In the diving apparatus, helium is used along with oxygen, because it is
A. Easily available
B. Not soluble in blood at high pressure
C. Lighter than nitrogen
D. Completely miscible with oxygen
Answer: Option B
A. Easily available
B. Not soluble in blood at high pressure
C. Lighter than nitrogen
D. Completely miscible with oxygen
Answer: Option B
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
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