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Chemical Engineering - Chemical Engineering Basics

Exercise : Chemical Engineering Basics - Section 9
41.
Dislocation cross-slip is difficult in those materials, which have
large number of slip systems.
high work hardening rate.
coarse grain size.
low stacking fault energy.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Shrinkage allowance on pattern is provided to compensate for shrinkage when the
metal changes from liquid state to solid state at freezing temperature.
solid phase temperature drops from freezing temperature to the room temperature.
liquid metal temperature drops from pouring temperature to room temperature.
liquid metal temperature drops from pouring temperature to freezing temperature.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Spark plug is provided in a/an
engine having carburettor.
diesel engine.
compression ignition engine.
both(b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Oxyacetylene reducing flame is used while carrying out welding on
alloy steel
grey cast iron
mild steel
high carbon steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as
Re0.5, Re0.8
Re0.8, Re-0.5
Re0.8, Re0.5
Re-0.8, Re0.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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