A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Related Mcqs:
- If the output of a dragline 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 - For which of the following materials, the output of power shovels for a fixed shovel size will be maximum_______________?
A. Moist loam
B. Good common earth
C. We|l blasted rock
D. Wet sticky clay - 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
select the correct statements?A. (ii), (iii) and (iv) are correct
B. (i), (ii) and (iv) are correct
C. (i), (iii) and (iv) are correct
D. (i) and (iv) are correct - 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 - For a given size of bucket, the ideal output of a dragline will be least in_______________?
A. Moist loam
B. Sand and gravel
C. Good common earth
D. Wet sticky clay - For excavating utility trenches with precise control of depth, the excavation equipment used is_______________?
A. Hoe
B. Shovel
C. Dragline
D. None of the above - Which of the following earth moving machines has the shortest cycle time?
A. Drag line
B. Hoe
C. Clam shell
D. Dipper shovel - For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5, 17 and 8 days respectively, The expected time is__________________?
A. 8 days
B. 9 days
C. 10 days
D. 15 days - Mobilization advance up to 10% of the cost of work is given to a contractor_______________?
A. on commencement of work at site for payment of loan taken by him
B. for the purchase of construction materials
C. for the payment of advances to labour and other staff
D. for all activities required to start the work at site on finalization of the contract document - Critical path_____________?
A. is always longest
B. is always shortest
C. may be longest
D. may be shortest
