Most Latest Competitive Chemical Engineering MCQs – Materials And Construction MCQs
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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:
Brinell Hardness Number (BHN) for talc is approximately in the range of____________________?
A. 100 -150
B. 20-30
C. 1-5
D. 200 – 250
Invar contains the highest percentage of___________________?
A. Tungsten
B. Iron
C. Vanadium
D. Cobalt
Percentage of silver in German silver is__________________?
A. 10
B. 5
C. 20
D. 0
Which of the following is not used as the ceramic material in „cermets‟?
A. Oxides
B. Silicides
C. Carbides
D. Nitrides
Brine (15% concentration) can be stored in a vessel made of____________________?
A. Monel
B. Cast iron
C. Karbate
D. None of these
Addition of tungsten to steel imparts___________________?
A. Corrosion resistance
B. Cutting hardness
C. Magnetic properties
D. Ductility
_____________ steel is widely used for the manufacture of motor car crankshafts?
A. Nickel
B. Silicon
C. Chrome
D. High speed
Phenol is not shipped in________________?
A. Boxed glass carboys
B. Galvanised or tin lined drums
C. Nickel lined steel tank cars
D. Cast iron containers
Silicon percentage in acid resistant cast iron is about________________?
A. 8
B. 4
C. 14
D. 20
A steel alloy containing 36% nickel is called _____________________, which has a zero co-efficient of expansion?
A. Heat resisting steel
B. Austenitic stainless steel
C. Invar
D. High speed steel
Bronze is an alloy of copper and _________________?
A. Nickel
B. Tin
C. Lead
D. Zinc
Which of the following has the poorest weldability ?
A. Mild steel
B. Low carbon steel
C. Wrought iron
D. High-carbon steel
Which of the following contains maximum percentage of carbon ?
A. Rail steel
B. Boiler plate steel
C. Saws for cutting steel
D. Railway spring steel
Hot working of lead is carried out at_________________?
A. 373° K
B. 75° C
C. 150° C
D. Room temperature
The digester of a Gobar gas plant is a___________________?
A. Stainless steel vessel
B. Mild steel drum
C. Masonry well
D. Cast iron vessel
Mild steel is ___________________?
A. A low carbon steel (0.05 to 0.3% carbon)
B. A high carbon steel (0.5 to 1.5% carbon)
C. Highly resistant to corrosion (as much as stainless steel)
D. Very poor in strength & ductility
The ability of a material to absorb energy in the elastic range is a measure of its __________________?
A. Malleability
B. Resilience
C. Toughness
D. Brittleness
______________ can replace tungsten in high speed steel ?
A. Vanadium
B. Chromium
C. Cobalt
D. Molybdenum
Which of the following is not an alloy of tin ?
A. Pewter type metal
B. White-bearing metal
C. Soft solder
D. German silver
When the steel is subjected to normalising, its ______________ decreases?
A. Ultimate tensile strength (UTS)
B. Ductility
C. Yield point
D. None of these
Concentrated HCl at 30°C can be stored in a vessel made of ________________________?
A. PTFE and porcelain
B. Stainless steel and high silicon cast iron
C. Cast iron and aluminium
D. None of these
German silver in an alloy of________________?
A. Copper, nickel and zinc
B. Silver, zinc and aluminium
C. Copper, aluminium and silver
D. Silver, nickel and zinc
Work hardening of a material ________________?
A. Increases its ductility
B. Decreases its ductility
C. Decreases its tensile strength
D. Does not affect its ductility
Which of the following is a non-magnetic material ?
A. Nickel
B. Zinc
C. Cobalt
D. None of these
18/8 steel is a/an __________ stainless steel ?
A. Austenitic
B. Martensitic
C. Ferritic
D. None of these
Percentage elongation of a material is a measure of its _______________________?
A. Ductility
B. Toughness
C. Brittleness
D. Malleability
Nuclear Power Engineering Mcqs
Tin vessels are corroded by____________________?
A. Aromatic solvents
B. Anhydrous ammonia
C. Synthetic detergent solution
D. None of these
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 HCI
D. None of these
Presence of high amount of silicon in cast iron________________?
A. Increases the contraction of the metal
B. Increases the formation of graphite
C. Suppresses the decomposition of Fe3C
D. Reduces its fluidity
The main purpose of galvanising iron sheets is to___________________?
A. Increase its glossiness and lustre
B. Harden the surface
C. Prevent the action of water
D. Prevent the action of oxygen
The temperature at which new grains are formed in the metal is called the ______________ temperature?
A. Upper critical
B. Recrystallisation
C. Eutectic
D. Lower critical
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 (1/20th of ordinary metals) ?
A. Invar
B. Chromel
C. Constantan
D. Alumel
Caustic soda can be stored in _____________ drums?
A. Steel
B. Brass
C. Cast iron
D. Gun metal
Addition of ______________ to the steel helps in increasing the residual magnetism in steel used for making magnets?
A. Nickel
B. Chromium
C. Tungsten
D. Cobalt
The material of construction of pressure mills used for squeezing out the juice from sugar cane is__________________?
