Latest Competitive Chemical Engineering MCQs -Materials And Construction MCQs
This post is comprising of latest ” Materials And Construction MCQs – Latest Competitive Chemical Engineering MCQs “. Here you’ll get latest mechanical engineering mcqs for written test, interview with answers. If you want to improve your knowledge regarding mechanical engineering then read these mcqs of Design of Steel Structures.
Latest Chemical Engineering MCQs
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Latest Materials And Construction Mcqs
The most occurred mcqs of Materials And Construction in past papers. Past papers of Materials And Construction Mcqs. Past papers of Materials And Construction Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Materials And Construction Mcqs. The Important series of Materials And Construction Mcqs are given below:
Pick out the wrong statement?
A. The toughness of a material decreases, when it is heated
B. The temperature at which new grains are formed in a metal is known as the recrystallisation temperature
C. Cold working of a metal decreases its fatigue strength
D. Crane hooks are normally made of wrought iron
Pick out the wrong statement?
A. Pure rubber is as useless as pure gold as a material of construction
B. Thermal conductivity of aluminium is higher than that of copper; hence it is increasingly used for utensil making
C. Reinforced plastics are made from both thermoplastic as well as thermosetting plastics
D. Copper has poor weldability
Pick out the wrong statement?
A. The chilled cast iron does not contain graphite
B. Wrought iron cannot be easily forged and welded
C. Wrought iron contains about 0.02% carbon
D. Spheroidal grey cast iron contains graphite flakes
Pick out the correct statement?
A. Stainless steel is nothing but chromium coated steel
B. Hardening of a soft metal can be done by alloying it with another metal or non-metal
C. Rusting of iron is not electrochemical in nature
D. Plastic deformation of a material is its temporary distortion under the action of applied stress
Pick out the wrong statement?
A. Hardening makes the steel more brittle
B. 18/8 stainless steel is a magnetic steel
C. High alloy steels contain more than 50% alloying element
D. Both B. and C.
Pick out the wrong statement ?
A. Karbate is an acid resistant material of construction
B. Presence of silicon in steel decreases its electrical resistance
C. Alloys are harder than their component elements
D. Nichrome, a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C
Pick out the wrong statement ?
A. Tin can be readily and very easily drawn into very fine wire
B. Tin exists in two allotropic forms
C. Tin can be severely cold worked without the necessity of annealing due to its low recrystallisation temperature
D. The predominant use of tin is in the form of coating for steel & copper alloys
Pick out the wrong statement?
A. Brass is an alloy of copper & zinc
B. Bronze is an alloy of copper & tin
C. The alloy named ‘German silver’ does not contain any silver
D. The ability of a material to fracture without appreciable deformation is called its ductility
The range of Mho’s scale of hardness is from________________?
A. 1 to 8
B. 1 to 15
C. 1 to10
D. 0 to 10
______________ possesses viscoelastic properties?
A. Glass
B. Cork
C. Graphite
D. Rubber
Aluminium storage vessel can be used to store________________?
A. Ferrous sulphate
B. Aqua regia
C. Hydrochloric acid (10%)
D. None of these
Which of the following alloys does not contain nickel ?
A. Monel
B. Chlorinet – 2 alloy
C. Inconel
D. Babbitt metal
Carbon percentage in medium carbon steel is around__________________?
A. 0.8 to 1.4
B. 0.35 to 0.5
C. 0.1 to 0.35
D. 1 to 1. 5
Which of the following heat treatment processes is used for softening the hardened material ?
A. Annealing
B. Tempering
C. Normalising
D. None of these
Interchain forces are the weakest in case of________________?
A. Fibres
B. Plastics
C. Elastomers
D. Both rubber & elastomers
______________ is never shipped in glass carboys?
A. Ammonia
B. Phenol
C. Acetic acid
D. Formaldehyde
Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)___________________?
A. Do not have good resilience properties
B. Are used for leaf and coiled springs
C. Do not require heat treatment for any of its applications
D. Is tempered at 850°C
The fermenter used for the production of ethyl alcohol from molasses is made of________________?
A. Concrete
B. Wood
C. Copper bearing steel
D. Porcelain
Mercury is transported in metal containers made of________________?
A. Lead
B. Iron
C. Aluminium
D. Nickel
Lead_________________?
