Related Questions

According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than
A 0.00184
B 0.0184
C 0.184
D 1.84
In jaw crushers a motor has to often start against ________ load.
A Heavy
B Medium
C Normal
D Low
Size reduction mechanism used in Jaw crushers is
A Attrition
B Compression
C Cutting
D Impact
Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation?
A check plates
B jaw plates
C toggles
D crush shaft
Which of the following is not a part of the Blake jaw crusher?
A Hanger
B Check plates
C Toggles
D Pitman
During size reduction by a jaw crusher, the energy consumed decreases with the
A Decreasing size of product at constant size of feed
B Decreasing machine capacity
C Increasing size of feed at constant reduction ratio
D None of these
Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm)
A 0.01 L.S
B 0.087 L.S
C L.S
D $$\frac{{{\text{L}}.{\text{S}}}}{{0.087}}$$
Electrical energy consumed by a jaw crusher is not a function of the
A average feed size
B average product size
C machine capacity
D none of these
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
Size reduction of __________ is accomplished in steam heated rollers and roll crushers.
A Resins
B Gums
C Hard rubber
D Waxes

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