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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 15
21.
In TIG welding, thoriated tungsten electrodes are used, because it
has higher current carraying capacity.
has better electron emissivity.
is stronger than ordinary tungsten.
is easy to prepare.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Vernier calipers can not be used to measure the
I.D. & O.D. of the shaft.
thickness of parts.
depth of holes.
clearance between two mating surfaces.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Which of the following is not the commercial name of polymethyl-methacrylate (PMMA) ?
Styrofoam
Lucite
Perspex
Plexiglass
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
On being hit with a hammer, __________ will readily fracture.
brass
mild steel
cast iron
lead
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Which of the following does not discharge the dust collected as a dry solid ?
Electrostatic precipitator
Wet scrubber
Bag filter
Gravity settling chamber
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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