A. Is the lightest metal in common use
B. Is the hardest metal in common use
C. Cannot be scratched by finger nails
D. Cannot be work hardened
Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C ?
A. Nickel, monel, stainless steel and graphite
B. Silicone rubber, teflon, porcelain and wood
C. Aluminium, copper, high silicon iron
D. Brass, cast iron, mild steel and tin
The softest material just next to talc in the Mhos scale is_________________?
A. Feldspar
B. Gypsum
C. Quartz
D. Fluorite
In drop forging process, the forging is done by dropping the _____________ at high velocity?
A. Workpiece
B. Hammer
C. Die with hammer
D. Weight on hammer
Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of___________________?
A. Zircaloy
B. Steel
C. Concrete
D. Graphite
The preferred material of construction for storage tanks for 98% sulphuric acid is_________________?
A. Stainless steel 316
B. Lead
C. Aluminium
D. Mild steel
Which of the following has the least carbon percentage ?
A. Mild steel
B. Low carbon steel
C. Wrought iron
D. White cast iron
Locomotive boiler tubes are made of _____________ alloys?
A. Arsenic copper
B. Aluminium
C. Magnesium
D. Nickel
Wood is corroded by__________________?
A. SO2 (dry or wet)
B. Hydrochloric acid
C. Chlorine (dry or wet)
D. All A., B. and C.
Pipes for bi-cycle frames are made of _____________ steel?
A. Chrome carbon
B. Hot rolled
C. Cold rolled
D. Stainless
Fluid Mechanics Mcqs
Fatigue strength of a material increases by_____________________?
A. Rise in temperature
B. Having notches in the specimen
C. Under stressing the specimen
D. Having scratches on the surface
An elastic behaviour of materials is expressed in terms of_______________?
A. Stress-strain curve
B. Hysteresis loop area
C. Relaxation time
D. None of these
The formation of oxide film on a metal due to atmospheric exposure reduces its____________?
A. Stiffness
B. Toughness
C. Creep limit
D. All A., B. & C.
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C ?
A. Graphite
B. Stainless steel
C. Monel
D. Kel-F and Teflon
Most suitable material of construction for the storage of concentrated nitric acid is__________________?
A. Monel
B. Cast iron
C. Karbate
D. Aluminium or chromium alloys (Cr > 18% for cold acid)
A suitable material of construction to use with fuming sulphuric acid is_________________?
A. Nickel
B. Stainless steel type 304
C. Carbon steel
D. Monel
Steel tower used for the storage of oleum________________?
A. Is lined with rubber
B. Need not be lined
C. Is lined with lead
D. Is lined with acid-proof bricks
Nickel made/clad equipments are suitable for handling________________?
A. Sulphuric acid (concentrated)
B. Fruit juices, milk & its products and caustic soda solution
C. Nitric acid & hydrochloric acid (concentrated)
D. Ammonia (both aqueous & anhydrous)
Aluminium as a material of construction suffers from the disadvantage of__________________?
A. Scarce availability
B. Rather low tensile strength
C. Very low strength to weight ratio
D. Very high cost
Which metal is protected by the layer of its own oxide ?
A. Silver
B. Iron
C. Calcium
D. Aluminium
In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of_____________________?
A. Lead lined steel
B. Cast iron
C. Stainless steel
D. Rubber lined steel
White cast iron is not__________________?
A. Malleable
B. Brittle
C. Whitish in color
D. Strong and hard
Lead is_____________________?
A. Used as a cathodic material
B. Not resistant to corrosion
C. Not used as pigment (in its compound forms) for paints
D. Used as a shock absorber (in mattress form) between the foundation and steel framework of skyscraper buildings
Which one is remelted and poured into moulds to get cast iron ?
A. Low carbon steel
B. Pig iron
C. Wrought iron
D. Mild steel
The addition of antimony in tin-based alloys improves its________________?
A. Wear resistance
B. Impact strength and bonding strength
C. Deformation resistance
D. Rupture strength and hot hardness
All materials obey Hooke’s law within elastic limit. When elastic limit is reached, the tensile strain__________________?
A. Increases very quickly
B. Increases in proportion to stress
C. Decreases very quickly
D. Decreases in proportion to stress
Evaporators used in caustic soda recovery and production plant are made of_______________?
