Related Questions

In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed __________ of the column diameter.
A $${\frac{1}{5}^{{\text{th}}}}$$
B $${\frac{1}{{15}}^{{\text{th}}}}$$
C $${\frac{1}{{30}}^{{\text{th}}}}$$
D $${\frac{1}{{50}}^{{\text{th}}}}$$
Stacked packing compared to dumped packing
A Provides poorer contact between the fluids
B Gives lower pressure drop
C Both A & B
D Gives higher pressure drop
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.
A Greater than
B Smaller than
C Equal to
D Either A, or B ; depends on the type of packing
Uniform ramming of sand in green sand moulding process leads to
A Reduced chance of gas porosity
B Greater dimensional stability of the casting
C Uniform flow of molten metal into the mould cavity
D Less sand expansion type of casting defect
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
A 22
B 25
C 28
D 32
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
A 22
B 25
C 28
D 32
Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks.
A Bakelite impregnated or fused periclase
B Silica
C Semi-silica
D Fireclay
A machine can produce 10 units in 5 hours. Another machine can produce 5 units in 10 hours. Working together, how many units can they produce in 30 hours?
A 50 units
B 60 units
C 70 units
D 80 units
The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is _________ as compared to uniform wear.
A Less
B More
C Same
D None of these
Generally wooden moulds are made from
A Ply wood
B Shishum wood
C Deodar wood
D Teak wood

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