Chemical Engineering MCQs

6108 MCQs (Page 60 of 611)

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Out of the following the refractive index is the highest for____________________?

A. Glass
B. Diamond
C. Brine
D. Kerosene

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Which of the following if present in iron ore, enhances its value ?

A. Alumina
B. Alkali oxide
C. Lime & magnesia
D. None of these

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With increase in temperature, the electrical conductivity of a _________________ decreases ?

A. Semi-conductor
B. Metal or alloy
C. Dielectric
D. None of these

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The order of a chemical reaction____________________?

A. Can be determined only experimentally
B. Can be determined from the stoichiometry of the reaction
C. Cannot be zero
D. Can be fractional

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Load cells used for the measurement of weight has______________?

A. Compact & rugged construction with an accuracy of 0.1 to 1%
B. No moving parts and incurs negligible deflection under load
C. Provision of thermal compensation and is hermetically sealed
D. All a, b & c

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Viscoelastic behaviour is observed in _______________________ materials?

A. Non-crystalline organic polymeric
B. Ceramic
C. All crystalline
D. All amorphous

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For an ideal gas, Cp – Cv is____________________?

A. R
B. -r
C. 0
D. (3/2) r

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Which of the following materials has the poorest electrical conductivity ?

A. Carbon
B. Aluminium
C. Silver
D. Stainless steel

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Highest cutting speed is achieved by the _______________ tool material ?

A. High speed steel
B. Carbide
C. Cast alloy
D. Plain carbon steel

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All the atoms of the world comprise of electrons, proton & neutron except that of ______________ atom in which neutron is absent ?

A. Deuterium
B. Hydrogen
C. Neon
D. Helium

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