A. Monel metal
B. Wood metal
C. Gun metal
D. Babbitt metal
Sulphur melting pit in the sulphuric acid plant is made of__________________?
A. Cast iron
B. Lead lined stainless steel
C. Steel or cement-brick lined
D. Hard wood
Which of the following pairs of elements may form an alloy ?
A. Iron & carbon
B. Platinum & mercury
C. Iron & mercury
D. None of these
Copper has very low________________?
A. Ductility
B. Malleability
C. Tensile strength
D. Thermal & electrical conductivity
Refined acetic acid storage vessel are made of___________________?
A. Nickel
B. Aluminium
C. High carbon steel
D. Copper
Mild steel is used for making___________________?
A. Die block
B. Fish plates
C. Channels
D. Drop forging
Cast irons are generally specified by their_________________?
A. Hardness
B. Tensile strength
C. Carbon content
D. Manufacturing process
Furnace Technology Mcqs
Soap kettle used in the production of laundry soap is made of____________________?
A. Steel with top section nickel clad or stainless steel
B. Nickel
C. Cast iron
D. Concrete
Presence of nickel in steel improves its_________________?
A. Corrosion resistance
B. Wear resistance
C. Cutting ability
D. All A., B. and C.
Rubber lined pumps can be used to pump_________________?
A. Chlorinated brine
B. Caustic soda
C. Hypochlorous acid
D. All A., B. and C.
Ceramic recuperators are generally made of_________________?
A. Silicon carbide
B. Fireclay bricks
C. Calcium carbide
D. High alumina bricks
Kel-F is a material, which is________________?
A. Having elastomeric properties
B. Having excellent chemical & high temperature resistance (upto 200°C)
C. Chemically known as Polychlorotrifluoroethylene (PTFE)
D. All A., B. and C.
Zinc is not used__________________?
A. In its oxide form as pigments
B. For producing zinc base die casting alloys
C. As anode for corrosion prevention in boiler
D. As an alloying element in various bronzes
Concrete tank can be used to store________________?
A. Ferrous sulphate
B. Alum
C. Sulphuric acid
D. Saturated brine
Cast iron has very high___________________?
A. Compressive strength
B. Shock resistance
C. Ductility
D. Resistance to brittleness
Which of the following is not an alloy of nickel and chromium ?
A. Hastelloy
B. Inconel
C. Nimonic alloys
D. Duralumin
The hardest material just prior to diamond in Mho’s scale is___________________?
A. Carborundum
B. Topaz
C. Corundum
D. Calcite
The maximum percentage of chromium that can be added to steel is about____________________?
A. 24
B. 18
C. 12
D. 30
Residual magnetism in steel for magnets is increased by the addition of__________________?
A. Tungsten
B. Cobalt
C. Nickel
D. Chromium
Tank furnace used for melting of glass is made of___________________?
A. Cast iron
B. Mild steel
C. Refractory blocks
D. Stainless steel
The purpose of nitriding the steel is to___________________?
A. Harden its surface
B. Improve its reliability
C. Soften its surface
D. None of these
Maximum consumption of zinc is in____________________?
A. Utensil manufacture
B. Galvanising
C. Alloying
D. Electrical industry
Which of the following crystal structures characterises the austenitic stainless steel ?
A. Body centred cubic
B. Simple hexagonal
C. Face centred cubic
D. None of these
Corrosion resistance of steel is increased by the addition of_________________?
A. Lead and vanadium
B. Nickel and chromium
C. Phosphorous and tungsten
D. Molybdenum and tungsten
Liquid ammonia is shipped in _____________ containers?
A. Aluminium
B. Steel
C. Glass
D. Lead lined
Zinc is highly ______________ at room temperature?
A. Malleable
B. Resistant to atmospheric corrosion
C. Ductile
D. Brittle
Dielectric strength of a material is____________________?
A. A magnetic property
B. Its energy storage capacity
C. Its capacity to resist the flow of current
D. Its capacity to withstand high voltage
Monel alloy is____________________?
A. Not suitable for making kitchen utensils
B. The costliest of all the alloys of nickel
C. Used for making steam valves and turbine blades as it resists steam attack at high temperature
D. Not used in cast and wrought forms
Cementite is________________?
