If Reynolds number is greater than 1, then the_____________________?
(A) Viscous force is larger than the inertia force
(B) Inertia force is larger than the viscous force
(C) Inertia force is larger than the surface tension force
(D) Inertia force is larger than the gravitational force
Normalising of an object does not________________________?
(A) Refine coarse grain structure obtained during hot working
(B) Improve ductility
(C) Improve yield strength
(D) Improve mechanical properties
As per international norms, the maximum permissible value of noise level in the industrial environment is _____________ decibels as measured at a distance of 1.5 meters from the source of noise?
(A) 110
(B) 85
(C) 60
(D) 45
The delivery pressure of boiler feed water pump compared to the boiler steam pressure is___________________?
(A) Same
(B) Slightly less
(C) Slightly more
(D) Much more
For a first order chemical reaction, the concentration of the reactant decreases __________________ with time?
(A) Linearly
(B) Exponentially
(C) Logarithmically
(D) Inversely
Starting friction is low in case of the ____________________ lubrication?
(A) Boundary
(B) Hydrodynamic
(C) Hydrostatic
(D) Mixed/semi-fluid
Large scale fire on fuel gas line is normally extinguished by________________?
(A) Water
(B) Steam
(C) Foam
(D) Nitrogen
Which of the following metals is not subjected to electrolytic refining/purification ?
(A) Copper
(B) Zinc
(C) Tin
(D) Aluminium
Strain hardening effect in a metal subjected to cold working is due to the ______________ mechanism?
(A) Fracture
(B) Dislocation
(C) Slip
(D) Twinning