Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.Water boils when its vapour pressure |
| equals that of the surroundings |
| equals 760 mm of mercury |
| equals to atmospheric pressure |
| equals the pressure of water in the con-tainer |
| boiling has ^nothing to do with vapour pressure. |
22.In a throttling process |
| heat transfer takes place |
| work is done by the expanding steam |
| internal energy of steam changes |
| all of the above |
| none of the above. |
23.The increase in pressure |
| lowers the boiling point of a liquid |
| raises the boiling point of a liquid |
| .does not affect the boiling point of a liquid |
| reduces its volume |
| none of the above. |
24.In a throttling process |
| steam temperature remaisn constant |
| steam pressure remains constant |
| steam enthalpy remains constant |
| steam entropy remains constant |
| steam volume remains constant. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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