Diamond is the hardest naturally occurring substance found on Earth. But it is not the hardest substance. Wurtzite boron nitride (synthetic) and lonsdaleite (which comes from meteorites) are both harder.
8) Hardest natural substance known is
Answer is:
Diamond
Explanation:
Related ISRO Technician-B Fitter Question Paper - 2016 (Set - 1) with Answer Key
Answer is:
660 degree celsius
Explanation:
Melting point of Aluminium is approximately 660 degree celsius.
Answer is:
Feeler gauge
Explanation:
Feeler gauges are used:
– To check the gap between the mating parts
– To check and set the spark plug gaps
– To set the clearance between the fixture (setting block) and the cutter/tool for machining the jobs
– To check and measure the bearing clearance, and for many other purposes where a specified clearance must be maintained.
Answer is:
Check squareness of the surfaces
Explanation:
A try- square is a woodworking tool used for marking and measuring a square piece of wood. The square refers to the tool's primary use of measuring the accuracy of a right angle (90 degree angle); to try a surface is to check its straightness or correspondence to an adjoining surface.
