Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part3 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Efficiency of a thermal cycle increases by |
| regeneration |
| reheating of steam |
| both (a) and (b) |
| cooling of steam |
| none of the above. |
2.Efficiency of rankine cycle can be increased by |
| decreasing initial steam pressure and temperature |
| increasing exhaust pressure |
| decreasing exhaust pressure |
| increasing the expansion ratio |
| increasing number of regenerative heaters. |
3.Cochran boiler is a |
| horizontal fire-tube boiler |
| horizontal water-tube boiler |
| veritcal water-tube boiler |
| vertical fire tube boiler |
| forced circulating boiler. |
4.The change in internal energy in steam engines equals to |
| work done during the rankine cycle ; |
| work done during compression. |
| work done during adiabatic expansion |
| change in enthalpy |
| none of the above. |
5.Which of the following gases has the highest calorific value |
| producer gas |
| coal gas. |
| water gas |
| blast furnace gas |
| coke oven gas. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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