Engineering Thermodynamics Producer gas is obtained by Passing air and a large amount of steam over waste coal at about 650°C Carbonization of bituminous coal Passing steam over incandescent coke Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing air and a large amount of steam over waste coal at about 650°C Carbonization of bituminous coal Passing steam over incandescent coke Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carbonization of coal consists of None of these Drying and crushing the coal to a fine powder Moulding the finely ground coal under pressure with or without a binding material Heating the wood with a limited supply of air to temperature not less than 280°C None of these Drying and crushing the coal to a fine powder Moulding the finely ground coal under pressure with or without a binding material Heating the wood with a limited supply of air to temperature not less than 280°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) (v1 + v2)/v1 v1/v2 (v1 + v2)/v2 v2/v1 (v1 + v2)/v1 v1/v2 (v1 + v2)/v2 v2/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a free expansion process Heat transfer is zero Work done is zero Work done is zero but heat increases Both (A) and (B) above Heat transfer is zero Work done is zero Work done is zero but heat increases Both (A) and (B) above ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is heated at constant volume, the heat supplied Both (A) and (B) Does some external work during expansion None of these Increases the internal energy of the gas and increases the temperature of the gas Both (A) and (B) Does some external work during expansion None of these Increases the internal energy of the gas and increases the temperature of the gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about 10 × 10⁵ kilo joules 100 × 10⁵ joules 1 × 10⁵ joules 10 × 10⁵ joules 10 × 10⁵ kilo joules 100 × 10⁵ joules 1 × 10⁵ joules 10 × 10⁵ joules ANSWER DOWNLOAD EXAMIANS APP
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