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Saturday, 11 September 2021
Tuesday, 24 August 2021
AKTU AND BETU EXAM 2021-22
POWER SYSTEM ,,TRANSMISSION
Q 1 Transmission of power by ac cables is impossible beyond
a. 35 – 45 km
b. 500 km
c. 300 km
d. 10 – 15 km
Answer
ANSWER: 35 – 45 km
Q 2 Transmission efficiency of a transmission line increases with the ____.
a. decrease in power factor and voltage.
b. increase in power factor and voltage.
c. increase in power factor but decrease in voltage.
d. increase in voltage and decrease in power factor.
Answer
ANSWER: increase in power factor and voltage
Q 3 The value of A parameter of a transmission line
a. Increases with increase in length of line
b. Decreases with increase in line length
c. Is independent of line length
d. None of these
Answer
ANSWER: Increases with increase in length of line
Q4 What is the normal range of angle for the parameter A?
a. 90 °
b. 70 ° - 40 °
c. 40 ° - 10 °
d. 0 - 10 °
Answer
ANSWER: 0 - 10 °
Q5 What happens in a long transmission lines under no load?
a. The receiving end voltage is less than the sending end voltage.
b. The sending end voltage is less then receiving end voltage.
c. The sending end voltage is equal to receiving end voltage.
d. None of these
Answer
ANSWER: The sending end voltage is less then receiving end voltage.
Q6 In the nominal p method which among these are divided into two halves?
a. Series impedance
b. Shunt capacitance
c. Both (A) and (B)
d. None of these
Answer
ANSWER: Shunt capacitance
Q7 A line of what length can be classified as a medium transmission line?
a. 90 – 100 km
b. 50 – 150 km
c. 150 – 200 km
d. Above 200 km
Answer
ANSWER: 50 – 150 km
Q8 What is the power factor angle of the load for maximum voltage regulation?
a. tan-1 (X/R)
b. cos-1 (X/R)
c. tan-1 (R/X)
d. cos-1 (R/X)
Answer
ANSWER: tan-1 (X/R)
Q9 A condenser condenses the steam coming out from_____.
a. Boiler
b. Turbine
c. Economiser
d. Super heater
Answer
ANSWER: Turbine
Q10 Water used in the steam plant is used for cooling in_______.
a. Condenser
b. Turbine only
c. Boiler tube
d. Boiler tubes and turbines
Answer
ANSWER: Condenser
Q11 Air- preheater in a steam power plant_____.
a. Recovers the heat from the flue gases leaving the economiser.
b. Improves combustion rate.
c. Raises the temperature of the furnace gases.
d. All of these.
Answer
ANSWER: All of these.
Q12 The governing principle of steam turbines are ______.
a. Nozzle control governing
b. Throttle governing
c. Bypass governing
d. All of these
Answer
ANSWER: All of these
Q13 ) Turbo alternators run at speeds
a. Constant speed of 3000 rpm.
b. Constant speed of 1000 rpm.
c. A variable speed of above 1000 rpm.
d. None of the above
Answer
ANSWER: A variable speed of above 1000 rpm.
Q14 The reheat factor in a steam turbine depends on
a. Stage efficiency.
b. Initial pressure and temperature.
c. Exit pressure.
d. All of the above.
Answer
ANSWER: All of the above.
Q15 The use of air preheater increase the temp of the air by about______.
a. 50°
b. 20°
c. 5°
d. 30°
Answer
ANSWER: 20°
Q 16 The draught produced by the chimney is______.
a. Forced draught
b. Natural draught
c. Induced draught
d. Balanced draught
Answer Explanation Related Ques
ANSWER: Natural draught
Q17 The pipes carrying the steam are made of ___.
a. Steel
b. Cast iron
c. Aluminium
d. Cobalt
Answer
ANSWER: Steel
Q18 The thermal efficiency of a steam plant is defined as?
a. The ratio of heat equivalent of electrical output to the heat of combustion of
coal.
b. The ratio of heat of combustion of coal to the heat equivalent of electrical
output.
c. The ratio of heat equivalent of mechanical energy transmitted to the turbine shaft
to the (heat of combustion of coal...
d. The ratio of heat of combustion of coal to the heat equivalent of mechanical
energy transmitted to the turbine shaft.
