Compressors, Gas Turbines and Jet Engines The blades of gas turbine are made of High alloy steel Carbon steel Stainless steel High nickel alloy High alloy steel Carbon steel Stainless steel High nickel alloy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines It is not possible to use closed gas turbine cycle in aeronautical engines because It is bulky None of these It is inefficient It requires cooling water for its operation It is bulky None of these It is inefficient It requires cooling water for its operation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Compressor efficiency Volumetric efficiency Compression ratio Expansion ratio Compressor efficiency Volumetric efficiency Compression ratio Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In n₁ and n₂ are the indices of compression for the first and second stage of compression, then the ratio of work-done on the first and second stages (W₁/W₂) with perfect intercooling is given by W₁/W₂ = n₂(n₁ - 1)/n₁(n₂ - 1) W₁/W₂ = n₁/n₂ W₁/W₂ = n₂/n₁ W₁/W₂ = n₁(n₂ - 1)/n₂(n₁ - 1) W₁/W₂ = n₂(n₁ - 1)/n₁(n₂ - 1) W₁/W₂ = n₁/n₂ W₁/W₂ = n₂/n₁ W₁/W₂ = n₁(n₂ - 1)/n₂(n₁ - 1) ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during Isothermal compression Isentropic compression Polytropic compression None of these Isothermal compression Isentropic compression Polytropic compression None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio is used in gas turbines To save fuel To increase the output To increase the efficiency To reduce the exit temperature To save fuel To increase the output To increase the efficiency To reduce the exit temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS