UP BOE 2014 OLD QUESTION WITH SOLUTION
#1. The object of producing draught in a boiler is (UP_2014_P_2)
#2. In water tube boiler (UP_2014_P_2)
#3. In a glass tube type water indicator for a boiler, one end of the tube is connected to the water space and the other end is connected to........... (UP_2014_P_2)
#4. Which of the following statement is wrong?
#5. The natural draught is produced by(UP_2014_P_2)
#6. A safety valve usually employed with stationary boilers is (UP_2014_P_2)
Stationary boilers typically use a combination of lever safety valves, dead weight safety valves, and high steam and low water safety valves. This is because each type of valve has its own strengths and weaknesses, and using a combination of valves can help to ensure that the boiler is protected from overpressure.
#7. The chimney draught varies with (UP_2014_P_2)
#8. The performance of boiler is measured by the (UP_2014_P_2)
#9. The maximum heat loss in a boiler occurs due to (UP_2014_P_2)
#10. Which of the following is not a boiler mounting? (UP_2014_P_2)
#11. Which of the following are the boiler accessories? (UP_2014_P_2)
#12. The ability of a material to resist softening at high temperature is known as .... (UP_2014_P_2)
#13. Killed steels are those steels (UP_2014_P_2)
#14. Corrosion resistance of steel is increased by the addition of (UP_2014_P_2)
#15. Manganese in steel increases its (UP_2014_P_2)
#16. Brinell hardness tester uses a steel ball of size (UP_2014_P_2)
#17. In arc welding, eyes need to be protected against (UP_2014_P_2)
#18. The gases used in tungsten inert gas welding are (UP_2014_P_2)
#19. In resistance welding, voltage used for heating is (UP_2014_P_2)
#20. Seam welding is (UP_2014_P_2)
#21. Generally water pipe lines are designed with water velocity (UP_2014_P_2)
#22. In indirect steam heating, the heat utilized for heating application (UP_2014_P_2)
#23. Orsat meter is used for (UP_2014_P_2)
#24. Sulphur content of fuel is very important to the plant operator because it (UP_2014_P_2)
#25. Name the fan more suitable for high pressure application (UP_2014_P_2)
#26. Turndown Ratio of a burners is the ratio of (UP_2014_P_2)
#27. ESP works on the principle of (UP_2014_P_2)
#28. A solution having 4 pH is more acidic than a solution of 7 pH (UP_2014_P_2)
#29. Demineralisation of water is the process to remove (UP_2014_P_2)
#30. A rise in conductivity in boiler feed water indicate (UP_2014_P_2)
#31. Hooke's law holds good up to ......(UP_2014_P_1)
#32. If equal and opposite forces applied to a body tend to elongate it, the stress so produced is called (UP_2014_P_1)
#33. Modulus of Rigidity is defined as the ratio of ......(UP_2014_P_1)
#34. The pressure at which the latent heat of vaporisation is zero is ........(UP_2014_P_1)
#35. A thin shell of diameter d, thickness t and length is subjected to an internal pressure p. The circumferential stress in the shell is .....(UP_2014_P_1)
#36. Super heating of steam is done at.........(UP_2014_P_1)
When steam is superheated, its enthalpy remains constant, but its temperature and volume increase. This is because the heat added to the steam is used to increase its internal energy, not to do work.
Superheating of steam is done for a variety of reasons, including to:
- Increase the efficiency of steam turbines
- Reduce the risk of condensation in steam pipes
- Improve the heat transfer capabilities of steam
Therefore, the answer is (d) Constant enthalpy.
#37. If the partial pressure of air and steam in a condenser be pa and pb respectively, then according to Dalton's law, the pressure in condenser is equal to .............(UP_2014_P_1)
#38. Water at pressure 4 kg/cm2 and 160 °C temperature, when exposed to atmosphere will.............(UP_2014_P_1)
#39. Efficiency of a thermal cycle increases by
#40. For burning of 1 kg of carbon to CO as per chemically correct combustion, the amount of air required (UP_2014_P_1)
#41. Ultimate analysis of fuel determine the percentage of (UP_2014_P_1)
#42. Incomplete combustion can be best judged by (UP_2014_P_1)
#43. In water wall furnace the heat is transferred to water wall by (UP_2014_P_1)
#44. LMTD (log mean temperature difference) in case of counter flow compared to parallel flow heat exchanger is
#45. For industrial process heating the best quality of steam is (UP_2014_P_1)
#46. Proper sizing of steam pipe lines helps in minimizing (UP_2014_P_1)
#47. The parameter used by ASME to define fans, blowers and compressors (UP_2014_P_1)
#48. The type of control gives maximum benefit for fan application for energy saving point of view is (UP_2014_P_1)
#49. What is the impact on flow and discharge pressure when the impeller of a pump is trimmed (UP_2014_P_1)
#50. if the speed of a centrifugal pump is doubled, it power consumption will become (UP_2014_P_1)
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