Two sinusoidal signals are known to exist within a given signal, a 5 Vrms 100 Hz signal and a 2 Vrms 3 kHz signal, but only the 100 Hz signal is of interest. If the analog filter from Assignment 5 is used with the same 2 kHz cutoff frequency, what will be the amplitude of both portions of the signal in voltage after filtering? (Hint: Use the plot from Question 7) Are the effects of the 3 kHz signal ever completely removed? (10 pt.)

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.