Related Questions

The vent valve provided in a liquid handling centrifugal pump is
A Generally a needle valve
B Used to release any gases that might be vapour locking the pump
C Helpful in easy removal of samples
D All of the above
A tank is fitted with 8 pipes, some of them that fill the tank and others that are waste pipe meant to those that empty the tank can empty it in 6 hours. If all the pipes are kept open when the tank is full, it will take exactly 6 hours for the tank to empty. How many of these are these are fill pipes?
A 2
B 4
C 6
D 5
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
Choose the word which best express the meaning of VENT:
A opening
B stodge
C End
D Went
Synonym of VENT
A Opening
B Start
C End
D Went
Each cell has a vent cap
A to allow gases out when the cell is on charge
B to add water to the cell if needed
C to check the level of electrolyte
D to do all above functions

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