Cochin Shipyard Executive Trainee Mechanical Paper 2019
The type of coupling used to join two shafts whose axes are neither in same straight line nor parallel but interesect is
(a) flexible coupling
(b) universal coupling
(c) oldham coupling
(d) chain coupling
b
Thermal conductivity of solid metals with rise in temperature normally
(a) increases
(b) decreases
(c) remains constant
(d) may increase or decrease depending on temperature
b
Engineering stress-stain curve and true stress-strain curve are equal up to
(a) Proportional limit
(b) Elastic limit
(c) Yield point
(d) Tensile strength point
c
Which type of welding is highly recommended for welding materials having smaller wall thickness?
(a) TIG
(b) MAW
(c) SAW
(d) None of the above
a
Which is best suitable method of layout for Ship building
(a) Process Layout
(b) Product layout
(c) Fixed position layout
(d) None of the above
c
Time dependent permanent deformation is called
(a) Plastic deformation
(b) Elastic deformation
(c) Creep
(d) Anelastic deformation
c
Angles project true size, only when the plane containing the angle and plane of projection are
(a) Adjacent
(b) Aligned
(c) Perpendicular
(d) Parallel
d
The saturation temperature of steam with increase in pressure increases
(a) linearly
(b) rapidly first and then slowly
(c) slowly first and then rapidly
(d) inversely
b
Capilliary action is due to
(a) Surface tension
(b) Cohesion of the liquid
(c) Adhesion of the liquid molecules and the molecules on the surface of a solid
(d) All of the options
d
Euler’s formula holds good only for
(a) Long columns
(b) Short columns
(c) Both long and short columns
(d) Weak columns
a
Leave a Reply