2101. Fatigue failure of a material results from __________ stress.
Tensile
Compressive
Fluctuating
None of these
✅ The correct answer is option C.
2104. __________ is never shipped in glass carboys.
Ammonia
Acetic acid
Phenol
Formaldehyde
✅ The correct answer is option A.
2067. Which of the following is the most elastic material?
Plastic
Glass
Steel
Rubber
✅ The correct answer is option C.
2070. In drop forging process, the forging is done by dropping the __________ at high velocity.
Hammer
Workpiece
Die with hammer
Weight on hammer
✅ The correct answer is option C.
2073. Acetaldehyde is shipped in __________ drums.
Cast iron
Steel
Aluminium
Either B & C
✅ The correct answer is option D.
2076. Which of the following is a low melting point metal?
Stainless steel
Wrought iron
Tin
Copper
✅ The correct answer is option C.
2079. Ceramic materials are
Organic in nature
Stronger in compression than in tension
Always amorphous in nature
Always bad heat conductors
✅ The correct answer is option B.
2082. Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of
Aluminium
Stainles steel
High silicon (14%) iron
Copper
✅ The correct answer is option B.
2085. Which of the following is the hardest material?
Topaz
Quartz
Corrundum
Flourite
✅ The correct answer is option C.
2048. Diamagnetic materials are magnetised
Strongly
Only slightly
With eddy currents only
In a direction opposite to that of the applied field
✅ The correct answer is option D.