Q19 The thermal efficiency of a steam power station is.......
A.38%
B.28%..
C.40%
D.45%
Q20 Rankine cycle efficiency in a good steam power station may be in the range between........
A.15% - 20%
B.35% - 40%...
C.50% - 60%
D.90% - 95%
Q21 A steam power station requires space........
A.Equal to diesel power station
B.less than diesel power station
C.More than diesel power station
D.None of the above
Q22 The height of chimney in a steam power plant is governed by........
A.Flue gases quantity
B.The draught to be produced
C.Control of pollution
D.Corner of power plant
Q23 The major heat loss in a steam power station occurs in ........
A.Heat chamber
B.Penstock
C.Spillways
D.Condenser
Q24 The cost of fuel transportation is maxmimun in........
A.Hydro-electric power plant
B.Steam power plant..
C.Nuclear power plant
D.None of these
Q25 Standby loss is maximum in........
A.Nuclear power plant
B.Hydro-electric power plant
C.Thermal power plant..
D.Diesel power plant
Q26 The modern steam turbines are
(A) Impulse turbines
(B) Reaction turbines
(C) Impulse-reaction turbines..
(D) None of the above
Q27 Economisers improve boiler efficiency by
(A) 1 to 5 %
(B) 4 to 10 %..
(C) 10 to 12 %
(D) None of these
Q28 In coal preparation plant, magnetic separators are used to remove (A) Dust
(B) Clinkers
(C) Iron particles
(D) Sand
Q29 Load center in a power station is
(A) Center of coal fields
(B) Center of maximum load of equipments
(C) Center of gravity of electrical system
(D) None of the above
Q30 Steam pressure in a steam power station, which is usually kept nowadays is of the order of
(A) 20 kgf/cm2
(B) 50 kgf/cm2
(C) 100 kgf/cm2
(D) 150 kgf/cm2..
Q32 Economizer is used to heat
(A) Air
(B) Feed water
(C) Flue gases
(D) All above
*******************************************************************************************
Thursday, 19 August 2021
AKTU AND BETU MOST IMPOTEN QUESTION ONLINE EXAM 2021 -22 ALL THE BEST ALL STUDNTS
Energy conservation extra MCQ
Saturday, 14 August 2021
AKTU AND BETU ONLINE EXAM -2021 -22 MOST IMPORTAN
Q.1 Which type of fire extinguisher is not suitable for electric fire
(A) Foam extinguisher
(B) Carbon dioxide extinguisher
(C) Soda acid extinguisher
(D) Dry power extinguisher
Q.2 The earth pit should not be located near
(A) Roads
(B) Rail tracks
(C) Pavements
(D) All option are correct
Q.3 In batton wiring the cables are carried on seasoned teak wood perfectly straight and well varnished teak wood batton of thickness not less than?
(A) 1 cm
(B) 3 cm
(C) 2 cm
(D) 4 cm
Q.4 In places where acids and alkalies are present, the type of wiring used is…..
(A) PVC
(B) TRS
(C) VIR
(D) Weather proof
Q.5 In which combination, the electrical appliances are connected at home?
(A) Series
(B) Parallel
(C) Series-parallel
(D) None of these
Q.6 The another name of neutral earthing is
(A) Equipment earthing
(B) System earthing
(C) Solid earthing
(D) Direct earthing
Q.7 Cutting plier use for electrical work must have
: (A) High strength
(B) Insulation
(C) Not corrode
(D) Sharp
Q.8 Which type of wiring having very long life:
(A) Conducting wiring
(B) Casing capping wiring
(C) Batten wiring
(D) Cleat wiring
Q.9 Cheapest system of wiring is:
(A) Causing and capping
(B) Cleat wiring
(C) Batten wiring
(D) Conduit wiring
Q.10 The type of wiring that is highly suitable for a temporary shed is
(A) Cleat wiring
(B) Wooden capping and casting wiring
C) Lead sheathed wiring
(D) Conduit wiring
Q.11 In which one of the following is flexible wire is not used?
