51. Orsat meter is used for
(a) gravimetric analysis of the flue gases
(b) volumetric analysis of the flue gases
(c) mass flow of the flue gases
(d) measuring smoke density of flue gases
(e) none of the above.
Ans: b
52. Alkaline pyrogallate is used in Orsat's apparatus for absorption of
(a) C02
(b) CO
(c) 02
(d) N2
(e) none of the above.
Ans: c
53. An ideal regenerative cycle is
(a) equal to carnot cycle
(b) less than carnot cycle
(c) more than carnot cycle
(d) could be anything
(e) none of the above.
Ans: b
54. Efficiency of rankine cycle can be increased by
(a) decreasing initial steam pressure and temperature
(b) increasing exhaust pressure
(c) decreasing exhaust pressure
(d) increasing the expansion ratio
(e) increasing number of regenerative heaters.
Ans: a
55. Cochran boiler is a
(a) horizontal fire-tube boiler
(b) horizontal water-tube boiler
(c) veritcal water-tube boiler
(d) vertical fire tube boiler
(e) forced circulating boiler.
Ans: d
56. Lancashire 'boiler is a
(a) stationary fire tube boiler
(b) stationary water tube boiler
(c) water tube boiler with natural/forced circulation
(d) mobile fire tube boiler
(e) none of the above.
Ans: a
57. Efficiency of a thermal cycle increases by
(a) regeneration
(b) reheating of steam
(c) both (a) and (b)
(d) cooling of steam
(e) none of the above.
Ans: c
58. One kilowatt-hour energy is equivalent to
(a) 1000 J
(b) 360 kJ
(c) 3600 kJ
(d) 3600 kW/sec
(e) 1000 kJ.
Ans: c
59. Which of the following gases has the highest calorific value
(a) producer gas
(b) coal gas.
(c) water gas
(d) blast furnace gas
(e) coke oven gas.
Ans: b
60. 100% efficiency of a thermal cycle cannot be achieved because of
(a) frictional losses
(b) it is not possible to achieve 0°K temperature
(c) leakage
(d) non-availability of ideal substance
(e) none of the above.
Ans: b
Read More Steam Boilers & Nozzles and Turbines Questions and Answers
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(a) gravimetric analysis of the flue gases
(b) volumetric analysis of the flue gases
(c) mass flow of the flue gases
(d) measuring smoke density of flue gases
(e) none of the above.
Ans: b
52. Alkaline pyrogallate is used in Orsat's apparatus for absorption of
(a) C02
(b) CO
(c) 02
(d) N2
(e) none of the above.
Ans: c
53. An ideal regenerative cycle is
(a) equal to carnot cycle
(b) less than carnot cycle
(c) more than carnot cycle
(d) could be anything
(e) none of the above.
Ans: b
54. Efficiency of rankine cycle can be increased by
(a) decreasing initial steam pressure and temperature
(b) increasing exhaust pressure
(c) decreasing exhaust pressure
(d) increasing the expansion ratio
(e) increasing number of regenerative heaters.
Ans: a
55. Cochran boiler is a
(a) horizontal fire-tube boiler
(b) horizontal water-tube boiler
(c) veritcal water-tube boiler
(d) vertical fire tube boiler
(e) forced circulating boiler.
Ans: d
56. Lancashire 'boiler is a
(a) stationary fire tube boiler
(b) stationary water tube boiler
(c) water tube boiler with natural/forced circulation
(d) mobile fire tube boiler
(e) none of the above.
Ans: a
57. Efficiency of a thermal cycle increases by
(a) regeneration
(b) reheating of steam
(c) both (a) and (b)
(d) cooling of steam
(e) none of the above.
Ans: c
58. One kilowatt-hour energy is equivalent to
(a) 1000 J
(b) 360 kJ
(c) 3600 kJ
(d) 3600 kW/sec
(e) 1000 kJ.
Ans: c
59. Which of the following gases has the highest calorific value
(a) producer gas
(b) coal gas.
(c) water gas
(d) blast furnace gas
(e) coke oven gas.
Ans: b
60. 100% efficiency of a thermal cycle cannot be achieved because of
(a) frictional losses
(b) it is not possible to achieve 0°K temperature
(c) leakage
(d) non-availability of ideal substance
(e) none of the above.
Ans: b
Read More Steam Boilers & Nozzles and Turbines Questions and Answers
Part1 Part2 Part3 Part4 Part5 Part6 Part7 Part8 Part9 Part10
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