SSC-JE ME || Power plant 1

In a simple rankine cycle, the heat added to boiler is 75kJ/kg. Entropy at inlet to boiler was 6.88 kJ/kgK which changed to 6.98 kJ/kgK due to heat addition at boiler. The heat removal of the cycle takes place at 27^oC. The efficiency of the cycle is _______%.

Increasing boiler pressure causes which of the following in a Rankine Cycle?

What is the specific steam consumption (in kg/kWh) of the Rankine cycle based on net output if the enthalpies at turbine inlet and exit are 3200 kJ/kg and 2050 kJ/kg respectively. Specific work by pump is 1.5 kJ/kg.

Rankine cycle consists of __________.

Choose the wrong statement about the regenerative vapour power cycle employing bled steam form feed water heating:

If a reheater is added to a Rankine Cycle then usually

For a regenerative Rankine cycle, T-S plot is given. Steam at rate 1kg/s is entering the turbine. At an intermediate stage (pressure P₂) m₁ kg/s steam is extracted by open feed water heater 1. At another intermediate stage (pressure P₃) m₂ kg/s steam is extracted by open feed water heater 2. Which of the following energy balance equation is INCORRECT?

For a Rankine cycle with reheating, which of the following statements are correct?

I. Thermal efficiency will decrease

II. Average temperature of heat addition will increase

III. Steam at turbine exit becomes drier

The constant pressure gas turbine works on