(A) T.V
. (B) Table fan
(C) Table light
(D) Cement factory
Q.12 A house has a 5 fan of 70 W each that operate for 16 hours a day and one washing machine of 2000W that operates for 1 hour per day in the month of June. What is the energy consumption (inkWh) of the house in the month of June?
(A) 228
(B) 235.6
(C) 350
(D) 486.6
Q.13 Wiring clips are usually made of:
(A) Copper
(B) Steel
(C) Brass
(D) Aluminium
Q.14 In case of stair case wiring which type of switch is used?
(A) 2 one way switches
(B) 1 one way switches
(C) 2 two way switch
(D) 1 two way switch
Q.15 The switch unit need not be on the what type of wire
: (A) Phase
(B) Neutral
(C) Earth
(D) Any of the options
Q.16 In house wiring which type of insulation is used?
(A) Rubber
(B) P.V.C.
(C) V.I.R
. (D) Paper
Q.17 Replacement of wriing is not easy in which type of wiring….
(A) Conduit system
(B) Lead sheathed
(C) Concealed wiring
(D) Cleat system
Q.18 A building has 3 floor and each floor has 4 fans of 50 W that operates for 12 hours a day and one air conditioner of 3000 W that operates for 2 hours per day in the month of the June. Determine the energy consumption (in kWh) of the building in June.
(A) 512
(B) 525
(C) 756
(D) 504
Q.19 Which of the following is not an indoor lighting?
(A) Residence light
(B) Office light
(C) Industry light
(D) Flood light
Q.20 For what voltage levels are the screwed conduit circuit used?
(A) Less than 250V
(B) Between 250V-600V
(C) Above 600V
(D) None of these
Q.21 The factor on which earth resistance value depends on
(A) Condition of soil
(B) Moisture control of soil
(C) Temperature of soil
(D) All options are correct
Q.22 Earth wire is connected to the
(A) Appliance
(B) Ground
(C) Power house
(D) Transformer
Q.23 At what level of current flow during electric shock death is possible
(A) 1 to 180 milli amp
(B) 50 to 100 milli amp
(C) 10 to 20 milli amp
(D) 20 to 50 milli amp
Q.24 when in dry condition human body resistance is around:
(A) 100K
(B) 10K
(C) 1K
(D) Zero
Q.25 The air delivery of fan is indicated by:
(A) km3/min
(B) mm3/min
(C) m3/min
(D) cm3/min
Q.26 In wiring and winding an Abbreviation for S.W.G.is:
(A) Synthetic winding guard
(B) Simple winding gauge
(C) Standard wire gauge
(D) Single wire guard
Q.27 Calculate the January month electricity bill for a room conducting 40 W lamp working 10hours daily and unit cost is 1rupee.
(A) 13.4 Rs.
(B) 12.4 Rs.
(C) 11.4 Rs.
(D) 10.4 Rs.
Q.28 Which among these is a method of wiring?
i. Joint box
ii. Tee system
iii. Loop in system
(A) Only i
(B) Only ii
(C) Only iii
(D) i, ii & iii
Q.29 Which statement is true, with respect to the motor installation?
(A) Wood work is used for mounting switchgears
(B) All equipment used in power wiring shall be of iron clad
(C) Looping of conductors is usually made
(D) The length of flexible conduit is more than 3m
Q.30 Figure lamp shown in the picture is switched on. From the moment of switching on, how long does it take it take for the lamp to glow?
(A) 3 second because the electric current travels at the velocity of sound/3
(B) About 1 second
(C) About 0.1 second
(D) The time, practically, is zero because the velocity of the propagation of electric current
Q.31 What is an electrical schedule?
i. A list or a plan of a building providing information of number of points in each room
ii. The list of all the electrical components required for a particular room
iii. The list all the electrical components along with their prices
(A) Only i
(B) Only ii
(C) Both ii and iii
(D) None of these
Q.32 What is the factor of safety used for current ratings in a power installation?
(A) 1
(B) 1.5
(C) 1.75
(D) 2
Q.33 What is the maximum length of the flexible conduit in motor installation?
