Related Questions

What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls?
A 16°
B 32°
C 40°
D 46°
A steel mill produces 180 tons of steel per month Raw materials cost for each ton of production is Tk. 1200. Other expenses of that mill are Tk. 90,000 in each month what should be the selling price of each ton of steel in order to make 10% profit?
A 1870
B 1845
C 1842
D 18145
The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as
A Freyssinet system
B Magnel-Blaton system
C C.C.L. standard system
D Lee-McCall system
In case of a double cage induction motor, the inner cage has
A high inductance arid low resistance
B low inductance and high resistance
C low inductance and low resistance
D high inductance and high resistance
Choke crushing (in case of a Jaw crusher) compared to free crushing
A Results in increased capacity
B Consumes less power
C Consumes more power
D Both A and C
For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to
A The new surface created
B The size reduction ratio
C The change in volume due to crushing
D None of these
In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill.
A 35
B 50
C 70
D 85
In this type of drawing, vertical pipes may be revolved into the horizontal plane:
A Standard view
B Elevation view
C Transverse piping
D Developed piping
In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by
A 10%
B 20%
C 30%
D 40%
Gravity stamp mill is meant for the __________ crushing.
A Primary
B Intermediate
C Fine
D Ultrafine

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