Afurnace is fired with coal with the following analysis: 36.3% vcm, 49.6% fc, 10.7% ash, 3.4% moisture, 1.2 % n and 5.1% s. its calorific value is 29.5 mj/kg. analysis of the wetted refuse shows 12% c, 65% ash and 23% water. dry air is supplied at 27oc and 1 atm. the stack gases leave at 350oc, 745 mm hg with a partial orsat analysis of 8.71% co2, 1.74% co and 0.35% h2. calculate:

a) % excess air

b) complete orsat analysis

c) cubic meter stack gas/kg coal

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way