Related Questions

Molecular seives are porous
A Alumina
B Silica
C Synthetic zeolites crystals/metal alumino-silicates
D None of these
Which parameter determines whether the old session file will also be deleted when the session ID is regenerated?
A delete_old_file
B delete_old_session
C delete_old_session_file
D delete_session_file
Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of
A Calcium sulphate
B Sodium chloride
C Sodium sulphate
D Magnesium chloride
Anion exchanger is regenerated usually with
A NaOH
B H2SO4
C Hydrazine
D Alum solution
Cation exchanger is regenerated usually with
A NaOH
B H2SO4
C Hydrazine
D Alum solution
Zeolite used in water softening process (cation exchange) is regenerated by washing with
A Brine
B Chloramines
C Sodium bisulphite
D Liquid chlorines
Gross heating value of coal is __________ the net heating value.
A Higher than
B Lower than
C Same as
D None of these
The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be
A 2M
B $$\frac{{\text{M}}}{2}$$
C M
D $$\frac{{\text{M}}}{4}$$
Heating wet steam at constant temperature is heating it at constant
A Volume
B Pressure
C Entropy
D Enthalpy
In a regenerative feed heating cycle, the optimum value of the fraction of steam extracted for feed heating
A Decreases with increase in Rankine cycle efficiency
B Increases with increase in Rankine cycle efficiency
C Is unaffected by increase in Rankine cycle efficiency
D None of the above

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