Q1: Applied Thermodynamics ka main focus hota hai:
(A) Theoretical laws sirf
(B) Practical energy conversion systems
(C) Quantum mechanics
(D) Material science
Answer: (B) Practical energy conversion systems
Q2: Steam power plant ka main cycle hota hai:
(A) Otto cycle
(B) Diesel cycle
(C) Rankine cycle
(D) Brayton cycle
Answer: (C) Rankine cycle
Q3: Gas turbine plant ka main cycle hota hai:
(A) Otto cycle
(B) Diesel cycle
(C) Brayton cycle
(D) Rankine cycle
Answer: (C) Brayton cycle
Q4: Internal combustion engines use hotay hain:
(A) Rankine cycle
(B) Brayton cycle
(C) Otto aur Diesel cycles
(D) Carnot cycle
Answer: (C) Otto aur Diesel cycles
Q5: Ideal efficiency of Carnot engine depend karti hai:
(A) Pressure
(B) Temperature limits
(C) Volume
(D) Fuel type
Answer: (B) Temperature limits
Q6: Combined cycle power plant combine karti hai:
(A) Steam & gas turbines
(B) Petrol & diesel engines
(C) Refrigeration & heat pump
(D) Nuclear & solar
Answer: (A) Steam & gas turbines
Q7: Boiler ka function hota hai:
(A) Heat reject karna
(B) Water ko steam mein convert karna
(C) Work output
(D) Pumping
Answer: (B) Water ko steam mein convert karna
Q8: Condenser ka main purpose hota hai:
(A) Steam ko liquid mein convert karna
(B) Work produce karna
(C) Heat addition
(D) Pressure increase
Answer: (A) Steam ko liquid mein convert karna
Q9: Nozzle ka main function hota hai:
(A) Pressure increase
(B) Velocity increase
(C) Heat addition
(D) Work output
Answer: (B) Velocity increase
Q10: Throttling device ka example hota hai:
(A) Nozzle
(B) Turbine
(C) Expansion valve
(D) Compressor
Answer: (C) Expansion valve
Q11: Refrigeration cycle ka main goal hota hai:
(A) Work generation
(B) Heat removal from cold space
(C) Steam generation
(D) Air compression
Answer: (B) Heat removal from cold space
Q12: Air-conditioning system control karta hai:
(A) Sirf temperature
(B) Temperature, humidity aur air quality
(C) Pressure only
(D) Volume only
Answer: (B) Temperature, humidity aur air quality
Q13: Combustion efficiency depend karti hai:
(A) Fuel type
(B) Air-fuel ratio
(C) Flame temperature
(D) Sabhi
Answer: (D) Sabhi
Q14: Exergy analysis ka purpose hota hai:
(A) Energy conservation
(B) Identify system irreversibility
(C) Heat rejection
(D) Work output
Answer: (B) Identify system irreversibility
Q15: Combined cycle efficiency usually hoti hai:
(A) 30–40%
(B) 50–60%
(C) 70–80%
(D) 90–100%
Answer: (C) 70–80%
Q16: Superheated steam use hoti hai:
(A) Turbine efficiency improve karne ke liye
(B) Boiler efficiency improve karne ke liye
(C) Refrigeration
(D) Combustion only
Answer: (A) Turbine efficiency improve karne ke liye
Q17: Heat exchanger ka main function hota hai:
(A) Work production
(B) Heat transfer between two fluids
(C) Pressure increase
(D) Combustion
Answer: (B) Heat transfer between two fluids
Q18: Isentropic efficiency define hoti hai:
(A) Actual work / Ideal work
(B) Ideal work / Actual work
(C) Q/W
(D) W/Q
Answer: (A) Actual work / Ideal work
Q19: Ideal Otto cycle efficiency depend karti hai:
(A) Compression ratio aur γ (specific heat ratio)
(B) Fuel type
(C) Volume only
(D) Pressure only
Answer: (A) Compression ratio aur γ (specific heat ratio)
Q20: Regenerative Rankine cycle ka benefit hota hai:
(A) Net work increase
(B) Efficiency improve
(C) Fuel consumption decrease
(D) Sabhi
Answer: (D) Sabhi