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 garments factory employs 3 categories of workers K, M and N. The efficiency of the 3 categories of workers to do a specific task is in the ratio of 3 : 5 : 6 respectively and the factory employs 15 of category K, 12 of category M and 3 of category N. If the total wages paid to the entire group of 30 workers is Tk. 492 per hour, what will be the wages earned by a category N worker for an 8-hour day?
A Tk. 144
B Tk. 72
C Tk. 192
D Tk. 576
H উচ্চতায় অবস্থিত একটি বেলুন থেকে একটি পাথর ছেড়ে দিলে তা । উচ্চতায় অবস্থিত একটি হেলানো তনের উপর আছড়ে পড়ে। হেলানো শুলকে আঘাতের পর পাথরটির বেগ আনুভূমিক হয়। h/H এর মান কত হলে পাথরটি ভূমিকে স্পর্শ করতে সর্বোচ্চ সময় নিবে? (A stone falls from a balloon at a height of H above the ground and hits an inclined plane in its path at a height of h. After impact, the velocity of the stone becomes horizontal. What should be the value of hill so that the stone will take maximum time to reach the ground?)
A H-hh
B 12
C 32
D hH-h
E 2
Hard and tough materials like cast iron should be turned at
A Slow speed
B High speed
C Any speed
D Certain specific speed
He never comes first because he hardly works hard. Here 'hard' is a/an
A pronoun
B adjective
C adverb
D verb
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
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
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
Which of the following is a fine crusher?
A Blake jaw crusher
B Gyratory crusher
C Toothed roll crusher
D Dodge jaw crusher

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