Users Also Read
Read MCQ's/Objective questions
MCQ's Search Engine
Chemical Engineering Basics
Chemical Engineering Plant Economic
Chemical Engineering Thermodynamic
Chemical Process Industries
Chemical Reaction Engineering & reactor design
Environmental Engineering
Fertiliser Technology
Fluid Mechanics
Fuels and Combustion
Furnace Technology
Heat Transfer
Mass Transfer
Mechanical Operations
Nuclear Power Engineering
Petroleum Refinery Engineering
Polymer Technology
Process Control and Instrumentation
Process Equipment and Plant Design
Refractory Technology
Stoichiometry
Home⇒ Engineering⇒
Materials and construction
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ? Silicon steel [other wrong options] [Discuss in forum] Chromium steel Molybdenum steel None of these |
Q22 ⇒ Copper is dissolved from its ore by H2SO4 in a percolation tank made of reinforced concrete lined with lead [other wrong options] [Discuss in forum] wood stainless steel high silicon iron (14% Si) |
Q23 ⇒ Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making chiesels [other wrong options] [Discuss in forum] nuts bolts studs |
Q24 ⇒ Carbon is present in steel wholly in the combined form. [other wrong options] [Discuss in forum] free state as graphite. both (a) and (b). neither (a) nor (b). |
Q25 ⇒ Post weld heat treatment is done by stress relieving [other wrong options] [Discuss in forum] normalising tempering solution annealing |
Q26 ⇒ A chemical change takes place when iron rusts [other wrong options] [Discuss in forum] melts is heated none of these |
Q27 ⇒ Which of the following comprises of hydrocarbons ? Rubber [other wrong options] [Discuss in forum] Mica flakes Glass None of these |
Q28 ⇒ Ball bearings are normally made of __________ steel. chrome [other wrong options] [Discuss in forum] high speed high carbon silicon |
Q29 ⇒ Telfon (PTFE) is corroded by none of these [other wrong options] [Discuss in forum] hydrochloric acid (10%) hydrochloric acid (95%) sulphuric acid |
Q30 ⇒ In order to be called steel, an alloy should have iron percentage greater than 80 [other wrong options] [Discuss in forum] 70 90 50 |
Q31 ⇒ The heat treatment process applied to cold formed steel parts is solution annealing [other wrong options] [Discuss in forum] normalising tempering artificial ageing |
Q32 ⇒ Tin coating is not done by vaporising [other wrong options] [Discuss in forum] hot dipping electro deposition spraying |
Q33 ⇒ Which of the following alloys does not contain nickel ? Babbit metal [other wrong options] [Discuss in forum] Chloro, et-2 alloy Monel Inconel |
Q34 ⇒ For platinum thermocouples, lead wires are made of copper & copper-nickel alloys. [other wrong options] [Discuss in forum] copper & iron. iron & nickel. tin & nickel. |
Q35 ⇒ Sulphuric acid pickling tanks are lined with rubber [other wrong options] [Discuss in forum] nickel aluminium glass |
Q36 ⇒ Caustic soda can be stored in __________ drums. steel [other wrong options] [Discuss in forum] cast iron brass gun metal |
Q37 ⇒ Spray dryer for evaporating milk to produce milk powder is made of stainless steel [other wrong options] [Discuss in forum] lead lined steel aluminium cast iron |
Q38 ⇒ Ability of a material to absorb energy in deformation in the plastic range is characterised as its toughness [other wrong options] [Discuss in forum] ductility creep resilience |
Q39 ⇒ Rubber lined pumps can be used to pump all (a), (b) and (c) [other wrong options] [Discuss in forum] caustic soda chlorinated brine hypochlorous acid |
Q40 ⇒ Tempering of steel is done to make it soft [other wrong options] [Discuss in forum] brittle hard rollable |
Or |