Related Questions

The Sea water is more salty than rain water because
A Sea creatures salt
B Air around sea is salty
C Rivers pours salt from the soil into sea
D There are salt mines in sea surface
A condenser where circulating water flows through tubes which are surrounded by steam, in known as
A Surface condenser
B Jet condenser
C Barometric condenser
D Evaporative condenser
________ cooling is the process of dissipating the armature and field winding losses to a cooling medium circulating within the winding insulation wall
A Direct
B Indirect
C Conventional
D Any of the above
The thermal efficiency of the engine with condenser as compared to without condenser, for a given pressure and temperature of steam, is
A Higher
B Lower
C Same as long as initial pressure and temperature is unchanged
D None of the above
For identical situation, condensing film coefficient in case of a horizontal condenser is almost __________ the value expected in case of vertical condenser.
A Half
B Twice
C Thrice
D Five times
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when
A Hydrostatic head is required for refluxing the condensate
B Only the function of condensation is to be carried out
C Sub cooling of condensate is desired
D Both the functions of condensation & sub cooling are carried out in a single unit
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
A ps - pa
B pa - ps
C pa + ps
D None of these
Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is
A Same
B Less
C About 3 times
D About 0.33 times
The most salty basin in the world is the
A Caspian Sea
B Dead Sea
C Red Sea
D Arabian Sea
Admiralty brass used for steam condenser tubes contains copper and zinc in the following ratio
A 50 : 50
B 30 : 70
C 70 : 30
D 40 : 60

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