The rated loads of lifting cranes, as percentage of tipping load at specified radius, for crawler-mounted, and pneumatic tyremounted machines would be respectively_________________?

Related Mcqs:

1. 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

2. 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

3. 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

4. Which of the following earth moving machines has the shortest cycle time?

   A. Drag line
   B. Hoe
   C. Clam shell
   D. Dipper shovel

5. The grade resistance factor for an earth moving machine can be obtained by multiplying grade percentage by a factor approximately equal to_________________?

   A. 2 kg/tonne
   B. 6 kg/tonne
   C. 9 kg/tonne
   D. 20 kg/tonne

6. A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be_______________?

   A. 15 minutes
   B. 20.143 minutes
   C. 21 minutes
   D. 27 minutes

7. An earth moving equipment costs Rs. 5,00,000/- and has an estimated life of 10 years and a salvage value of Rs. 50,000/-.What uniform annual amount must be set aside at the end of each of the 10 years for replacement if the interest rate is 8% per annum and if the sinking fund factor at 8% per annum interest rate for 10 years is 0.069 ?

   A. Rs. 31050
   B. Rs. 34500
   C. Rs. 37950
   D. Rs. 50000

8. Batching refers to________________?

   A. controlling the total quantity at each batch
   B. weighing accurately, the quantity of each material for a job before mixing
   C. controlling the quantity of each material into each batch
   D. adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch

9. 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

10. The independent float affects only_______________?

    A. preceding activities
    B. succeeding activities
    C. the particular activity involved
    D. none of the above