A. Crusher
B. wet classifier
C. Dry classifier
D. Magnetic separator
Related Mcqs:
- Dowtherm is a____________________?
A. High temperature heating medium (a petroleum product)
B. Product of coal tar distillation
C. Very heat sensitive material
D. None of these - Volume of blast furnace slag is about _______________ times the volume of hot metal (pig iron) of the same weight ?
A. 1.5
B. 3
C. 5
D. 7 - Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank) ?
A. H
B. H/2
C. H/4
D. H/6 - The pressure outside a bubble/droplet of liquid is ________________ the internal pressure?
A. Greater than
B. Less than
C. Equal to
D. Unpredictable; depends on the bubble size - The majority charge carriers in p-type silicon are______________________?
A. Free electrons
B. Ions
C. Conduction electrons
D. Holes - Brazing is the joining of metals_____________________?
A. Without melting the base metal
B. With a non-ferrous filler
C. Both A. & B.
D. Neither A. nor (B) - Water-tube boiler is the one, in which _____________________?
A. Water passes through tubes and flue gases around it
B. Tube carrying hot flue gases are immersed in a pool of water
C. Tubes are placed in vertical position
D. None of these
Answer: Option A - Powder metallurgy process does not make metal powder by_________________________?
A. Atomisation
B. Grinding/milling
C. Hammering
D. Electrolytic deposition - A dense structure of grinding wheel is not used for the_____________________?
A. Ductile material
B. Hard materials
C. Brittle materials
D. Finishing cuts - Stainless steel is welded using__________________?
A. Oxy-acetylene flame
B. Oxy-hydrogen flame
C. Arc welding
D. Inert gas arc welding
