Related Questions

Temper brittleness of a material can be fairly detected by the __________ test.
A Fatigue
B Notched bar impact
C Tensile
D Hardness
Brittleness of cold is due to an excess of
A Sulphur
B Carbon
C Phosphorus
D Silicon
Brittleness induced due to the presence of sulphur in steel can be reduced by adding
A Manganese
B Magnesium
C Vanadium
D Copper
Mr. Mamun bought 73 rolls of film. He can take 24 pictures with each roll of film. What is the total number of pictures he can take with 73 rolls of film ?
A 1,642
B 1,652
C 1,742
D 1,752
Which film has been awarded with best Environment film in 64th National film awards?
A Kassav
B Dashkriya
C Ventilator
D The tiger who crossed the line
Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling.
A CO2
B SO2
C NH3
D None of these
The film thickness for laminar film condensation on vertical surface __________ from top to bottom.
A Cummulatively increases
B Cummulatively decreases
C Remains constant
D And the surface conductance increase
Lime and soda ash are added to water to remove
A Bicarbonates & sulphates of calcium and magnesium
B Undersirable taste and odour
C Bacteria
D Its corrosiveness
I don't like horror film and ____you? I cannot sleep after seen film I like fantastic film_______ I have got some at home
A yes do/I don't like them
B no don't /I like it
C neither doI/ so do I
D so do I / Neither do I
If h₁ = inner film co-efficient and /h₂ = outer film co-efficient, then the overall heat transfer co-efficient is
A Always less than h₁
B Always between h₁ and h₂
C Always higher than h₂
D Dependent on metal resistance

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