Test Preparation on RRB JE-Mechanical Engineering Solved Paper-4
1.
For water, at pressures below atmospheric,
2.
At a very low temperatures, the melting and boiling temperatures become equal. This temperature is
3.
The critical pressure at which latent heat of vaporization is zero is
4.
The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is
5.
The saturation temperature of steam with increase in pressure increases
6.
Carbonisation of coal is the process of
7.
Coke is produced by
8.
Heating of dry steam above saturation temperature is known as
9.
Superheating of steam is done at
10.
1 kg.m is equal to
11.
If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton's law, the pressure in condenser is equal to
12.
Equivalent evaporation is the amount of water evaporated in a boiler from and at
13.
The specific volume of steam with increase in pressure decreases
14.
The equivalent evaporation of a boiler is a measure to compare
15.
The coal requirement per kW hour generation in the thermal power plant is of the order of
16.
Sublimation region is the region where
17.
Stoichiometric quantity of air is the
18.
One kg of steam sample contains 0.8 kg dry steam; it's dryness fraction is
19.
If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by
20.
If xx and x2 be the dryess fractions obtained in separating calorimeter and throttling calorimeter respectively, then the actual dryness fraction of steam will be
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