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Online Chemical Engineering Test - Chemical Engineering Test - Random

Instruction:
  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20

Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.
1.
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition ?
0.5
0.67
1
2
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Learn more problems on : Fluid Mechanics
2.
In a neutral solution
H+ ions are absent.
OH- ions are absent.
both H+ and OH- ions are present in very small but equal concentration.
none of these.
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Learn more problems on : Stoichiometry
3.
In case of a vertical tube evaporator, with increase in the liquor level, the
capacity of the evaporator is decreased.
capacity of the evaporator is increased.
true temperature drop increases.
both (b) and (c).
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Learn more problems on : Heat Transfer
4.
Choose the correct equation.
Nu = (Re) (Pr) (Gz)
Nu = (Re) (Pr) (St)
Nu = (Re)(Pr)
Nu = (Pr)(St)
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Learn more problems on : Heat Transfer
5.
Platforming is a __________ process.
moving bed
fluidised bed
non-regenerative & fixed bed
regenerative
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Learn more problems on : Petroleum Refinery Engineering
6.
Which of the following gasolines (unleaded) has the least octane number ?
Catalytically cracked gasoline
Straight run gasoline
Catalytically reformed gasoline
Polymer gasoline
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Learn more problems on : Petroleum Refinery Engineering
7.
Perforated plate towers are unique for solvent extraction because, they provide
higher contact area.
better contact of the phase.
repeated coalescence & redispersion of the drop phase.
none of these.
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Learn more problems on : Mass Transfer
8.
With increase in temperature, the leaching rate increases due to
decreased liquid viscosity
increased diffusivity
both (a) and (b)
neither (a) nor (b)
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Learn more problems on : Mass Transfer
9.
The transfer function for a first order process with time delay is
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Learn more problems on : Process Control and Instrumentation
10.
Pick out the wrong statement.
Phase rule variables are intensive properties.
Heat and work are both state function.
The work done by expansion of a gas in vacuum is zero.
CP and CV are state function.
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Learn more problems on : Chemical Engineering Thermodynamics
11.
Which of the following is not correct for a reversible adiabatic process ?
TVγ-1 = constant
p1-γ.TY = constant
PVγ = constant
none of these
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Learn more problems on : Chemical Engineering Thermodynamics
12.
Presence of nitrogen in combustion air does not reduce the
amount of heat liberated.
flame temperature.
flue gas temperature.
any of the above.
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Learn more problems on : Fuels and Combustion
13.
Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3)?
Producer gas
Carburetted water gas
Natural gas
Liquified petroleum gas
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Learn more problems on : Fuels and Combustion
14.
Coke oven gas is a better fuel than blast furnace gas, because of its higher
calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity).
adiabatic flame temperature.
heat release rate (thus requiring smaller combustion chamber).
all (a), (b) and (c).
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Learn more problems on : Fuels and Combustion
15.
Pick out the wrong statement.
Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal.
Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel.
Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing.
none of these.
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Learn more problems on : Fuels and Combustion
16.
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is
pd/2t
pd/4t
pd/t
pd/3t
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Learn more problems on : Process Equipment and Plant Design
17.
For high pressure process equipments/vessels, the connected nozzle should be
welded
screwed
flanged
brazed
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Learn more problems on : Process Equipment and Plant Design
18.
Out of the following places, heavy water plant is not located at
Baroda
Ramagundam
Talcher
Tuticorin
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Learn more problems on : Nuclear Power Engineering
19.
Brittleness induced due to the presence of sulphur in steel can be reduced by adding
manganese
magnesium
vanadium
copper
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Learn more problems on : Chemical Engineering Basics
20.
Impeller & casing of centrifugal pump handling corrosive liquid and frequently running under cavitation condition is most prone to __________ corrosion.
uniform
oxygen diffusion
pitting
inter-granular
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Learn more problems on : Chemical Engineering Basics
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