OBJECTIVES
1) The major loss of energy in long pipes is due to
a) sudden enlargement
b) sudden contraction
c) gradual contraction or enlargement
d) friction
2) An invar tape is made of an alloy of
a) copper and steel
b) brass and nickel
c) brass and steel
d) nickel and steel
3) A rain gauge should preferably be fixed
a) near the building
b) under the tree
c) in an open space
d) in a closed space
4) A 70% index of wetness means
a) rain excess of 30%
b) rain deficiency of 30%
c) rain deficiency of 70%
d) none of the above
5) Percentage of free carbon in bitumen is
a) more than that in tar
b) less than that in tar
c) equal to that in tar
d) none of the above
6) Creep is the
a) longitudinal movement of rail
b) lateral movement of rail
c) vertical movement of rail
d) difference in level of two rails
7) The most common cause of acidity in water is
a) carbon dioxide
b) oxygen
c) hydrogen
d) nitrogen
8) Which one of the following compounds are widely used for algae control?
a) sodium sulphate
b) copper sulphate
c) sodium chloride
d) calcium chloride
9) Stoke's law is valid only if the size of particle is
a) less than 0.0002 mm
b) greater than 0.2 mm
c) between 0.2 and 0.0002 mm
d) all of the above
10) Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
a) granite
b) sand stone
c) lime stone
d) quartzite
ANSWERS :
1) d
2) d
3) c
4) b
5) b
6) a
7) a
8) b
9) c
10) a
