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.Management Sciences
Category: Chemical Engineering Basics
An oxidation process is accompanied with decrease in the____________________?
0
A. Number of electrons
B. Oxidation number
C. Number of ions
D. All A , B. & C.
Which of the following heat treatment processes is usually applied to castings ?
A. Tempering
B. Annealing
C. Normalising
D. Carburising
Age hardening is connected with________________?
A. Babbitt metal
B. Gun metal
C. Stainless steel
D. Duralumin
_______________ test determines the yield strength, Young’s modulus of elasticity, percentage reduction in area & percentage elongation of a material ?
A. Tensile
B. Fatigue
C. Impact
D. None of these
Metallic surveying tapes are made of _____________ which has a low co-efficient of expansion & enough strength ?
A. Invar
B. Hastelloy
C. Duralumin
D. Monel metal
Hydrogen can be ________________?
A. Used in I.C. engines as fuel
B. Liquefied & stored under cryogenic conditions
C. Produced by electrolysis of water
D. All (A), B. & C.
Which of the following is not a dielectric material ?
A. Cotton, silk and paper
B. Asbestos, glass, porcelain and mica
C. Rubber and polymeric resins
D. All refractory materials
Carnot cycle is also termed as the constant _________________ cycle in thermodynamics?
A. Entropy
B. Pressure
C. Volume
D. Heat
Super heating of steam is done at constant___________________?
A. Enthalpy
B. Entropy
C. Pressure
D. Volume
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