2004. Graphite is a good
Thermal & electrical insulator
Conductor of heat
Conductor of electricity
Both B & C
✅ The correct answer is option D.
2007. Hastelloy C is a good material of construction in chemical process industry, since it is
Highly corrosion resistant and is readily fabricated
Relatively inexpensive although it can be fabricated with some difficulty
Corrosion resistant to most alkalis, particularly because of its coper content
Light and resists attack by acids
✅ The correct answer is option D.
2010. An elastic behaviour of materials is expressed in terms of
Hysterisis loop area
Stress-strain curve
Relaxation time
None of these
✅ The correct answer is option C.
2013. Babbit metal used for bearings is a____base alloy.
Tin
Lead
Aluminium
Copper
✅ The correct answer is option A.
2016. Which has the maximum melting point out of the following?
Steel
Cast iron
Stainless steel
Wrought iron
✅ The correct answer is option D.
1977. Creep is not exhibited at low temperature by
Rubber
Acrylics
Lead
Plastics
✅ The correct answer is option C.
1980. The main constituent of carborundum is __________ carbide.
Calcium
Silicon
Boron
Aluminium
✅ The correct answer is option B.
1983. Monel metal is an alloy of
Molybdenum and nickel
Nickel and copper
Molybdenum and aluminium
Molybdenum and zinc
✅ The correct answer is option B.
1986. Hydrochloric acid is __________ corrosive to common metals.
Least
Not
Mildly
Highly
✅ The correct answer is option D.
1951. Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making
Shafts
Flanges
Gears
Shear blades
✅ The correct answer is option B.