1.

Types of choppers
(A) Type-A chopper
(B) Type-B chopper
(C) Type-C chopper
(D) Type-D chopper

A. 3 1 4 2
B. 2 1 4 3
C. 3 4 1 2
D. 3 1 2 4
Answer» B. 2 1 4 3


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