(A) Less than 1.25m
(B) Less than 2.25m
(C) Less than 3.5m
(D) Can exceed not more than 5 m
Q.34 What is meant by contingencies?
i. The list of required components are included in this category
ii. The list of vague and unforeseen items is included in this category
iii. The list of components along with their discounted prices is included in this category
(A) Only i
(B) Only ii (C) Only iii
(D) Both ii and iii
Q.35 Which material is used for wiring continous bus bar?
i. Aluminium
ii. Copper
(A) Only i
(B) Only ii
(C) Both I and ii
(D) None of these
AKTU AND BETU ONLINE MOST IMPORTENT QUESTION EXAM -2021-22
AKTU AND BETU ONLINE MOST IMPORTENT QUESTION
What is the role of breaker house in coal feeding?
a) To break the coal into smaller pieces
b) To separate different sizes of coal
c) To separate the light dust from the coal..
d) To powder the coal
Monday, 9 August 2021
most important @ponit@ NDA@ UPSSC@ SSCGD@AIRFORCE@NAVY@
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◆ ‘नेचर इंडेक्स 2020-2021’ की सूची में विश्व स्तर पर पहला स्थान - चाइनीज अकैडमी ऑफ साइंस (इसके बाद हार्वर्ड विश्वविद्यालय)
◆ ‘नेचर इंडेक्स 2020-2021’ की सूची में भारत में भारतीय विश्वविद्यालयों में पहला स्थान - भारतीय विज्ञान संस्था (IISc) बैंगलुरु (इसके बाद CSIR, TIFR)
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◆ _ ने संस्था में उत्कृष्टता केंद्र के रूप में ‘सतत गतिशीलता केंद्र’ (Centre of Sustainable Mobility) स्थापित किया है - इंद्रप्रस्थ सूचना प्रौद्योगिकी, दिल्ली (IIIT दिल्ली)
◆ 27 मार्च और 28 मार्च 2021 को _ द्वारा पहली बार आभासी ‘अंतरराष्ट्रीय ओडिशा पर्ब-2021’ का आयोजन किया गया - ओडिया समाज, नई दिल्ली
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◆ एशिया का एकमात्र रेंजर (वन रक्षक) जिसने इंटरनेशनल यूनियन फॉर कंजर्वेशन ऑफ नेचर (IUCN) और वर्ल्ड कमिशन ऑन प्रोटेक्टेड एरियाज़ (WCPA) द्वारा दिया गया प्रतिष्ठित ‘इंटरनेशनल रेंजर अवार्ड’ जीता - महिंदर गिरी (राजाजी टाइगर रिज़र्व का रेंज ऑफिसर)
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◆ ‘एक भारत श्रेष्ठ भारत’ के अंतर्गत, गोवा राज्य और _ राज्य की जोड़ी तैयार की गई है - झारखंड
◆ आंध्र प्रदेश के नए राज्य चुनाव आयुक्त - नीलम सावहनी
◆ उत्तर प्रदेश के मुख्यमंत्री योगी आदित्यनाथ ने __ में ‘शहीद अशफाक उल्ला खान प्राणी उद्यान’ का उद्घाटन किया - गोरखपुर (पूर्वांचल में पहला चिड़ियाघर)
◆ _ सरकार 100 नर्सरी क्रीडा अकादमियों की स्थापना करेगी - राजस्थान
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◆ भारतीय अंतरिक्ष अनुसंधान संगठन (ISRO) ने 28 मार्च 2021 को श्रीहरिकोटा से GSLV-F10 रॉकेट से '______' नामक पृथ्वी अवलोकन उपग्रह को प्रक्षेपित किया, जिसे पृथ्वी के भूमध्य रेखा से लगभग 36,000 किलोमीटर ऊपर भू-समकालिक कक्षा में रखा गया है - 'GISAT-1'
🟥 सामान्य ज्ञान
◆ रोमानिया - राजधानी: बुखारेस्ट; मुद्रा: रोमानियाई ल्यू
◆ रूस - राजधानी: मास्को; मुद्रा: रूसी रूबल
◆ रवांडा - राजधानी: किगाली; मुद्रा: रवांडन फ्रैंक
◆ सऊदी अरब - राजधानी: रियाद; मुद्रा: सऊदी रियाल
◆ सेनेगल - राजधानी: डकर; मुद्रा: सीएफए फ्रैंक
◆ सेशेल्स - राजधानी: विक्टोरिया; मुद्रा: सेशेलोइस रुपया
◆ सिंगापुर - राजधानी: सिंगापुर; मुद्रा: सिंगापुR
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Thursday, 29 July 2021
ENERGY CONSEVATION -2 MCQ MOST IMPORTENT QUESTION
https://lvnotsiasupscupssc.blogspot.com/2021/07/energy-consevation-2-mcq-most-importent.html
Objective Type
Each question carries One mark
1. The energy sources, that are either found or stored in nature are
a) Secondary Energy Sources
b) primary Energy Sources
c) both (a) and (b)
