Chemical Engineering MCQs

Page No. 777

Methyl orange indicator turns_____________________?


aOrange yellow in alkaline medium

✓


bOrange yellow in acidic medium

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cColourless in acidic medium

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dColourless in basic medium

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Sand used to stop the green sand from sticking to the pattern is termed as the ______________ sand?


aParting

✓


bSynthetic

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cLoam

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dDry

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View Answer Parting

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be___________________?


a100% indirect reduction

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b100% direct reduction

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c50-60% indirect reduction

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d30-40% indirect reduction

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Tip of the match stick contains a mixture of________________?


aK + S

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bK + S + K2Cr2O7

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cS + K2Cr2O7 + White P

✓


dNone of these

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View Answer S + K2Cr2O7 + White P

Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its___________________?


aPressure & temperature

✓


bPressure & specific volume

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cTemperature & specific volume

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dTemperature only

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The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6) ?


a4.4

✓


b5.6

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c8.4

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d2.4

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View Answer 4.4

The swift cup test evaluates the following property of a sheet metal ?


aStretchability

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bDrawability

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cBendability

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dNone of these

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View Answer Drawability

LVDT used for displacement measurement is a/an _______________ Transducer?


aPassive

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bActive

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cCapacitive

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dNone of these

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View Answer Passive

Cold chisel‟s hammers are made of___________________?


aHigh speed steel

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bHigh carbon steel

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cForged steel

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dMild steel

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View Answer High carbon steel

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?


aV/A

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bV/A2

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cV2/A

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dV2/A2

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View Answer V2/A2

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