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_______________?

Related Mcqs:

1. A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence 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

2. 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________________?

   A. 3425 kg
   B. 5515 kg
   C. 4350 kg
   D. 2975 kg

3. 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

4. Wheeled tractors are replacing crawler tractors because________________?

   Consider the following statements?

   1. wheeled tractors travel faster
   2. crawler tractors are more expensive
   3. track parts of a crawler wear out quickly
   4. crawler tractors have stick control

   A. 1,3 and 4 are correct
   B. 2, 3 and 4 are correct
   C. 1,2 and 3 are correct
   D. 1, 2 and 4 are correct

5. A tractor shovel has a purchase price of Rs. 4.7 lacs and could save the organization an amount of rupees one lac per year on operating costs. The salvage value after the amortization period is 10% of the purchase price. The capital recovery period will be________________?

   A. 3.7 years
   B. 4.23 years
   C. 5 years
   D. 7.87 years

6. If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is_________________?

   A. 500 cum
   B. 1000 cum
   C. 1500 cum
   D. 2000 cum

7. If the gross vehicle weight of a truck is 30 t 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

8. A four wheel trac*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___________________?

   A. 20 kg/tonne
   B. 30 kg/tonne
   C. 40 kg/tonne
   D. 50 kg/tonne

9. The area under the Beta – distribution curve is divided into two equal parts by_______________?

   A. most likely time
   B. optimistic time
   C. pessimistic time
   D. expected time

10. The time by which a particular activity can be delayed without affecting the preceding and succeeding activities is known as_______________?

    A. total float
    B. free float
    C. interfering float
    D. independent float