BOE (BOILER OPERATION ENGINEERING) QUESTIONS AND ANSWERS FOR ALL STATS BOARD:-

In this post you we discussed  about the BOE  (BOILER OPERATION ENGINEERING ) short type question answer these question selected by the experienced BOE (BOILER OPERATION ENGINEERING )  which worked in different stats of India and also outside of the country . in these question most of the questions are asking by the diffrent staes of the india like ,  andhra pardesh BOE , GUJRAT BOE ,CHHATTISHGARH BOE , KERALA BOE , UTTAR PRADESH BOE ,JHARKHAND BOE , TAMILNADU BOE , MAHARASTRA BOE , HARYANA  BOE  . these  question answers are helpful for those who  preparing the boe examination for different stats . after preparing these boe question answers you find most of the question answers are asking by the examiner which are given below .

BOE (BOILER OPERATION ENGINEERING) QUESTIONS AND ANSWERS FOR ALL STATS BOARD:-

Q.Economizer of boiler has main function to….
a. Heat up incoming water excess steam
b. Heat up pulverized fuel by exhaust gases
c. Heat up the incoming air by exhaust gases
d. Heat up the incoming water by exhaust gases

Q. In a superheater
a. Pressure rises and temperature drops
b. Temperature rises and pressure drops
c. Temperature rises and pressure remains unchanged

d. Pressure rises and temperature remains the same 

Q. The steam power plant efficiency can be improve by
a. Using large quantity of water
b. Burning large quantity of coal
c. Using high temperature and high pressure steam
d. Decreasing the load on the plant

Q. Vacuum can be measured by using
a. Rotameter
b. Pitot tube
c. U tube manometer
d. Vanturimeter

Q. Electrostatic Precipitator is installed between
a. Induced draft fan and chimney
b. Air preheater and induced draft fan
c. Economizer and air pre heater
d. Boiler furnace and economizer

Q. At which of the following pressure, the enthalpy of evaporation if the steam will be the highest
a. 4 kg/cm2
b. 20 kg/cm2
c. 12 kg/cm2
d. 16 kg/cm2

Q. If the partical pressure of air and steam in a condenser is pa and pb respectively, then according to Dalton, s law the pressure in condenser is equal to
a. Pa-pb
b. Pa+pb
c. (Pa+pb)/2
d. (Pa × pb )

Q. Water at a pressure 4 kg/cm2 and 160 digree Celsius temperature, when exposed to atmosphere will
a. Start boiling
b. Cool down
c. Remains as it was
d. Flash and get converted into steam

Q. Proximity analysis of coal gives the following result:
a. Carbon, hydrogen, nitrogen, sulphur
b. Fixed carbon, ash, volatile matter, moisture
c. Higher calorific value
d. Lower calorific value

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Q. Proper sizing of steam pipe lines helps in minimizing
a. Steam requirements
b. Temperature drops
c. Boiler efficiency
d. Pressure drops

Q. What is the impact on flow and discharged pressure when the impeller of pump is trimmed ?
a. Flow decrease with increase pressure
b. Both flow and pressure increase
c. Both flow and pressure decrease
d . Flow increase with decrease pressure

Q. The maximum heat loss in a boiler occur due to 
a. Unbrunt carbon
b. Dry flue gases
c. Radiation losses
d. Moisture in fuel

Q. In power unit, 1 metric H.P=
a. 746.01 watt
b. 750 watt
c. 735.75 watt
d. 720 watt

Q. 1 kacl=4.187 kj= BTU
a. 1.80
b. 2.205
c. 3.969
d. 3.08

Q.15 digree Celsius=………..digree F
a. 40 digree F
b. 59 digree F
c. 47 digree F
d. 52 digree F

Q. During phase change, heat received by the steam without any change of temperature is known as 
a. Sensible heat
b. Saturation heat
c. Latent heat of evaporation
d. Superheater

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Q. In a boiler system, major part of latent heat is received in the
a. Deaerator
b. Evaporater (water wall )
c. Superheater
d. Economizer

 Q. R.O plant membrane ph should be maintain in range of
a. 1 to 3
b. 4 to 5
c. 6 to 7
d. 7 to 10

Q. Corrosion of Metallic flue gas chimney depends on:
a. Percent of sulphur in the fuel
b. Temperature of exit flue gas from chimney
c. Presence if vanadium pent- oxide in fuel oil
d.all of above

 Q. What will be the proportion by volume of cement, sand and gravel commonly used in power plant in preparation of strongest concrete mixture in that order?
a. 1:3:5
b. 1 :11/2:3
c. 1:2:4
d. 1:4:5

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Q. Low carbon steel contains
a. 0.1 %to 0.27 %carbon
b. 0.6 %to 1.5 %carbon
c. 0.2 %to 0.3 %carbon
d. None of the above

Q. Opacity meter is used to measured
a. Feed water ph
b. Dissolved oxygen
c. Stack emission in SPM
d. Drum conductivity

Q. Steam is compressive vapour and obeys
a. All law of liquids
b. All laws of gases
c. All laws of solids
d. All laws of above

Q. The density of saturated water at 100 digree Celsius
a. 9.58 kg/cm3
b. 9.58 kg/ cm2
c. 958 kg/m3
d. None of the above

Q. At the critical point, the water and steam density becomes
a. Equal
b. Zero
c. 100 kg/cm3
d. None of above

Q. Silica has a tendency to evaporated with steam
a. At temperature> 200
b. At pressure >80 bar
c. At pressure <80 bar
d. None of the above

Q. Pure steam and water are non conductance of electricity but as the impurities increase
a. The conductivity reaming same
b. The conductivity decrease
c. The conductivity increase
d. None of the above

Q. Any pipe is designed by
a. Standard thickness
b. ID  inside impeller
c. Nominal bore
d. None of the above

Q. Any tube designed by
a. Nominal thickness
b. Nominal bore
c. ID inside diameter
d. OD outside diameter

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Hi, all power engineers. I am Joginder Chauhan(B.Tech(Mech.Engg.)BOE/E.M.) I am the founder of the website www.askpowerplant.com. I am also a power plant engineer with over 12+ years of experience in the power sector. I learned about power technologies like AFBC, CFBC, TRAVELLING GRATE, PULSATING GREAT, PF BOILER, WHRS, and many more during this period. My motive for this site is to share my power sector knowledge with every person who belongs to this field; on this website, I share information related to boiler operation, boiler maintenance, turbine operation & maintenance, boiler & turbine question answers, D.M plant, and all topic related to power plant sector please join this website for latest updation regarding power plant ………..thanks ( JOGINDER CHAUHAN )

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