Mechanical Operations Mcqs for Chemical


Q.  Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed ?

a. Wet grinding in low viscous suspension
b. Wet grinding in high viscous suspension
c. Dry grinding of large particles (upto 1.25 cms)
d. Dry grinding of large particles in un-baffed mills


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Fuel for a nuclear reactor (thermal) is___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  A heterogeneous reactor is the one, in which the moderator and the________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Unit of radioactivity is_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Out of the following places, a nuclear power plant is not located at______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Radioactive decay of a material involves a _____________ order reaction?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The main purpose of control rod in a nuclear reactor is to control the___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The decrease in the atomic number is not observed in case of________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Thorium can be converted into U-233 in a _____________ reactor?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Isotopes of an element have the same__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Use of molten metal as a coolant in fast breeder reactor helps in_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  A nuclear reactor can’t be used for_________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following factors is the most important in the site selection for a nuclear power plant ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Graphite is used in nuclear reactor as_____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following may not need a moderator ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  In nuclear reactions, ______________ number is conserved?
Category: Chemical Engineering Mcqs,   Published by: teswesm