Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part4 : 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.The crown of the fire box is made hemispherical in order to |
| give maximum space |
| give maximum strength |
| withstand pressure inside boiler , |
| resist intense heat in fire box |
| enable easy,manufacture. |
2.The diameters of fire tubes and superheaer tubes in locomotive boiler are |
| 47.5 mm, 130 mm |
| 32.5 mm, 180 mm |
| 65.5 mm, 210 mm |
| 24.5 mm, 65 mm |
| opt 5 |
3.In locomotive boiler, maximum steam pressure is limited to |
| 1 kg/cm2 |
| 5 kg/cm2 |
| 10 kg/cm2 |
| 18 kg/cm2 |
| 31 kg/cm2. |
4.Hard coke is produced by carborisation of coal at |
| atmospheric temperature |
| 500-600�C |
| 70O-850�C |
| 95O-1100�C |
| 120O-1500�C. |
5.The water tubes in a babcock and wilcox boiler are |
| horizontal |
| vertical |
| inclined |
| horizontal and inclined |
| vertical and inclined. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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