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The efficiency of Diesel cycle depends upon

(A) Temperature limits
(B) Pressure ratio
(C) Compression ratio
(D) Cut-off ratio and compression ratio

The efficiency of the Carnot cycle is (where T₁and T₂= Highest and lowest temperature during the cycle)

(A) (T₁/T₂) - 1
(B) 1 - (T₁/T₂)
(C) 1 - (T₂/T₁)
(D) 1 + (T₂/T₁)

The gas in cooling chamber of a closed cycle gas turbine is cooled at

(A) Constant volume
(B) Constant temperature
(C) Constant pressure
(D) None of these

When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called

(A) Wood charcoal
(B) Bituminous coal
(C) Briquetted coal
(D) None of these

The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that

(A) Carnot cycle can't work with saturated steam
(B) Heat is supplied to water at temperature below the maximum temperature of the cycle
(C) A Rankine cycle receives heat at two places
(D) Rankine cycle is hypothetical