Related Questions

Toothed roll crushers achieve size reduction by
A Tearing (shear) and compression
B Impact and attrition
C Both A & B
D Neither A nor B
Size reduction mechanism used in Jaw crushers is
A Attrition
B Compression
C Cutting
D Impact
A case of 12 rolls of paper towels sells for $ 9. The cost of one roll sold individually is $ 1. what is the percent of savings per per roll for the 12-roll package over the cost of 12 rolls purchased individually?
A 25%
B 90%
C 15%
D 11%
A case of 12 rolls of paper towels sells for $ 9. The cost of one roll sold individually is $ 1. what is the percent of savings per roll for the 12 roll package over the cost of 12 rolls purchased individually?
A 9%
B 33.33%
C 25%
D 15%
Reduction ratio of crushers is the
A Ratio of feed opening to discharge opening
B Ratio of discharge opening to feed opening
C Determining factor for minimum dia of the feed and the product
D None of these
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
The term 'angle of nip' is concerned with the operation of the __________ crushers.
A Jaw
B Roll
C Gyratory
D None of these
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
In jaw crushers a motor has to often start against ________ load.
A Heavy
B Medium
C Normal
D Low
A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes ?
A 32 rolls
B 54 rolls
C 108 rolls
D 120 rolls

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