Oxygen cylinders are
A.Cast iron cylinders
B.Steel cylinders, welded structure
C.Die cast
D.Seamless steel cylinders
E.Alloy steel cylinders, thermit welded
Category: Mechanical Engineering Mcqs
Which of the following plant is highly sensitive to mercury vapour?
A.Sunflower
B.Ivy
C.Aloc
D.Cherry
E.Sarcococca
In ammonia vapour compression system the temperature rise between the condenser outlet and the expansion valve should be
A.As high as possible to improve the performance
B.As high as possible to reduce motor power inputs
C.As little as possible for better performance
D.Anything as it has no bearing on the performance of system
E.None of the above
Carbondioxide moulding is useful for
A.very thin sections
B.regular sections
C.heavy and thick walled sections
D.all of the above
German silver is an alloy of
A.Nickel, copper and zinc
B.Silver, copper and niclel
C.Silver, copper and lead
D.Silver, gold and platinum
E.Silver with impurities below 1%
In unsteady state, heat transfer occurs when
A.The body through which heat flow is in motion
B.The source of heat is in motion
C.The heat flow changes with change in temperature
D.The heat flow changes with time
E.None of the above
The advantage of product layout is
A.Lower total materials handling cost
B.Lower total production time
C.Less work-in-process
D.Less floor area required per unit of production
E.All of the above
The pressure in millimetres of mercury gauge, equivalent to 68 mm H2O plus 54.4 mm manometer fluid, sp. Gr. 2.5 is
A.10
B.12.5
C.15.5
D.17.5
E.20
