- (A) (1/2π). √(g/r)
- (B) (1/π). √(g/r)
- (C) ½ √(g/r)
- (D) 2π. √(g/r)
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) 1
- (B) 1.5
- (C) 2
- (D) 2.5
- (A) Plate and frame filter
- (B) Rotary vacuum filter
- (C) Batch basket centrifuge
- (D) None of these
- (A) Bag filter
- (B) Electrostatic precipitator
- (C) Cyclone separator
- (D) Wet scrubber
- (A) Cleaning of coal
- (B) Concentration of iron ore
- (C) Concentration of pyrites
- (D) Water treatment
- (A) Constant rate
- (B) Varying pressure
- (C) Varying rate
- (D) Constant pressure
- (A) Froude number is independent for the curves between power number and Reynolds number in baffled system
- (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller
- (C) Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number
- (D) All
- (A) Jet mills
- (B) Fluid energy mill
- (C) Micronizer
- (D) All
- (A) Cresylic acid
- (B) Copper sulphate
- (C) Calcium carbonate
- (D) Sodium carbonate
- (A) Continuously increases
- (B) Continuously decreases
- (C) Remain constant throughout
- (D) May increase or decrease; depends on the pressure
