question_answer

Consider the following statements:

Steam turbines are suitable for use as prime movers for large steam power plants because

1.  A single steam turbine can be designed for a capacity of 1000 MW or more

2. Much higher speed may he possible as compared to a reciprocating engine

3. They are more compact when compared to a gas turbine power plant

4. The maintenance cost and running cost may not increase with years of service.

Which of these statements are correct?

A) 1, 2 and 3                     

B) 2, 3 and 4

C) 1, 2 and 4                     

D) 1, 3 and 4