Related Questions

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
A Cresylic acid
B Xanthaies
C Pine oil
D All of the above
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
A liquation
B leaching
C levigation
D magnetic separation
Ore concentration by froth floatation utilises the __________ of ore particles.
A Density difference
B Wetting characteristics
C Terminal velocities
D None of these
Leaching of uranium ore and gold ore is done in
A Centrifugal extractor
B Pachuka tanks
C Bollman extractor
D None of these
Which of the following mineral dressing operations is termed as 'comminution'?
A Panning
B Spiralling
C Tabling
D None of these
A person who is against the standards of ordinary society especially in dressing
A Joker
B Hippy
C Scapegoat
D Butt
A compression dressing or a cast is applied after amputation to- 
A Reduce pain
B Shape the residual limb
C Prevent wound contamination
D Stimulation of nerve ending
Purposes of dressing are-
A Keep wound clean
B Prevent swelling
C Help to moving
D Prevent infection
E Family satisfaction
The military operation carried out by the Pakistan Army in the erstwhile East Pakistan in March 1971 was named operation
A Searchlight
B Jackpot
C Blitz
D Jinnah
In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.
A AND
B OR
C NAND
D NOR
E None of the above

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