of the excavator at the end of 3 years using general double declining balance method is
Rs. 8,43,750
Rs. 8,75,000
Rs. 10,50,000
Rs. 11,56,250
The first stage of a construction, is
Preparation of estimate
Survey of the site
Initiation of proposal
Preparation of tender
The main advantage of line organisation is:
Effective command and control
Rigid discipline in the organisation
Defined responsibilities at all levels
All the above
Modular co-ordination of construction means proper
Planning
Designing
Execution
All the above
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
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
Consider the following operations:
1. Drilling
2. Blasting
3. Mucking
4. Placing steel
5. Placing concrete
The correct sequence of these operations in tunnel construction is
1, 2, 4, 3, 5
1, 3, 2, 4, 5
1, 2, 3, 4, 5
1, 3, 4, 2, 5