Lakshya Education MCQs

Question: Basic slag is not ground in
A.Jaw crushers
B.Ball mills
C.Compartment mills
D.Tube mills
Answer: Option A

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More Questions on This Topic :

Question 1. Handling of ashes and similar materials can be done best by a __________ conveyor.
  1.    Flight
  2.    Drag or slat
  3.    Belt
  4.    Ribbon
Answer: Option B
Question 2. Bond crushing law
  1.    Calls for relatively less energy for the smaller product particles, than does the Rittinger law
  2.    Is less realistic in estimating the power requirements of commercial crushers
  3.    States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface ratio of the product
  4.    States that the work required for the crushing is proportional to the new surface created
Answer: Option A
Question 3. Compressibility co-efficient for an absolutely compressible cake is
Answer: Option A
Question 4. Ball mill is used for
  1.    Crushing
  2.    Coarse grinding
  3.    Fine grinding
  4.    Attrition
Answer: Option C
Question 5. Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ).
  1.    √μ
  2.    1/√μ
  3.    1/μ
  4.    1/μ²
Answer: Option B
Question 6. The material is crushed in a gyratory crusher by the action of
  1.    Impact
  2.    Compression
  3.    Attrition
  4.    Cutting
Answer: Option B

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