New Competitive Chemical Engineering MCQs – Latest Materials And Construction MCQs

New Competitive Chemical Engineering MCQs – Latest 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

By practicing these MCQs of Chemical Materials And Construction MCQs – Latest Competitive Chemical Engineering MCQs , an individual for exams performs better than before. This post comprising of mechanical engineering objective questions and answers related to Materials And Construction Mcqs “. As wise people believe “Perfect Practice make a Man Perfect”. It is therefore practice these mcqs of mechanical engineering to approach the success. Tab this page to check “Chemical Materials And Construction Mcqs” for the preparation of competitive mcqs, FPSC mcqs, PPSC mcqs, SPSC mcqs, KPPSC mcqs, AJKPSC mcqs, BPSC mcqs, NTS mcqs, PTS mcqs, OTS mcqs, Atomic Energy mcqs, Pak Army mcqs, Pak Navy mcqs, CTS mcqs, ETEA mcqs and others.

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:

Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about_______________?

A. One third
B. Half
C. One fifth
D. One twelfth

Which of the following has a very high carbide forming tendency in steels ?

A. Chromium
B. Silicon
C. Nickel
D. Vanadium

Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?

A. Silicon steel
B. Molybdenum steel
C. Chromium steel
D. None of these

Silicon percentage in iron castings to have maximum hardness should be about__________________?

A. 0.5
B. 0.3
C. 0.8
D. 2.5

The electrical conductivity of a ______________ decreases with rise in temperature?

A. Metal/alloy
B. Dielectric
C. Semi-conductor
D. None of these

18/8 stainless steel means, that it contains__________________?

A. 18% chromium and 8% nickel
B. 18% nickel and 8% chromium
C. 18% chromium and 8% molybdenum
D. 18% molybdenum and 8% chromium

Aqueous nitric acid is stored in ______________ vessel?

A. Stainless steel
B. Plain carbon steel
C. Cast iron
D. Thermosetting plastic material

High speed steel should have high___________________?

A. Toughness
B. Hardenability
C. Wear resistance
D. Both B. & C.

Anodic material used for the cathodic protection of underground buried steel pipeline is_________________?

A. Bronze
B. Zinc or magnesium
C. Nickel or copper
D. Brass

Wrought iron is a suitable material of construction for handling _____________ solutions?

A. Concentrated acidic
B. Dilute acidic
C. Alkalis & alkaline
D. None of these

Galvanising is generally done on___________________?

A. Stainless steel
B. Low carbon steel
C. Non-ferrous metals
D. Cast iron

Vycor, a widely used material for making ‘thermal wells’ in temperature measurement, is a_______________?

A. Metallic alloy
B. Glass
C. Thermosetting plastic
D. Cermet

Dry chlorine can be handled in a vessel made of__________________?

A. Iron or steel
B. Nickel
C. PVC
D. Brass

Combination of metals and ceramics are called___________________?

A. Pellets
B. Cermets
C. Metalloy
D. Non-crystalline ceramics

Biological shield in a nuclear power reactor is made of________________?

A. Concrete
B. Cadmium
C. Steel
D. Zircaloy

Plant-Economics Mcqs

As the impurities are oxidised, the melting point of iron___________________?

A. Remains unchanged
B. Decreases
C. Increases
D. May increase or decrease; unpredictable

Nitriding of steel is a process for________________?

A. Case hardening
B. Normalising
C. Spheroidising
D. Annealing

German silver is an alloy of copper, nickel and________________?

A. Zinc
B. Tin
C. Silver
D. Lead

Which of the following finds the least commercial use ?

A. Pure iron
B. Low carbon steel
C. High silicon iron
D. High carbon steel

Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of__________________?

A. Stainless steel or glass lined steel
B. High silicon cast iron
C. Nickel clad steel
D. Aluminium

Among the tin containing alloys, ______________ consumes the maximum amount of tin?

A. Solder
B. Pewter metal
C. White metal
D. Bronzes

Presence of nitrogen in steel___________________?

A. Makes it brittle
B. Increases its hardness
C. Increases its strength
D. Is desirable

_____________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working?

A. Screw dislocation
B. Solid solution hardening
C. Strain ageing
D. Twinning

Beehive coke ovens are made of ________________ bricks?

A. Silica
B. Corundum
C. Silicon carbide
D. Fireclay

Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system ?

A. High silicon iron, silicon rubber, Kel-F and Teflon
B. Cast iron, tin and aluminium
C. Mild steel and stainless steel
D. Copper, nickel and Monel

Lead pipes are not safe for carrying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)2. Lead pipes are readily corroded by___________________?

A. Concentrated H2SO4
B. Acetic acid
C. Dilute HCl
D. None of these

Nickel as a material of construction__________________?

A. Is used as an alloying element for both ferrous & non-ferrous alloys
B. Diamagnetic
C. Is paramagnetic below 415° C (its Curie temperature)
D. Has a body centred cubic (bcc) crystal lattice structure

Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower_________________?

A. Corrosion resistance
B. Price
C. Thermal conductivity
D. Abundant availability

Glass is corroded by________________?

