(A) Steel can be saved.
(B) Accidents due to contraction in winter can be avoided.
(C) Air gaps are necessary for bearing the weight of running train.
(D) Accidents due to expansion in summer can be avoided.
Answer: (D) Accidents due to expansion in summer can be avoided.
Q. In mechanics terms, a chassis or a frame work for carring wheels attached to a vehicle is called:
(A) Bogie
(B) Trolley
(C) Wheelbarrow
(D) None of these
Answer: (A) Bogie
Q. The word “train” comes from the old French trahiner, derived from the Latin trahere meaning:
(A) to drag
(B) to pull
(C) to speedup
(D) None of these
Answer: (B) to pull