Correct answer
C. None of these
Explanation
The correct answer is None of these.
For which of the following materials, the output of power shovels for a fixed shovel size will be maximum________?
Minimum width of landing should be________?
Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________?
The mechanism method and the statical method give________?
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________?
The region between the separation streamline and the boundary surface of the solid body is known as________?