Chemical Engineering - Chemical Engineering Basics

46.
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are
cobalt, chromium & tungsten,
cobalt, chromium & nickel.
molybdenun, tungsten & chromium.
cobalt, zirconium & molybdenum.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?
Aluminium
Copper
Titanium
Stainless steel
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Which of the following is an ore dressing operation ?
Classification
Smelting
Roasting
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
Gratings is associated with the measurement of
linear displacement.
concavity/convexity.
surface texture.
flatness.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
__________ joint is mostly used for joining pipes carrying water at low pressure.
Nipple
Socket
Union
Bell and spigot
Answer: Option
Explanation:
No answer description is available. Let's discuss.