Q.

                                 type of excavator carries the skimmer at its lower end.

A. skimmer
B. dredger
C. escalator
D. elevator
Answer» A. skimmer
Explanation: skimmer is used for surface excavation and levelling and it cuts the surface of earth to a depth of about 200 mm to 300 mm. the skimmer excavator can also be used for loading the loose excavated material.
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