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
Related Mcqs:
- The capacity of a gyratory crusher is ______________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range.?
A. Same as
B. 2.5 times
C. 5 times
D. 10 times - Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher ?
A. Rod mill
B. Fluid energy mill
C. Gyratory crusher
D. Ball mill - 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 - 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 - Energy consumption in a crusher decreases with increase in the________________________?
A. Size of the product (at constant feed size)
B. Capacity of the crushing machine
C. Size of feed (at constant reduction ratio)
D. All A., B. & C. - 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. L.S/0.087 - Which of the following is not a part of the Blake jaw crusher ?
A. Hanger
B. Check plates
C. Toggles
D. Pitman - 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 ice and gypsum can be accomplished suitably by a _______________ crusher?
A. Blake jaw
B. Toothed roll
C. Gyratory
D. None of these - Size reduction mechanism used in Jaw crushers is__________________?
A. Attrition
B. Compression
C. Cutting
D. Impact
