Materials and Construction - Part 1 Online Exam Quiz
Materials and Construction - Part 1 GK Quiz. Question and Answers related to Materials and Construction - Part 1. MCQ (Multiple Choice Questions with answers about Materials and Construction - Part 1
The behaviour of visco-elastic material is time dependent. This behaviour is common in __________ materials.
Options
A : non-crystalline solid
B : crystalline
C : rubberry
D : non-crystalline organic polymeric.
Coke oven regenerators are made of __________ bricks.
Options
A : fire clay
B : silica
C : low thermal conductivity
D : high electrical conductivity
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) ?
Options
A : Invar
B : Constantan
C : Chromel
D : Alumel
Shock resisting steels should possess high
Options
A : hardness
B : toughness
C : tensile strength
D : wear resistance
The purpose of nitriding the steel is to
Options
A : harden its surface.
B : soften its surface.
C : improve its reliability.
D : none of these.
Ceramic recuperators are generally made of
Options
A : silicon carbide.
B : calcium carbide.
C : fireclay bricks.
D : high alumina bricks.
Hammers and railway rails are normally made of
Options
A : mild steel
B : dead mild steel
C : medium carbon steel
D : high carbon steel
Softness of silver can be converted into hardness by alloying it with small quantity of
Options
A : copper & nickel
B : zinc
C : aluminium
D : tin
The addition of antimony in tin-based alloys improves its
Options
A : rupture strength and hot hardness.
B : impact strength and bonding strength.
C : deformation resistance.
D : wear resistance.
The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability ?
Options
A : Lead
B : Copper
C : Aluminium
D : Wrought iron
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