Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.Carbonisation of coal is the process of |
| pulverising coal in inert atmosphere |
| heating wood in a limited supply of air at temperatures below 300�C |
| strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel |
| binding the pulverised coal into brickettes |
| enriching carbon in the coal. |
17.On Mollier chart, flow through turbine is represented by ' |
| horizontal straight line |
| vertical straight line |
| straight inclined line |
| curved line |
| none of the above. |
18.The specific volume of steam with increase in pressure decreases |
| linearly |
| slowly first and then rapidly |
| rapidly first and then slowly |
| inversely |
| none of the above. |
19.On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by |
| horizontal straight line |
| vertical straight line |
| straight inclined line |
| curved line |
| none of the above. |
20.The coal requirement per kW hour generation in the thermal power plant is of the order of |
| 0.1 to 0.2 kg |
| 0.2 to 0.4 kg |
| 0.6 to 0.8 kg |
| 1.0 to 1.5 kg |
| 1.5 to 2 kg. |
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