Related Questions

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
Which of the following is a coarse crusher?
A Smooth roll crusher
B Toothed roll crusher
C Gyratory crusher
D Tube mill
Which of the following comes in the category of primary crusher for hard and tough stone?
A Jaw crusher
B Cone crusher
C Gyratory crusher
D None of these
Which of the following is not a part of the Blake jaw crusher?
A Hanger
B Check plates
C Toggles
D Pitman
In case of a hammer crusher, the
A Feed may be highly abrasive (Moh's scale >5)
B Minimum product size is 3 mm
C Maximum feed size may be 50 mm
D Rotor shaft carrying hammers can be vertical or horizontal
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 $$\frac{{{\text{L}}.{\text{S}}}}{{0.087}}$$
In a roll crusher, both the rolls
A Have the same diameter
B Are rotated towards each other
C Run either at the same or different speeds
D All of the above

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