- A. 20 kg/tonne
- B. 30 kg/tonne
- C. 40 kg/tonne
- D. 50 kg/tonne
Construction Planning and Management
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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_____.
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The three time estimates for the activities of the network shown in the given figure are shown above their arrows. The earliest expected time for the event 4, is_____.
- A. 19
- B. 14
- C. 24
- D. None of these
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Critical path method_____.
- A. Is an improvement upon bar chart method
- B. Provides a realistic approach to daily problems
- C. Avoids delays which are very common in bar charts
- D. All the above
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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_____.
- A. Reduce by 200 kg
- B. Increase by 200 kg
- C. Increase by 250 kg
- D. Reduce by 250 kg
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Which one of the following surfaces will give highest coefficient of traction while using crawler track tractors?
- A. Ice
- B. Concrete
- C. Loose sand
- D. Earth
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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
- A. 10000 kg
- B. 12500 kg
- C. 22500 kg
- D. 5000 kg
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The time with which direct cost does not reduce with the increase in time is known as_____.
- A. Crash time
- B. Normal time
- C. Optimistic time
- D. Standard time
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Which one of the following represents an event?
- A. Concrete cured
- B. Fixing of door
- C. Plastering of walls
- D. Selecting sites
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If the output of a drag-line for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120 % of optimum depth of cut will be_____.
- A. Equal to X
- B. More than X
- C. Less than X
- D. Any of the above
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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_____.
- A. 30 kg
- B. 300 kg
- C. 900 kg
- D. 1000 kg
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