2092. Spray dryer for evaporating milk to produce milk powder is made of
Lead lined steel
Stainless steel
Aluminium
Cast iron
✅ The correct answer is option B.
2094. Platinum and silver are corroded by
Caustic soda solution
Phosphoric acid
Sulphuric acid (10%)
None of these
✅ The correct answer is option D.
2096. Common house hold glass (i.e., soda-lime glass) is a/an __________ material.
Fully crystalline
Partly crystalline
Amorphous
None of these
✅ The correct answer is option B.
2098. The specific gravity of coal depends mainly on its __________ content.
Carbon
Volatile matter
Ash
Moisture
✅ The correct answer is option C.
2100. Tin in its pure form is used for making
Cans for food packing
Collapsible tubes for toilet preparations
Foil for wrapping cheese
All of the above
✅ The correct answer is option D.
2103. Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is
Used for making axle & shafts of aeroplanes, automobiles and locomotives
Having poor fatigue resistance
Having poor toughness
Not helpful in producing cleaner steel due to oxidising action of vanadium
✅ The correct answer is option A.
2066. Visco-elastic behaviour of materials which is time dependent is common in
Plastics
Crystalline solid
Non-crystalline solids
Non-crystalline organic polymer
✅ The correct answer is option D.
2069. Low carbon steels are those in which carbon percentage is around
0.1 to 0.35
0.4 to 0.7
0.8 to 1.5
1.5 to 2
✅ The correct answer is option A.
2072. Nickel (76%) and chromium (15%) alloys are termed as
Inconel
Monel
Aluminium bronzes
Brass
✅ The correct answer is option A.
2075. For storing water and acid free benzol, use a __________ vessel.
Steel
Karbate
Stainless steel
None of these
✅ The correct answer is option A.