Related Questions

The material is crushed in a gyratory crusher by the action of
A impact
B compression
C attrition
D cutting
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 $$\frac{{{\text{L}}.{\text{S}}}}{{0.087}}$$
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
Arif and Babu worked together to paint a house. Arif worked for 1 hour 45 minutes and Babu worked for 45 minutes. Babu's hourly rate is double the rate of Arif's. If the two toghther earned Tk 71.50, what is hourly rate of Arif in Taka?
A 20
B 22
C 22.50
D None of these
Pasha is paid an hourly rate of Tk. 11 with overtime at 1.5 times the hourly rate for any hours in excess of 40 per week. In addition, he also receives a 6% commission on all sales over Tk. 2,500 per week. He worked for 53 hours last week and had sales of Tk. 8,659. What were his gross earnings in Tk. for the week?
A 1,024.04
B 654.50
C 1,174.20
D 1,191.08
Rahim is paid twice the hourly wages of selim ,Karim is paid one -third of the hourly wage of Karim is delim paid?
A 2/3
B 3/5
C 3/6
D 3/8
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
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
Electrical energy consumed by a jaw crusher is not a function of the
A average feed size
B average product size
C machine capacity
D none of these
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

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