@⇒ Short cut notes / rapid fire notes / best theory of Steam Boilers, Engines, Nozzles and Turbines ⇒ Mechanical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. .

2-Wrong options are also given but dont concentrate there, Right answer is in bold format.

Q1 ⇒ The critical pressure at which latent heat of vaporization is zero is
225.65 kgf/cm2
[other wrong options] [Discuss in forum] 10 -4

Q2 ⇒ The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is
less
[other wrong options] [Discuss in forum] 4 -6

Q3 ⇒ The saturation temperature of steam with increase in pressure increases
rapidly first and then slowly
[other wrong options] [Discuss in forum] 6 -5

Q4 ⇒ Carbonisation of coal is the process of
strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
[other wrong options] [Discuss in forum] 2 -3

Q5 ⇒ Coke is produced by
strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
[other wrong options] [Discuss in forum] 6 -3

Q6 ⇒ Heating of dry steam above saturation temperature is known as
superheating
[other wrong options] [Discuss in forum] 4 -4

Q7 ⇒ Superheating of steam is done at
constant pressure
[other wrong options] [Discuss in forum] 6 -2

Q8 ⇒ 1 kg.m is equal to
9.81 Joules
[other wrong options] [Discuss in forum] 2 -5

Q9 ⇒ Equivalent evaporation is the amount of water evaporated in a boiler from and at
100°C
[other wrong options] [Discuss in forum] 1 -1

Q10 ⇒ The specific volume of steam with increase in pressure decreases
rapidly first and then slowly
[other wrong options] [Discuss in forum] 3 -2

Q11 ⇒ The equivalent evaporation of a boiler is a measure to compare
any type of boilers operating under any conditions.
[other wrong options] [Discuss in forum] 3 -2

Q12 ⇒ The coal requirement per kW hour generation in the thermal power plant is of the order of
0.6 to 0.8 kg
[other wrong options] [Discuss in forum] 1 -3

Q13 ⇒ Sublimation region is the region where
solid and vapour phases are in equilibrium
[other wrong options] [Discuss in forum] 3 -2

Q14 ⇒ Stoichiometric quantity of air is the
air required for complete combustion of fuel with no excess air
[other wrong options] [Discuss in forum] 3 -1

Q15 ⇒ One kg of steam sample contains 0.8 kg dry steam; it's dryness fraction is
0.8
[other wrong options] [Discuss in forum] 4 -13

Q16 ⇒ If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by
throttling calorimeter
[other wrong options] [Discuss in forum] 3 -1

Q17 ⇒ The specific heat of superheated steam in kcal/kg is generally of the order of
0.5
[other wrong options] [Discuss in forum] 3 -5

Q18 ⇒ On Mollier chart, flow through turbine is represented by '
vertical straight line
[other wrong options] [Discuss in forum] 2 -2

Q19 ⇒ A wet vapour can be completely specified by
pressure and dryness fraction.
[other wrong options] [Discuss in forum] 8 -5

Q20 ⇒ On Millier chart, the constant pressure lines
diverge from left to right
[other wrong options] [Discuss in forum] 2 -1

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