Main alloying element in Elinvar used in precision instruments, hair springs for watches etc. is
A. Chromium
B. Nickel
C. Zinc
D. Aluminium
Answer: Option B
This Question Belongs to Chemical Engineering >> Chemical Engineering Basics
Related Questions on Chemical Engineering Basics
Which of the following will resist maxi-mum shock & vibration without cracking?
A. Grey cast iron
B. White cast iron
C. Malleable iron
D. Graphite
A. Pulverised fuel
B. Travelling grate stoker firing
C. Circulating fluidised bed
D. Fluidised bed
Isotropic materials have the same __________ in all directions.
A. Induced stresses
B. Density
C. Elastic properties
D. Thermal properties
Join The Discussion