d) none of the above
2. Natural Gas contains ?
a) 95-99% methane
) 95-99% Ethane
c) 95-99% methane & ethane mix
d) None
3. Inexhaustible energy sources are known as
a) commercial Energy
b) renewable Energy
c) primary energy
d) secondary energy
Energy
AUDIT MCQ
11. The energy management function is generally vested in –
(a) Senior Management
(b) One energy manager or co-ordinator
(c) Distributed among number of middle manager
d) (b) & (c) together
12. The objective of energy management includes
a Minimising energy costs
b) Minimising waste
c) Minimising environmental degradation
d) All the above
13. The ratio of current year‟s production to the reference year‟s production is called as
a) Demand factor
b) Production factor
c) Utilisation factor
d) load factor
14. Replacement of steam based hot water generation by solar system is an example of
a) Matching energy usage to the requirement
b) Maximising system efficiency
c) Energy substitution
d) Performance improvement
15. One unit of electricity is equivalent to kcal heat units
.
a) 800
b)860
c) 400
e) 680
16. The benchmarking parameter for air conditioning equipment is
a) kW/Ton of Refrigeration
b) kW/ kg of refrigerant handled
c) kcal/m3 of chilled water
d) Differential temperature across chiller
17. The percentage of energy saved at the current rate of use, compared to the reference year rate of use, is called
a) Energy Utilization
b) Energy Performance
c) Energy Efficiency
d) None
18. Which instrument is used to monitor O2, CO in flue gas? (EA)
a) Combustion analyzer
b) Power analyzer
c) Pyrometer
d) Fyrite
19. Lux meter is used to measure……
a) Illumination level
b) Sound intensity and illumination level
c) Harmonics
d) Speed
20. For a cement plant the parameter, “kWh/MT of clinker “indicates
a) Energy Index parameter
b) Utility factor
c) Production factor
d) Load factor
21. Energy manager should be well versed with
a) Manufacturing and processing skills
b) Managerial and technical skills
c) Technical and marketing skills
d) Managerial and commercial skills
22. An energy policy does not include
a) Target energy consumption reduction
b) Time period for reduction
c) Declaration of top management commitment
d) Future production projection
23. CO2 measurement of Fyrite kit is based on
a) Weight basis (dry)
b) Volume basis (dry
)
c) Weight basis (wet)
d) Volume basis (wet)
24. Non-contact speed measurements can be carried out by
a) Tachometer
b) Stroboscope
c) Oscilloscope
d) Speedometer
25. The tool used for performance assessment and logical evaluation of avenues for improvement in Energy management and audit is
a) Fuel substitution
b) Monitoring and verification
c) Energy pricing
d) Bench marking
26. Infrared thermometer is used to measure
a) Surface temperature
b) Flame temperature
c) Flue gas temperature
d) Hot water temperature
27. Find out the „odd‟ among the following choices for fuel substitution for the industrial sector of India.
a) LDO with LSHS
b) Coal with rice husk
c) Natural gas for fertilizer plant
d) LPG for soft coke
28. The various types of the instruments, which are required during audit need to be
a) Easy to carry
b) Easy to operate
c) Inexpensive
d) All (a) to (c)
29. Air velocity in ducts can be measured by using and manometer
a) Orifice meter
b) Borden gauge
c) Pitot tube
d) Anemometer
30. An energy audit team is formed during
a) post audit phase
b) audit phase
c) pre-audit phase
d) the time of study
31. Which of the following is not part of energy monitoring
a) data recording
b) data analysis
c) data reporting
d) energy efficiency equipment financing
32. The energy sources that are either found or stored in nature are
a) Secondary Energy Sources
b) Primary Energy Sources
c) both (a) and (b)
