CHEMICAL QUIZ:1

Online Examination for Chemical Engineering Quiz Question And Answer

Online Test

1. Which one of the following is incombustible ?

H2
CCl4
C2H2
S
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2. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.
 
hard
soft
silicon carbide
aluminium oxide
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3. Tin based white metals are used, where bearings are subjected to

high pressure & load
low pressure & load
high temperature.
low temperature.
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4. Friction factor for fluid flow in pipe does not depend upon the

pipe length.
pipe roughness.
fluid density & viscosity
mass flow rate of fluid
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5. All of the following alloying elements of steel increases hardness but sacrifice ductility, except
 

nickel
vanadium
molybdenum
chromium
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6. Crystal size in a continuous crystalliser depends upon the

rate of heat transfer
degree of turbulence
degree of supersaturation
all (a), (b) and (c).
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7. Heat waves

can not pass through vacuum
travel in straight line
can be reflected by a mirror
both (b) and (c)
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8. Air is best heated with steam in a heat exchanger of

plate type
double pipe type with fin on steam side
double pipe type with fin on air side
 shell and tube type
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9. Which of the following is generally considered as opaque surface towards radiations?

Gases
Solids
Liquids
Both (b) and (c)
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10. Black liquor generated during paper manufacture is concentrated in a

single effect evaporator
single effect evaporator followed by a crystalliser
multiple effect evaporator
multiple effect evaporators followed by a crystalliser
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Score =
Correct answers: