A beam fixed at both ends with a central load W in the middle will have zero bending moment at
A.one place
B.two places
C.three places
D.no where
Category: Mechanical Engineering Mcqs
The edges of boiler plates for fullering and caulking are bevelled at an angle of
A.30?
B.45?
C.60?
D.70?
E.80?
Brine is always used as a secondary refrigerant in
A.Cold storage plant
B.Milk chilling plant
C.Cinema hall air conditioning plants
D.Ice plant
E.All of the above
Efficiency of gas turbine is increased by
A.Reheating
B.Intercooling
C.Adding a regenerator
D.All of the above
E.None
The ‘dead time’ of the instrument is
A.The time required by an instrument for initial warming up
B.The time required by an instrument to begin to respond to a change in the measured value
C.The largest change of input quantity for which there is no output of the instrument
D.None of the above
The emission of oxides of nitrogen in automobile exhaust will be least when the vehicle is
A.Idling
B.Cruising at low speed
C.Cruising at high speed
D.Accelerating
E.Decelerating
Refractories should have all the following properties EXCEPT:
A.Minimum contraction and expansion due to temperature variations
B.High electrical conductivity
C.Long life
D.Heat insulation
A blind riser can be located
A.in cope
B.in drag
C.in either cope or drag
D.in cheek only
Shell moulding is a process in which
A.a thin shell is cast in sand mould
B.a strong core is prepared
C.a mould comprising thin shell is produced by mixing dry silica and resin binder
Water is fed to the boiler at
A.Atmospheric pressure
B.Less than atmospheric pressure
C.Slightly more than atmospheric pressure
D.At 100 kg/cm2
E.At pressure more than the steam pressure