d) none of the above
33. Which of the following is commercial energy source?
a) Electricity
b) Coal
c) Oil
d) All the above
34. Inexhaustible energy sources are known as
a) commercial Energy
b) renewable Energy
c) primary energy
d) secondary energy
Energy Managers & Energy Auditors
35. Energy consumption per unit of GDP is called as:
a) Energy Ratio
b) Energy intensity
c) Per capita consumption
d) None
36. “The judicious and effective use of energy to maximise profits and enhance competitive positions”. This can be the definition of:
a) Energy conservation
b) Energy management
c) Energy policy
d) Energy Audit
Energy Scenario
Part-I: Objective type questions and answers
https://lvnotsiasupscupssc.blogspot.com/2021/07/energy-consevation-2-mcq-most-importent.html
1. The energy sources, that are either found or stored in nature are
a) Secondary Energy Sources
b) Primary Energy Sources
c) both (a) and (b
)
d) none of the above
2. Which of the following is commercial energy source?
a) Electricity
b) Coal
c) Oil
d) All the above
3. Inexhaustible energy sources are known as
a) commercial Energy
b) renewable Energy
c) primary energy
d) secondary energy
4. Which country has the largest share of the global coal reserves?
a) Russia
b) China
c) USA
d) India
5. The % of gas reserves for Russian Federation, when compared to world reserve is considered at
a) 10 % of World reserve
b) 20 % of World reserve
c) 30 % of World reserve
d) 40 % of World reserve
6.
World oil reserves are estimated to last over
a) 45 years
b) 60 years
c) 200 years
d) 75 years
energy scenario
Energy Managers & Energy Auditors
https://lvnotsiasupscupssc.blogspot.com/2021/07/energy-consevation-2-mcq-most-importent.html
7. World gas reserves are estimated to last over
a) 45 years
b) 65 years
c) 200 years
d) 75 years
8. The global primary energy consumption (2002) was equivalent to
a) 21,842 Mtoe
b) 15,360 Mtoe
c) 9405 Mtoe
d) 12,396 Mtoe
9. The primary energy consumption of India is
a) 1/29 of the world
b) 1/16 of the world
c) 1/7 of the world
d) 1/20 of the world
10. The world average per person energy consumption is equivalent to tonnes of coal
a) 3
b) 2.2
c) 4.5
d) 1.1
11. Which fuel dominates the energy mix in Indian energy scenario?–
a) Oil
b) Natural gas
c) Coal
d) Nuclear
12. The fourth largest producer of coal and lignite in the world is (EM/EA)
a) USA
b) Russia
c) India
d) China
13.
Indian per capita energy consumption is of the world average
.
a) 4%
b) 20%
c) 1%
d) 10%
energy scenario - revise -2
2
Energy Managers & Energy Auditors
14. Energy consumption per unit of GDP is called as:
a) Energy Ratio
b) Energy intensity
c) Per capita consumption
d) None
15. India’s energy intensity is times of world average.
a ) 1.5
b) 2.5
c) 3.6
d) 10
16. India’s current percentage peak demand shortage for electricity is: (EM/EA)
a) 1%
b) 3%
c) 10%
d) 14%
17. Name the Act, which is proposed to bring the qualitative transformation of the electricity sector:
a) Regulatory Commission Act 1998
b) Indian Electricity Act 1910
c) Supply Act 1948
d ) Electricity Act 2003
18. Which of the following is highest contributor to the air pollution?
a) Carbon Monoxide
b) Hydrocarbons
c) Sulphur Oxides
d) Particulates
19. Projected temperature increase in degree centigrade 2100 due to climate change is:
a) 2
b) 4
c) 6
d) 8 Increase
20.
Acid rain is caused by the release of the following components from combustion of fuels.
a) SOx and NOx
b) SOx and CO2
c) CO2 and NOx
d) H2O
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