When power shovels are operated under different site conditions (in terms of material handled), what is the correct sequence in the increasing order of the ouput for the following materials ?1. Well - blasted rock2. Hard and tough clay3. Poorly blasted rock4. Moist loam or sandSelect the correct answer using the code given below :

When power shovels are operated under different site conditions (in te

1.	When power shovels are operated under different site conditions (in terms of material handled), what is the correct sequence in the increasing order of the ouput for the following materials ?1. Well - blasted rock2. Hard and tough clay3. Poorly blasted rock4. Moist loam or sandSelect the correct answer using the code given below :
A.	1 - 2 - 3 - 4
B.	1 - 4 - 3 - 2
C.	4 - 2 - 3 - 1
D.	4 - 3 - 1 - 2
Answer» D. 4 - 3 - 1 - 2

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