A. Fluorine (dry or wet)
B. Phosphoric acid
C. Sulphuric acid
D. None of these

Nickel base alloys with ______________ are known as monel metal?

A. Tin
B. Zinc
C. Copper
D. Molybdenum

How many atoms are there per unit cell in a body centred cubic lattice system ?

A. 5
B. 6
C. 3
D. 2

Bush bearings are made of______________________?

A. White metal alloys
B. Phosphorous bronze
C. Mild steel
D. None of these

Presence of cobalt in steel improves its____________________?

A. Cutting ability
B. Tensile strength
C. Corrosion resistance
D. None of these

A hardness depth of about 3 mm can be achieved by induction hardness in ______________ seconds?

A. 5
B. 250
C. 100
D. 500

Wrought iron is having very high ________________?

A. Strength
B. Hardness
C. Corrosion resistance
D. Susceptibility to changes in its properties by heat treatment

Rotary kilns in cement industry are lined with _____________bricks?

A. Silica
B. Fireclay
C. Lead
D. High alumina & high magnesia

Post weld heat treatment is done by____________________?

A. Tempering
B. Stress relieving
C. Normalising
D. Solution annealing

High speed steel tools retain their hardness upto a temperature of _____________ °C?

A. 750
B. 500
C. 900
D. 1100

When iron is rusted, it is__________________?

A. Reduced
B. Converted to a fine powder
C. Oxidised
D. None of these

Caustic soda is transported in _____________ lined containers ?

A. Glass
B. Neoprene
C. Nickel
D. Either B. or C.

_______________ is a donor impurity for semi-conductors ?

A. Gallium
B. Antimony
C. Boron
D. None of these

Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?

A. Yield point
B. Ultimate
C. Proof
D. None of these

How many molecules per unit cell are there in a face centred cubic lattice ?

A. 6
B. 4
C. 2
D. 8

‘Semi steel’ is__________________?

A. Stronger than cast iron
B. Produced by adding 10-20% steel to the cupola charge
C. Both A. and B.
D. Neither A. nor B.

Which one occupies the lowermost position in the electromotive series of metals ?

A. Zinc
B. Noble metals (Ag, Pt, Au)
C. Aluminium
D. Alkali metals (K, Na, Li)

Ferric stainless steels compared to austenitic stainless steels________________?

A. Are harder to fabricate
B. Have lower corrosion resistance
C. Are less ductile and hence less suitable for cold pressing
D. All A., B. and C.

Materials And Construction Mcqs

Reduction in the grain size reduces the _______________ of the material?

A. Tensile strength
B. Fatigue resistance
C. Creep resistance
D. All A., B. & C.

______________ iron is produced, when molten pig iron is allowed to cool gradually?

A. Wrought
B. Grey cast
C. White cast
D. None of these

Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with__________________?

A. Rubber
B. Acidic refractory
C. Karbate
D. Lead or acid-proof bricks

Maximum carbon content in cast iron is ______________ percent?

A. 5.2
B. 3.8
C. 4.8
D. 4.3

Cast iron is__________________?

A. Manufactured in cupola and is brittle
B. Used for making shock resisting parts
C. Having compressive strength more than its tensile strength
D. All A., B. & C.

Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with______________?

A. Acidic refractory
B. Karbate
C. Rubber
D. Lead or acid proof bricks

Manganese in steel affects its__________________?

A. Ductility
B. Hardness
C. Tensile strength
D. None of these

High carbon steel contains more than _____________ percent carbon?

A. 0.5
B. 2.5
C. 2.2
D. 2.8

Which of the following has no effect on the carbide forming tendency in steels ?

A. Chromium
B. Phosphorus
C. Molybdenum
D. Vanadium

Mild steel storage vessels are suitable for the storage of___________________?

A. Anhydrous ammonia
B. Hydrochloric acid (95%)
C. Fatty acids
D. Sulphuric acid (25%)

The increase in hardness of metal due to its cold working is termed as the _______________ hardening?

A. Work
B. Induction
C. Age
D. Flame

Which one has the maximum tensile strength out of the following ?

A. Nodular cast iron
B. White cast iron
C. Pig iron
D. Grey cast iron

Wrought iron is a suitable material of construction for handling _____________ solutions?

A. Concentrated acidic
B. Dilute acidic
C. Alkalis & alkaline
D. None of these

Inconel is an alloy of_________________?

A. Copper and nickel
B. Iron, nickel and chromium
C. Tin, zinc and nickel
D. Copper and tin

Mixing vessel used for the chlorination of methane to produce methyl chloride is made of___________________?

A. Aluminium
B. Cast iron
C. Copper
D. High carbon steel

The high expansion metal normally used in the bimetallic thermometer is _______________ temperature measurement?

A. Nickel alloys for high
B. Brass for low
C. Both A. & B.
D. Aluminium for all

Fluid Mechanics Mcqs

High speed cutting tool steels contain about _______________ percent of tungsten?

A. 30-35
B. 18-20
C. 6-8
D. 50-55

Hydrochloric acid is stored in a ________________vessel?

A. Stainless steel
B. Rubber lined steel
C. Lead lined steel
D. Cast iron

The chlorinator used in the manufacture of DDT is made of___________________?

