Power Plant Engineering Mock Test 7

10%

Question 1 of 10

1. A regenerative steam cycle renders ____________

decreased work output per unit mass of steam as well as increased thermal efficiency

decreased work output per unit mass of steam

increased thermal efficiency

increased work output per unit mass of steam

Question 1 of 10

Question 2 of 10

2. If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be?

low

none of the mentioned

high

very high, if the fuel is of low calorific value

Question 2 of 10

Question 3 of 10

3. ‘Fat’ coal means a coal having __________

non-smoking tendency

low ash content

low calorific value

high volatile matter

Question 3 of 10

Question 4 of 10

4. A binary vapour plant consists of ____________

steam turbine

steam condenser

all of the mentioned

mercury boiler

Question 4 of 10

Question 5 of 10

5. Initial pressure of oxygen introduced into the ‘bomb’ of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm.

95-100

60-65

3-5

20-30

Question 5 of 10

Question 6 of 10

6. Combustion in a Combined cycle plant has ______ environmental impact.

little/no

serious

toxic

none of the mentioned

Question 6 of 10

Question 7 of 10

7. Atomising steam to fuel oil ratio in a burner should be around __________

3.5

0.5

2.5

1.5

Question 7 of 10

Question 8 of 10

8. Combined cycle plants have _____________ operation flexibility.

very low

high

low

equal

Question 8 of 10

Question 9 of 10

9. Efficiency of Natural gas fired Combined cycle plants is more than that of coal-fired plants.

true

false

Question 9 of 10

Question 10 of 10

10. Abrasion index of blast furnace coke should be around __________ percent.

Question 10 of 10