A. A compound of carbon and iron
B. Fe3C chemically
C. Characterised by an orthorhombic crystal structure
D. All A., B. and C.
Perspex is nothing but_____________________?
A. Acrylic sheet
B. An alloy of lead and tin
C. An elastomer
D. Aluminium foil clad with Bakelite
The impure iron (pig iron) that is tapped out from blast furnace contains about _____________ percent carbon?
A. 2
B. 0.2
C. 4
D. 8
Presence of high phosphorous in cast iron increases its____________________?
A. Fluidity
B. Shrinkage
C. Melting point
D. Tensile strength
Chemical Heat Transfer Mcqs
Coke oven regenerators are made of ______________ bricks?
A. Fire clay
B. Low thermal conductivity
C. Silica
D. High electrical conductivity
Addition of _____________ in steel can help in increasing the depth of hardness?
A. Chromium
B. Nickel
C. Vanadium
D. Tungsten
Fermenter used in the production of penicillin by deep fermentation process is a ______________ lined steel vessel ?
A. Monel
B. Rubber
C. Glass
D. Nickel
Which of the following is an alloy of nickel and copper ?
A. Duriron
B. Hastelloy
C. Monel
D. Inconel
Which of the following is not a nickel based alloy ?
A. Hastelloys
B. Inconel
C. Nimonics
D. Babbitt metal
Presence of silicon in steel_____________________?
A. Indicates that steel is not deoxidised properly
B. Is in the form of free Si
C. Decreases the blow holes formation tendency in castings
D. None of these
‘Hypersil’ is a ______________ steel?
A. Molybdenum
B. Silicon
C. High speed
D. Tungsten
H2SO4 (< 50% concentration) is corrosive to_________________?
A. Aluminium, mild steel, stainless steel, concrete & tin
B. Glass, graphite, porcelain & stoneware
C. Rubber (butyl and hard), silicone rubber & Teflon
D. Copper, cast iron & high silicon iron (14% Si)
Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its___________________?
A. High strength to weight ratio
B. Its ability to be cast, rolled, forged & stamped
C. Low temperature strength properties
D. High strength and corrosion & oxidation-resistance at elevated temperature
Cast iron has____________________?
A. High malleability
B. High ductility
C. Very high tensile strength
D. Its elastic limit very close to ultimate breaking strength
The most commonly used resin for making reinforced plastic is___________________?
A. Unsaturated polyester
B. Polyurethane
C. Polypropylene
D. Nylon-6
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is ______________________?
A. Used for making axle & shafts of aeroplanes, automobiles and locomotives
B. Having poor toughness
C. Having poor fatigue resistance
D. Not helpful in producing cleaner steel due to oxidising action of vanadium
Which of the following stainless steels is non-magnetic ?
A. Martenistic
B. Ferritic
C. Austenitic
D. None of these
Ceramic materials__________________?
A. Never exhibit polymorphism
B. Are poor electrical conductors due to lack of free electrons
C. Are exemplified by clay and mica
D. All A., B. and C.
Duralumin is an alloy of_________________?
A. Aluminium, copper and manganese
B. Aluminium and nickel
C. Aluminium, nickel and silicon
D. None of these
Hardening of steel is not possible unless it is heated ______________ critical point?
A. Between the first & second
B. Above the lowest
C. Above the highest
D. Between the second & third
DDT is shipped in_________________?
A. Paper bags
B. Stainless steel containers
C. Fibre drums
D. Either B. or C.
______________ is not a case hardening process?
A. Nitriding
B. Carburising
C. Cyaniding
D. Annealing
High degree of toughness is a must for__________________?
A. Cold work tool steel
B. Shock resisting steel
C. High speed steel
D. None of these
Which of the following is the easiest to bend ?
A. Stainless steel
B. Steel
C. Cast iron
D. Wrought iron
Vessels made of _____________ can be used to store dry chlorine?
A. Nickel
B. Thermoplastic materials
C. Steel or iron
D. None of these
Electronic structure of a material is generally studied by__________________?
A. Electron diffraction
B. Metallurgical microscope
C. Spectroscopic techniques
D. X-ray
Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of_________________?
A. Brass
B. Aluminium
C. High carbon steel
D. Copper