MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An economiser is installed in a boiler primarily to ___________ |
| A. | increase steam pressure |
| B. | reduce fuel consumption |
| C. | superheat the steam |
| D. | all of the mentioned |
| Answer» C. superheat the steam | |
| 2. |
When steam after doing work in the cylinder passes into a condenser, the engine is said to be a ___________ |
| A. | slow speed engine |
| B. | vertical steam engine |
| C. | condensing steam engine |
| D. | no-condensing steam engine |
| Answer» D. no-condensing steam engine | |
| 3. |
The actual power supplied by the engine crankshaft is called? |
| A. | indicated power |
| B. | frictional power |
| C. | brake power |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
The theoretical indicator diagram of a simple steam engine is based upon the assumption that ___________ |
| A. | there is no pressure drop due to condensation |
| B. | steam is admitted at boiler pressure & exhausted at condenser pressure |
| C. | the expansion of the steam is hyperbolic |
| D. | all of the mentioned |
| Answer» E. | |
| 5. |
Cut-off ratio is the ratio of? |
| A. | cut-off volume to clearance volume |
| B. | clearance volume to cut-off volume |
| C. | volume at cut-off to swept volume |
| D. | swept volume to volume at cut-off |
| Answer» D. swept volume to volume at cut-off | |
| 6. |
Locomotive boiler is a ___________ |
| A. | single tube, vertical, externally fired & stationary boiler |
| B. | single tube, horizontal, internally fired& stationary boiler |
| C. | multitubular, horizontal, externally fired & stationary boiler |
| D. | multitubular, horizontal, internally fired & mobile boiler |
| Answer» E. | |
| 7. |
A closed vessel made of steel & used for the generation of steam is called a ___________ |
| A. | steam condenser |
| B. | steam boiler |
| C. | steam injector |
| D. | steam turbine |
| Answer» C. steam injector | |
| 8. |
CUT-OFF_RATIO_IS_THE_RATIO_OF??$ |
| A. | cut-off volume to clearance volume |
| B. | clearance volume to cut-off volume |
| C. | volume at cut-off to swept volume |
| D. | swept volume to volume at cut-off |
| Answer» D. swept volume to volume at cut-off | |
| 9. |
The_equivalent_evaporation_is_defined_as?$ |
| A. | the ratio of heat actually used in producing the steam to the heat liberated in the furnace |
| B. | the amount of water evaporated or steam produced in kg of fuel burnt |
| C. | the amount of water evaporated from and at 100 degree C into dry & saturated steam |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
An economiser is installed in a boiler primarily to |
| A. | increase steam pressure |
| B. | reduce fuel consumption |
| C. | superheat the steam |
| D. | all of the mentioned |
| Answer» C. superheat the steam | |
| 11. |
The missing quantity per stroke is equal to? |
| A. | cylinder feed + indicated mass of steam |
| B. | cylinder feed + indicated mass of steam |
| C. | mass of cushion steam + indicated mass of steam |
| D. | mass of cushion steam + cylinder feed |
| Answer» C. mass of cushion steam + indicated mass of steam | |
| 12. |
When steam after doing work in the cylinder passes into a condenser, the engine is said to be a |
| A. | slow speed engine |
| B. | vertical steam engine |
| C. | condensing steam engine |
| D. | no-condensing steam engine |
| Answer» D. no-condensing steam engine | |
| 13. |
The_actual_power_supplied_by_the_engine_crankshaft_is_called? |
| A. | indicated power |
| B. | frictional power |
| C. | brake power |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 14. |
Locomotive boiler is ? |
| A. | single tube, vertical, externally fired & stationary boiler |
| B. | single tube, horizontal, internally fired& stationary boiler |
| C. | multitubular, horizontal, externally fired & stationary boiler |
| D. | multitubular, horizontal, internally fired & mobile boiler |
| Answer» E. | |
| 15. |
Lancashire boiler has _____ internal flue tubes |
| A. | 1 |
| B. | 3 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 16. |
A closed vessel made of steel & used for the generation of steam is called a |
| A. | steam condenser |
| B. | steam boiler |
| C. | steam injector |
| D. | steam turbine |
| Answer» C. steam injector | |
| 17. |
The diameter of a cylindrical shell of a Scotch marine boiler varies from |
| A. | 3.5 to 4.5m |
| B. | 1.5 to 2m |
| C. | 2.5 to 3.5m |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 18. |
The chimney draught varies with? |
| A. | climatic conditions |
| B. | temperature of furnace gases |
| C. | height of chimney |
| D. | all of the mentioned |
| Answer» E. | |
| 19. |
The number of fire tubes in a Cochran boiler are |
| A. | 75 |
| B. | 165 |
| C. | 225 |
| D. | 175 |
| Answer» C. 225 | |
| 20. |
Which of the following is a water tube boiler? |
| A. | Lancashire boiler |
| B. | Cochran boiler |
| C. | Babcock & Wilcox boiler |
| D. | Locomotive boiler |
| Answer» D. Locomotive boiler | |