MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Thermal Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Losses which do not influence steam conditions are called external losses. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Losses directly connected with the steam conditions while it is flowing through the turbine are called internal losses. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following statements is TRUE regarding the losses the steam turbines? |
| A. | Impingement losses are a type of internal losses |
| B. | Losses due to shrouding are a type of internal losses |
| C. | Mechanical losses are external losses |
| D. | Losses in exhaust piping are a type of external losses |
| Answer» E. | |
| 4. |
Which of the following losses does not come under Internal losses in steam turbines ? |
| A. | Losses due to wetness of steam |
| B. | Losses in regulating valve |
| C. | Leaving velocity losses |
| D. | Mechanical losses |
| Answer» E. | |
| 5. |
Which of the following in an implication of bleeding process? |
| A. | efficiency and power developed both are increased |
| B. | efficiency is decreased and power developed is increased |
| C. | efficiency and power developed both are decreased |
| D. | efficiency is increased and the power developed is decreased |
| Answer» E. | |
| 6. |
The process of draining steam from the turbine, at specific points during its expansion for heating the feed water is called _____ |
| A. | governing |
| B. | reheating |
| C. | bleeding |
| D. | recycling |
| Answer» D. recycling | |
| 7. |
Which of the following statements regarding reheat factor is TRUE? |
| A. | It is always less than 1 |
| B. | It is always greater than 1 |
| C. | It is always equal to or less than 1 |
| D. | It might be less than one |
| Answer» C. It is always equal to or less than 1 | |
| 8. |
The value of reheat factor doesn t depend on _____ |
| A. | stage efficiency |
| B. | initial condition of steam |
| C. | final pressure |
| D. | atmospheric temperature |
| Answer» E. | |
| 9. |
Which of the following is the correct expression for reheat factor? |
| A. | ( frac{Cumulaive , heat , drop}{Isentropic , enthalpy , drop} ) |
| B. | ( frac{Isentropic , enthalpy , drop}{Cumulaive , heat , drop} ) |
| C. | ( frac{Adiabatic , heat , drop}{Isentropic , enthalpy , drop} ) |
| D. | ( frac{Isentropic , enthalpy , drop}{Adiabatic , heat , drop} ) |
| Answer» B. ( frac{Isentropic , enthalpy , drop}{Cumulaive , heat , drop} ) | |
| 10. |
The curve traced by joining all the state points is called _____ |
| A. | state point curve |
| B. | state point locus |
| C. | state point diagram |
| D. | state point graph |
| Answer» C. state point diagram | |
| 11. |
What is state point ? |
| A. | It is that point on h-s diagram which represents the condition of steam at that instant |
| B. | It is that point on P-v diagram which represents the condition of steam at that instant |
| C. | It is that point on T-s diagram which represents the condition of steam at that instant |
| D. | It is that point on P-s diagram which represents the condition of steam at that instant |
| Answer» B. It is that point on P-v diagram which represents the condition of steam at that instant | |