A. Teflon
B. Glass lined steel
C. Glass
D. Bakelite

__________________ does not contain copper as an alloying element?

A. Nichrome
B. Perminvar
C. Manganin
D. Monel metal

In SO3 absorber (Contact Process), packing material used is of________________?

A. Karbate
B. Chemical stoneware
C. Cast iron
D. Mild steel

Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its__________________?

A. Tensile strength
B. Corrosion resistance
C. Machinability
D. Compressive strength

Bearings subjected to light load are made of________________?

A. Monel
B. Phosphorous bronze
C. White metal
D. Silicon bronze

With increase in the carbon percentage in the steel, its__________________?

A. Ductility reduces
B. Hardness increases
C. Tensile strength increases
D. All A., B. and C.

Which of the following has the least value of ultimate tensile strength (UTS) ?

A. High carbon steel
B. Medium carbon steel
C. Cast iron
D. Wrought iron

To improve the machinability of steel by its softening, it is subjected to __________________?

A. Shot blasting
B. Annealing
C. Cold working
D. Heating

Bog iron used for the adsorption of H2S from coke oven gas is___________________?

A. An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
B. Carbon free iron
C. Iron impregnated with resin (usually Bakelite)
D. None of these

The specific gravity of coal depends mainly on its ______________ content?

A. Volatile matter
B. Carbon
C. Ash
D. Moisture

Bell metal is an alloy of __________________?

A. Copper & nickel
B. Copper & tin
C. Copper & zinc
D. Zinc & tin

Hastelloy C is a good material of construction in chemical process industry, since it is ___________________?

A. Corrosion resistant to most alkalis, particularly because of its copper content
B. Relatively inexpensive although it can be fabricated with some difficulty
C. Highly corrosion resistant and is readily fabricated
D. Light and resists attack by acids

Most of the common metals have ______________ crystal structure?

A. Cubic
B. Orthorhombic
C. Hexagonal
D. None of these

Ball bearings are normally made of _____________ steel?

A. High carbon
B. High speed
C. Chrome
D. Silicon

Condenser tubes are not made of_________________?

A. Muntz brass
B. Cartridge brass
C. Wood metal
D. Aluminium brass alloy

Evaporator used for concentrating tomato juice is made of __________________?

A. Brass
B. Nickel
C. Stainless steel-glass lined
D. Cast iron-rubber lined

Lead lined equipments & vessels are suitable for handling __________________?

A. Nitric acid
B. Hydrochloric acid (10%)
C. Sulphuric acid upto 60°C
D. All A., B. and C.

Carbon is present in steel wholly in the__________________?

A. Combined form
B. Free state as graphite
C. Both of the above
D. Neither of the above

Mild steel is a/an _____________ steel?

A. Low carbon
B. High carbon
C. Medium carbon
D. High alloy

Maximum permissible sulphur content in steel is ______________ percent?

A. 0.505
B. 0.055
C. 0.015
D. 0.805

Maximum consumption of lead is in the manufacture of _________________________?

A. Storage batteries
B. Electric cable sheathing
C. Solder alloys
D. Lead lined vessels

Karbate is____________________?

A. A mixture of iron dust and saw dust
B. An acid resistant material
C. Carbon impregnated with resin (usually Bakelite)
D. Both B. and C.

Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the__________________?

A. Elastic limit
B. Endurance limit
C. Ultimate tensile strength (U.T.S.)
D. None of these

Cast iron is having very high ___________________?

A. Proximity between its elastic limit and ultimate breaking strength
B. Tensile strength
C. Ductility
D. All A., B. and C.

Lead pipe is_____________________?

A. Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain
B. Usually joined by burning (e.g. by melting to adjacent pieces with a torch)
C. Especially resistant to solutions containing H2SO4
D. All A., B. and C.

The crystal structure of most of the common metals is_____________________?

A. Hexagonal
B. Cubic
C. Orthorhombic
D. None of these

Spark plugs are made of______________________?

A. High alumina ceramic
B. Corundum
C. Metallic carbides
D. Carborundum

In cold working of metal as compared to its hot working____________________?

A. Ductility and impact strength improves
B. Cracks and blow holes are eliminated
C. Appreciable strain hardening is produced
D. Yield stress, hardness and fatigue strength is not at all affected

‘Age hardening’ of duralumin is due to____________________?

A. Magnesium
B. Copper
C. Both A. & B.
D. Neither A. nor B.

The softest material just next to talc in the Mho’s scale is___________________?

A. Feldspar
B. Gypsum
C. Quartz
D. Fluorite

Which of the following comprises of hydrocarbons ?

A. Glass
B. Mica flakes
C. Rubber
D. None of these

Alinco, which is a aluminium-cobalt-nickel steel, is used for making __________________?

A. Chemical equipments
B. Powerful magnets
C. Surgical instruments
D. Boiler tubes

Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ____________________?

A. Benzoic & boric acids
B. Acetic acid
C. Phosphoric acid (95%) & sulphuric acid (95%)
D. Hydrochloric acid (concentrated)

New Competitive Chemical Engineering MCQs – Latest Materials And Construction MCQs

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