Taper gererally used in lathes now-a-days is
A.Brown and sharpe
B.Morse
C.Jarno
D.Parkinson
E.None of above
Category: Engineeeing Mcqs
There is no need for the withdrawal of pattern from the mould in case of
A.wax patterns
B.hollow patterns
C.patterus with core
D.consumable patterns
When metallic surfaces are oxidized the emissivity
A.Increases
B.Decreases
C.Does not change
D.Depends on the temperature
E.Depends on other factors
In steel carbon is
A.present wholly in the combined form
B.mostly present in the free state as graphite
C.not desirable
D.none of the above
During sensible of cooling of air
A.Wet bulb temperature decreases and relative humidity increases
B.Wet bulb temperatures increases and relative humidity decreases
C.Both wet bulb temperatures as well as relative humidity increase
D.Both wet bulb temperature as well as relative humidity decrease
E.Both humidity ratio as well as relative humidity remain constant
The pour point of diesel fuel oil must be
A.More than the coldest atmospheric temperature at which oil is to be pumped
B.Less than the coldest atmospheric temperature of which oil is to be pumped
C.More than 100?C
D.More than 0?C
E.Less than 0?C
In order to lower the cutting forces and also to decrease the cutting wear, alloying element generally added to steel for free machining is
A.Manganese
B.Lead
C.Chromium
D.Aluminium
E.Sulphur
Which of the following is very powerful carbide former in cast iron?
A.Silicon
B.Vanadium
C.Chromium
D.Nickel
The extinction coefficient for different qualities of glasses varies in the range of
A.5-25 m-1
B.5-25 cm-1
C.5-25 mm-1
D.5-25 km-1
The internal energy of an ideal gas depends on
A.its pressure only
B.its volume only
C.its temperature only
D.the size of its molecules only
