A. Stainless steel
B. Wrought iron
C. Tin
D. Copper
Related Mcqs:
- Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
A. Invar
B. Constantan
C. Chromel
D. Alumel - Which has the maximum melting point out of the following ?
A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron - Which of the following has the highest density and the lowest melting point ?
A. Stainless steel
B. Titanium
C. Lead
D. Aluminium - As the impurities are oxidised, the melting point of iron___________________?
A. Decreases
B. Remains unchanged
C. Increases
D. May increase or decrease; unpredictable - Tank furnace used for melting of glass is made of___________________?
A. Mild steel
B. Cast iron
C. Refractory blocks
D. Stainless steel - Sulphur melting pit in the sulphuric acid plant is made of__________________?
A. Lead lined stainless steel
B. Cast iron
C. Steel or cement-brick lined
D. Hard wood - Which of the following metals in not used for coating of the base metal to guard it against corrosion ?
A. Lead
B. Cadmium
C. Magnesium
D. Aluminium - A metallic alloy in which one of the constituent metal is _____________, is called an amalgam?
A. Zinc
B. Mercury
C. Lead
D. Tin - Babbitt metal (used for making bearings) comprises of__________________?
A. Mainly tin (85%) and lead
B. Saw dust and iron dust mixture
C. Zinc and aluminium
D. Copper and aluminium - Mercury is transported in metal containers made of________________?
A. Aluminium
B. Iron
C. Lead
D. Nickel
