Chemical Engineering Basics Mcqs

Q.  Triple point of water is__________________?

a. 0.01 °C
b. 492°R
c. 0°K
d. -273°C


ANSWER: See Answer
 
Triple point of a substance is defined as a point of temperature & pressure in which the substance can exist in all it’s three states of solid, liquid & gas.

The single combination of pressure and temperature at which liquid water, solid ice, and water vapor can coexist in a stable equilibrium occurs at exactly 273.16K (0.01 °C) 32.08º F and a partial vapor pressure of 611.73 pascals(ca. 6.1173 millibars, 0.0060373 atm). At that point, it is possible to change all of the substance to ice, water, or vapor by making arbitrarily small changes in pressure and temperature.
MCQs:  Which of the following fastening devices has its both ends threaded ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Increase in temperature, in general results in the____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In case of a, centrifugal pump, the ratio h1/h2 is termed as the _____________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller)?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Hooke’s law_______________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Nusselt number/Biot number varies___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement about coating/electroplating of metals ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in _______________ electrons ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Cupola produces _________________ iron?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Screws are specified by their _____________ diameters?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Electrometallurgy is not involved in the extraction of ___________________ from its ore?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Mho’s scale of hardness, which consists of 10 standard minerals is used for the measurement of _______________ hardness?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The bank of tubes located at the back of the domestic refrigerators are the _______________ tubes?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement about nucleate boiling ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following can be manufactured using powder metallurgy techniques ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  ______________ is not used as the control rod material in a nuclear reactor ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  _________________ is not a heat treatment process ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The effect of friction on the flow of steam through a nozzle is to decrease the _______________ of steam?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts