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The frequency response of the filter in the stop band. i. Decreases with increase in frequency ii. Increase with increase in frequency iii. Decreases with decrease in frequency iv. Increases with decrease in frequency

Correct Answer: i and ii
The order of frequency of the filter in the stop band determines either steady decreases or increases or both with increase in frequency.

A rotary drum filter with 30% submergence is used to filter concentrated aqueous slurry of calcium carbonate containing 15lb of solids per cubic foot of water. The pressure–drop is 2011Hg. If the filter cake contains 50% mixture (wet basis), calculate the filter area required to filter 10 gal/min of slurry. The filter cycle time is 5 min. The specific cake resistance depends on the pressure–drop as: α (ft/lb) = α (Δp)0.26, where α = 2.90×1010 Viscosity of the filtrate = 6.72×10-4 lb/ft-s. Density of calcium carbonate = 168.8 lb/ft3. Neglect filter medium resistance.

If δP is the forbidden magnitude value in the pass band and δS is the forbidden magnitude value in th stop band, then which of the following is true in the stop band region?

What is the region between stop band and the pass band frequencies in the magnitude frequency response of a low pass filter?

Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is very high, the filter approaches to which of the following filter(s)?

Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is of lower order, the filter approaches to which of the following filter(s)?

Which two of the following statements are correct?
I. In the short - run, ∆TFC = 0, therefore ∆TC = ∆TVC
II. If decrease in AFC III. If decrease in AFC = increase in AVC, AC remains constant
IV. If decrease in AFC > increase in AVC, then AC increases
Choose the correct answer from the options given below

If hlp(n) denotes the impulse response of a low pass filter with frequency response Hlp(ω), then what is the frequency response of the high pass filter in terms of Hlp(ω)?

Which one of the following combination of rules stands true while preparing schedule of changes in working capital?
1. An increase in current assets increases working capital.
2. An increase in current assets decreases working capital.
3. An increase in current liabilities decreases working capital.
4. An increase in current liabilities increases working capital.

For a Band Pass Filter, the slope of the filter is given as 80dB/decade. The order of the Band Pass Filter is __________

For a Band Pass Filter, the slope of the filter is given as 40dB/decade. The order of the Band Pass Filter is __________