A standard penetration test was carried out in a normally consolidated sand at 7.62 m depth where the N60 was determined to be 28. The unit weight of the sand is 17.29 kN/m3 , and the grain-size distribution suggests that D50 5 1.2 mm and Cu 5 3.2. The age of the soil since deposition is approximately 5000 years. Determine the relative density using the different correlations discussed in Section 3.15 [i. e., Eqs. (3.21), (3.22), (3.23), (3.24), and (3.28)].

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k