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
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%
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
In a roll crusher, the specific power consumption and the production rate is affected by the
A Reduction ratio
B Differential roll speed
C Both A & B
D Neither A nor B
If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not correct ?
A $$\left( {A + B} \right)\alpha \,C$$
B $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
C $$\sqrt {AB} \,\alpha \,C$$
D $$\frac{A}{B} = {\text{constant}}$$
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
For marketing purpose, the automobile industry might want to dust off its slogan "power to the people". Detroit and the foreign automakers are in a horsepower war not seen since the muscle car era of the 1960s. What does the second sentence do?
A It describes an effect for the cause stated in the first sentence
B It explains the idea in the first sentence
C it draws a conclusion.
D it provides an example
For diesel locomotives the range of horsepower is
A 50 to 200
B 500 to 1000
C 1500 to 2500
D 3000 to 5000

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