Materials And Construction — Part 1 MCQs with Explanations

Invar is the correct answer to “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 (l/20th of ordinary metals)”. This question is standard in competitive examination syllabi for Materials And Construction.

Die with hammer is the correct answer to “In drop forging process, the forging is done by dropping the __________ at high velocity.”. This question is standard in competitive examination syllabi for Materials And Construction.

Cubic is the correct answer to “Most of the common metals have __________ crystal structure.”. This question is standard in competitive examination syllabi for Materials And Construction.

Used for making axle & shafts of aeroplanes, automobiles and locomotives is the correct answer to “Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is”. This question is standard in competitive examination syllabi for Materials And Construction.

Lead is the correct answer to “Liners of a ball mill are never made of”. This question is standard in competitive examination syllabi for Materials And Construction.

2 is the correct answer to “Approximate value of the modulus of elasticity for steel is about __________ × 10 6 kg/cm 2 .”. This question is standard in competitive examination syllabi for Materials And Construction.

Silicon is the correct answer to “Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property”. This question is standard in competitive examination syllabi for Materials And Construction.

Constantan is the correct answer to “An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called”. This question is standard in competitive examination syllabi for Materials And Construction.

All of the above is the correct answer to “Rubber lined vessels are corroded by the action of”. This question is standard in competitive examination syllabi for Materials And Construction.

Cold rolled is the correct answer to “Pipes for bi-cycle frames are made of __________ steel.”. This question is standard in competitive examination syllabi for Materials And Construction.

Monel metal is the correct answer to “Nickel and copper are the basic constituents of”. This question is standard in competitive examination syllabi for Materials And Construction.

Hastealloy is the correct answer to “Nickel and molybdenum are the basic constituents of”. This question is standard in competitive examination syllabi for Materials And Construction.

Is used as an alloying element for both ferrous & non-ferrous alloys is the correct answer to “Nickel as a material of construction”. This question is standard in competitive examination syllabi for Materials And Construction.

Work is the correct answer to “The increase in hardness of metal due to its cold working is termed as the __________ hardening.”. This question is standard in competitive examination syllabi for Materials And Construction.

Steel is the correct answer to “Balls in a ball mill are usually made of”. This question is standard in competitive examination syllabi for Materials And Construction.

PTFE and porcelain is the correct answer to “Concentrated HCl at 30°C can be stored in a vessel made of”. This question is standard in competitive examination syllabi for Materials And Construction.

Monel is the correct answer to “Brine (15% concentration) can be stored in a vessel made of”. This question is standard in competitive examination syllabi for Materials And Construction.

Low thermal conductivity is the correct answer to “A bearing metal should not have”. This question is standard in competitive examination syllabi for Materials And Construction.

All of the above is the correct answer to “White cast iron as compared to grey cast iron is”. This question is standard in competitive examination syllabi for Materials And Construction.

Bakelite is the correct answer to “Which of the following is produced by condensation polymerisation”. This question is standard in competitive examination syllabi for Materials And Construction.

Both B and C is the correct answer to “Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously.”. This question is standard in competitive examination syllabi for Materials And Construction.

Stainless steel is the correct answer to “Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of __________ as mercury does not amalgamate with it.”. This question is standard in competitive examination syllabi for Materials And Construction.

Marageing steel is the correct answer to “High resistance electrical heating elements/wire are not made of”. This question is standard in competitive examination syllabi for Materials And Construction.

Tungsten is the correct answer to “The material used in the filament of electric bulbs is”. This question is standard in competitive examination syllabi for Materials And Construction.

Prevent the action of water is the correct answer to “The main purpose of galvanising iron sheets is to”. This question is standard in competitive examination syllabi for Materials And Construction.

Magnesium is the correct answer to “Which of the following metals in not used for coating of the base metal to guard it against corrosion”. This question is standard in competitive examination syllabi for Materials And Construction.

Antimony is the correct answer to “__________ is a donor impurity for semi-conductors.”. This question is standard in competitive examination syllabi for Materials And Construction.

Rubber lined is the correct answer to “Hydrochloric acid is stored in a __________ steel vessel.”. This question is standard in competitive examination syllabi for Materials And Construction.

Reinforced concrete lined with lead is the correct answer to “Copper is dissolved from its ore by H 2 SO 4 in a percolation tank made of”. This question is standard in competitive examination syllabi for Materials And Construction.

0.2 is the correct answer to “Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.”. This question is standard in competitive examination syllabi for Materials And Construction.

Upto 910 is the correct answer to “Alpha iron is stable __________ °C.”. This question is standard in competitive examination syllabi for Materials And Construction.

Grey cast is the correct answer to “__________ iron is produced, when molten pig iron is allowed to cool gradually.”. This question is standard in competitive examination syllabi for Materials And Construction.

Babbit metal is the correct answer to “Which of the following is not a nickel based alloy”. This question is standard in competitive examination syllabi for Materials And Construction.

Bismuth is the correct answer to “Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.”. This question is standard in competitive examination syllabi for Materials And Construction.

Storage batteries is the correct answer to “Maximum consumption of lead is in the manufacture of”. This question is standard in competitive examination syllabi for Materials And Construction.

Silica is the correct answer to “Coke oven walls are lined with __________ bricks.”. This question is standard in competitive examination syllabi for Materials And Construction.

Mainly tin (85%) and lead is the correct answer to “Babbit metal (used for making bearings) comprises of”. This question is standard in competitive examination syllabi for Materials And Construction.

Glass lined steel is the correct answer to “The chlorinator used in the manufacture of DDT is made of”. This question is standard in competitive examination syllabi for Materials And Construction.

0.35 to 0.5 is the correct answer to “Carbon percentage in medium carbon steel is around”. This question is standard in competitive examination syllabi for Materials And Construction.

Hardness is the correct answer to “Addition of nickel to copper improves its”. This question is standard in competitive examination syllabi for Materials And Construction.