List of top Basic Engineering and Science Questions on Fuels and Combustion

Adsorption of acetone from aqueous solution on activated carbon can be represented by the Langmuir equation: \[ \frac{q}{C} = \frac{1}{0.146} + \frac{0.190}{C} \] where \( q \) is the adsorbate loading mol/kg, and \( C \) is solute concentration in aqueous solution mol/m³. The maximum adsorbate loading in kg acetone/kg carbon is

Favourable adsorption isotherms are those

Which one of the following adsorbents is preferred for adsorbing components from aqueous solutions and moist gases because of its poor affinity with water?

A mixture of toluene (40%) and benzene (60%) is fed to the distillation column; recovery of benzene is 20% at the top. What is the ratio of the flow rate of benzene from Distillate to the bottoms? (Based on 1000 Kg of feed)?

The Sun’s surface at 5800 K emits radiation at a wavelength of 0.5 \(\mu m\). A furnace at 300°C will emit through a small opening, radiation at a wavelength of nearly —————.

In a completely opaque medium, if 50 percent of the incident monochromatic radiation is absorbed, which of the following statements are CORRECT?
- (P) 50 percent of the incident radiation is reflected
- (Q) 25 percent of the incident radiation is reflected
- (R) 25 percent of the incident radiation is transmitted
- (S) No incident radiation is transmitted

Which one of the following is not a primary fuel?