MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Which of the following statements is FALSE about double-pass condensers? |
| A. | The water flows in one direction through some tubes and returns through the remainder |
| B. | Exhaust steam flows through the tubes, while cooling water passes over the outer surface of the tubes |
| C. | It is a type of surface condenser |
| D. | Cooling water doesn’t come in contact with the exhaust steam |
| Answer» C. It is a type of surface condenser | |
| 2. |
Which of the following statements is FLASE about steam condensers? |
| A. | Jet condensers are cheaper than surface condensers |
| B. | Cooling water comes direct contact with the exhaust steam in jet condensers |
| C. | Cooling water does not come in direct contact with exhaust steam in surface condensers |
| D. | Jet condensers are further classified into single-pass and double-pass condensers |
| Answer» E. | |
| 3. |
Which of the following statements is TRUE about single-pass condenser? |
| A. | It is a type of jet Condenser |
| B. | The flow of water is in one direction only |
| C. | The water flows in one direction through some tubes and returns through the remainder |
| D. | It is not used to condense steam |
| Answer» C. The water flows in one direction through some tubes and returns through the remainder | |
| 4. |
Cooling water is sprayed into the exhaust steam in _____ |
| A. | steam condensers |
| B. | surface condensers |
| C. | jet condensers |
| D. | jet condensers and high condensers |
| Answer» D. jet condensers and high condensers | |
| 5. |
Steam condensers are classified into _____ |
| A. | jet condensers and fast condensers |
| B. | jet condensers and surface condensers |
| C. | high condensers and surface condensers |
| D. | slow condensers and jet condensers |
| Answer» C. high condensers and surface condensers | |
| 6. |
Discharging condensate to hot well improves plant efficiency because _____ |
| A. | condensate is not wasted |
| B. | condensate cools down faster in the hot well |
| C. | feed water for boiler is taken from the hot well |
| D. | it increases the pressure in the hot well |
| Answer» D. it increases the pressure in the hot well | |
| 7. |
Which of the following is NOT an element of a steam condensing plant? |
| A. | Supply of cooling water |
| B. | Turbine |
| C. | Condenser |
| D. | Wet air pump |
| Answer» C. Condenser | |
| 8. |
Sub-atmospheric pressure is also called _____ |
| A. | Gauge pressure |
| B. | Absolute pressure |
| C. | Vacuum pressure |
| D. | High altitude pressure |
| Answer» D. High altitude pressure | |
| 9. |
Steam condensers help in maintaining high back pressure on the exhaust side of the piston of a steam engine. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Steam condenser converts steam into water. |
| A. | True |
| B. | False |
| Answer» B. False | |