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Q1. A sample of partially saturated sand had a volume of 95 x 10-6 m3 and a mass of 0.2 kg. After oven drying, its mass was 0.19 kg. Calculate the bulk density, dry density, saturated density, porosity, void ratio, moisture content, degree of saturation and air void ratio of the sample. Assume Gs = 2.6.
Design and draw π- type high pass filter having cut of frequency of 2kHz and load
resistance of 500Ω.
In instrumentation
Identify the following of a rice cooker
Process:
Setpoint:
Final control agent :
Actuation input:
Manipulated variable:
Measured variable:
Process variable:
Measuring means:
What is the equation relating temperature and resistance for an RTD calibrator?
How can i ensure that the temperature inside the calibration unit was the temperature required?
What are some possible sources of error associated with calibration of a temperature measuring device how can they be minimized utilizing the calibration unit?
The p-type base of a crystalline silicon solar cell, 300μm wide, with an electron diffusion length of 400μm, has a perfectly passivated rear surface, with a zero surface recombination velocity. What is the probability that an electron generated near the back surface is collected at the junction ?
in a chocolate packing unit it takes a standard time of 0.01 hour to pack one carton box. the annual demand is 500000 carton boxes. assuming 1% scrap, calculate the number of men and machines required to complete the task if the packing unit is operational for 40 hours per week with 52 weeks in a year.
A 251.0 g/hr stream of liquid methyl alcohol, also called methanol, (CH3OH) at 9.00 atm and 28.0°C was held at constant pressure, vaporized and brought to 585.0°C. At what rate must heat be supplied to this system? Assume that methyl alcohol vapor behaves ideally for the temperature range and pressure given.
In an ideal rankine cycle, steam is generated at 4.1 MPa and 480 degrees C. The condenser is at 32 degrees C. Determine (a) The ideal pump work. (b) The cycle thermal efficiency, (c) For an engine with the same end states, determine its thermal efficiency, steam rate, and map, (d) considering the engine only, assume the brake engine efficiency to be 78%, the generator efficiency to be 92%, the steam flow rate 163,300 kg/hg; compute the output of the combined unit.
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