Maximum thermal efficiency of boiler may be about __________ percent. (A) 10 (B) 25 (C) 65 (D) 90

Maximum thermal efficiency of boiler may be about __________
percent.
(A) 10
(B) 25
(C) 65
(D) 90
by

1 Answer

Answer :

(D) 90
by

Related questions

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An oil fired boiler is retrofitted to fire coconut shell chips. Boiler thermal efficiency drops from 82% to 70%. What will be the percentage change in energy consumption to generate the same output a) 12% increase b) 14.6% increase c) 17.1% decrease d) 17.1% increase

Description : An oil fired boiler is retrofitted to fire coconut shell chips. Boiler thermal efficiency drops from 82% to 70%. What will be the percentage change in energy consumption to generate the same output a) 12% increase b) 14.6% increase c) 17.1% decrease d) 17.1% increase

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For achieving maximum capacity of the ball mill, the ball charge should be equal to about __________ percent of the ball mill volume. (A) 10 (B) 25 (C) 50 (D) 75

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Water content in the crude oil as it comes out of oil well may be upto __________ percent. (A) 2 (B) 5 (C) 10 (D) 25

Description : Water content in the crude oil as it comes out of oil well may be upto __________ percent. (A) 2 (B) 5 (C) 10 (D) 25

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Description : Carbon Content by weight in air dried wood may be about __________ percent. (A) 10 (B) 25 (C) 50 (D) 80

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A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height. (A) 10-15 (B) 30-40 (C) 70-80 (D) 90-100

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Which statement of the second law of thermodynamics states that no heat engine can have a thermal efficiency of 100 percent?  A. Kelvin-Planck statement  B. Clausius statement  C. Kevin statement  D. Rankine statement

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Carbon content in plain carbon steel is __________ percent. (A) 0.1 to 0.15 (B) 0.35 to 0.45 (C) 0.65 to 0.80 (D) 0.85 to 1.2

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Last Answer : (B) 0.35 to 0.45

150. Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent. (A) 5 (B) 20 (C) 50 (D) 65

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A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60 (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02 (C) CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

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Last Answer : (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02

The term responsivity as it applies to a light detector is best described as ∙ A. the time required for the signal to go from 10 to 90 percent of maximum amplitude ∙ B. the ratio of the diode output current to the input optical power ∙ C. the ratio of the input power to output power ∙ D. the ratio of output current to input current

Description : The term responsivity as it applies to a light detector is best described as ∙ A. the time required for the signal to go from 10 to 90 percent of maximum amplitude ∙ B. the ratio of the diode ... . the ratio of the input power to output power ∙ D. the ratio of output current to input current

Last Answer : the ratio of the diode output current to the input optical power

The termresponsivityasit appliesto a light detectorisbest described as a. the time required for the signal to go from 10 to 90 percent of maximum amplitude b.the ratio ofthediode output currentto opticalinputpower c. the ratio of output current to output power d. the ratio of output current to input current

Description : The termresponsivityasit appliesto a light detectorisbest described as a. the time required for the signal to go from 10 to 90 percent of maximum amplitude b.the ratio ofthediode output currentto ... of output current to output power d. the ratio of output current to input current

Last Answer : b.the ratio ofthediode output currentto opticalinputpower

The efficiency of a pump may be taken as (A) 0.55 (B) 0.60 (C) 0.65 (D) 0.70

Description : The efficiency of a pump may be taken as (A) 0.55 (B) 0.60 (C) 0.65 (D) 0.70

Last Answer : Answer: Option C

Polycaprolactam (Nylon - 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about __________ percent. (A) 50 (B) 75 (C) 90 (D) 99

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Last Answer : (C) 90

Purity of electrical grade aluminium should be ≥ __________ percent. (A) 95 (B) 99.5 (C) 85 (D) 90

Description : Purity of electrical grade aluminium should be ≥ __________ percent. (A) 95 (B) 99.5 (C) 85 (D) 90

Last Answer : (B) 99.5

P2O5 content in triple superphosphate is about __________ percent. (A) 42-50 (B) 15-20 (C) 85-90 (D) 70-75

Description : P2O5 content in triple superphosphate is about __________ percent. (A) 42-50 (B) 15-20 (C) 85-90 (D) 70-75

Last Answer : (A) 42-50

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent. (A) 80 (B) 90 (C) 98 (D) 100

Description : Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent. (A) 80 (B) 90 (C) 98 (D) 100

Last Answer : (C) 98

The amount of benzene present in pure Benzol is about __________ percent. (A) 30 (B) 50 (C) 70 (D) 90

Description : The amount of benzene present in pure Benzol is about __________ percent. (A) 30 (B) 50 (C) 70 (D) 90

Last Answer : (C) 70

A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2. (A) 6 (B) 18 (C) 38 (D) 52

Description : A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2. (A) 6 (B) 18 (C) 38 (D) 52

Last Answer : (B) 18

Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent. (A) 32 (B) 52 (C) 72 (D) 88

Description : Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent. (A) 32 (B) 52 (C) 72 (D) 88

Last Answer : (A) 32