MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If q represents the work output, r represents the work input, Q represents the heat input, the efficiency n in terms of q & r is given by? |
| A. | n = (q-r)/Q |
| B. | n = ( q+r)/Q |
| C. | n = (qr)/Q |
| D. | n = (qr x qr)/Q |
| Answer» B. n = ( q+r)/Q | |
| 2. |
If Q represents the heat input, P represents the heat output; the efficiency n in terms of Q & P is given by? |
| A. | n = QP |
| B. | n = (Q-P)/Q |
| C. | n = (P-Q)/Q |
| D. | n = Q/(Q-P) |
| Answer» C. n = (P-Q)/Q | |
| 3. |
If h1 & h10 are the enthalpies at the inlet & at the exhaust, s1 & s10 are the enthalpies at the inlet & exhaust, the mean temperature of heat addition, Tml with regeneration is? |
| A. | (h<sub>1</sub> + h<sub>10</sub>)/(s<sub>1</sub> + s<sub>10</sub>) |
| B. | (h<sub>1</sub> + h<sub>10</sub>)/(s<sub>1</sub> s<sub>10</sub>) |
| C. | (h<sub>1</sub> h<sub>10</sub>)/(s<sub>1</sub> + s<sub>10</sub>) |
| D. | (h<sub>1</sub> h<sub>10</sub>)/(s<sub>1</sub> s<sub>10</sub>) |
| Answer» E. | |
| 4. |
What effect does the heating of feedwater by steam bled from the turbine has on the Rankine Cycle? |
| A. | it rankinises the Rankine Cycle |
| B. | it carnotinises the Rankine Cycle |
| C. | it reheats the Rankine Cycle |
| D. | none of the mentioned |
| Answer» C. it reheats the Rankine Cycle | |