A. Mild steel
B. Cast iron
C. Stainless steel
D. Monel
Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and_________________?
A. Moving mercury and carbon
B. Graphite and moving mercury
C. Moving mercury and graphite
D. Moving mercury and crimped steel wire
Most common stainless steel type 316, which is highly resistant to corrosion contains______________?
A. 16-13% Cr 10-14% Ni and 2-3% Mo
B. 2-4% Cr, 22% NI and 2-4% Mo
C. 20-22% Cr, and 8-10% Ni
D. None of these
Galvanised iron is___________________?
A. Alumina coated iron
B. Protected from rusting
C. Harder
D. None of these
Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
A. Sherardizing
B. Anodising
C. Parkerising
D. None of these
Cermets are ______________ materials?
A. Refractory
B. Abrasive
C. Reinforced
D. Fully metallic
Molten phthalic anhydride is stored in a/an _______________ vessel?
A. Aluminium
B. Lead lined steel
C. Nickel clad steel
D. Glass lined steel
18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
A. Vanadium, chromium and tungsten
B. Tungsten, chromium and vanadium
C. Tungsten, vanadium and chromium
D. Chromium, tungsten and vanadium
Generally _____________ are subjected to galvanising (i.e., zinc coating)?
A. Non-metals
B. Non-ferrous metals
C. Low carbon steels
D. Stainless steel
Which of the following is a light alloy ?
A. German silver
B. Dow metal
C. Monel metal
D. Babbitt metal
Which of the following is not a non-ferrous alloy ?
A. Meehanite
B. Gun metal
C. Magnalium
D. Muntz metal
Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of ______________ as mercury does not amalgamate with it?
A. Copper alloys
B. Copper
C. Stainless steel
D. Monel
100% H2SO4 at 30°C can’t be stored in a vessel made/lined with ___________________?
A. Mild steel and stainless steel
B. Cast iron and high silicon iron
C. Aluminium, tin and rubber
D. Teflon, glass and porcelain
A bearing metal should not have___________________?
A. High toughness
B. Low thermal conductivity
C. Low co-efficient of friction
D. Enough plasticity
Galvanising (i.e., zinc coating) of steel sheets is done to______________________?
A. Protect the base metal by cathodic protection
B. Prevent its rusting by contact with corrosive atmosphere
C. Both A. & B.
D. Neither A. nor B.
Fluid Mechanics Mcqs
Balls in a ball mill are usually made of__________________?
A. Steel
B. Stainless steel
C. Cast iron
D. Bronze
Spark plugs, ignition tubes and electrodes are made of nickel ____________ alloys?
A. Copper
B. Manganese
C. Beryllium
D. Iron
Diamagnetic materials are magnetised________________?
A. Only slightly
B. Strongly
C. With eddy currents only
D. In a direction opposite to that of the applied field
Hydrochloric acid is stored in a _____________ steel vessel?
A. Glass lined
B. Rubber lined
C. Lead lined
D. Stainless
For spinning viscose rayon, the extrusion spinnerettes are made of ___________________?
A. Platinum or gold alloys
B. Aluminium
C. High carbon steel
D. Nickel
Atmospheric corrosion of metals result from their________________?
A. Slow oxidation
B. Fast hydration
C. Fast oxidation
D. Slow dehydration
Babbitt metal used for bearings is a ____________base alloy?
A. Tin
B. Aluminium
C. Lead
D. Copper
Ability of a material to ______________ is indicated by its damping capacity?
A. Absorb shock
B. Absorb vibration
C. Withstand compression
D. None of these
Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with_____________________?
A. Fireclay bricks
B. Lead or glass
C. Karbate
D. PVC
The material used in the filament of electric bulbs is_________________?
A. Constantan
B. Tungsten
C. Nichrome
D. German silver
Constituents of stellite are__________________?
A. Zinc, aluminium and nickel
B. Cobalt, chromium and tungsten
C. Zinc, copper and nickel
D. Nickel, cobalt and vanadium
The phenomenon in which slow extension of material takes place with the time at constant load is called________________?
A. Elasticity
B. Creep
C. Plasticity
D. Ductility
The malleability 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 maximum malleability ?
A. Lead
B. Aluminium
C. Copper
D. Wrought iron
Nuclear Power Engineering Mcqs
Sherardizing process is used for__________________?
A. Surface coating
B. Cold working on metals
C. Heat treatment of high speed steel
D. None of these
Graphite is a good________________?
A. Thermal & electrical insulator
B. Conductor of electricity
C. Conductor of heat
D. Both B. & C.
Iron rust is_________________?
A. Powdered iron
B. Hydrated ferric oxide
C. Ferrous oxide
D. Ferric sulphide
Glass lined vessels are not used for handling/storing__________________?
A. Dilute HNO3
B. Dilute H2SO4
C. Dilute HCl
D. Hydrofluoric acid
A material is able to retain the deformation permanently by virtue of its___________________?
A. Ductility
B. Plasticity
C. Elasticity
D. Malleability
Fatigue failure of a material results from ______________ stress?
A. Compressive
B. Tensile
C. Fluctuating
D. None of these
Fatigue failure of a material results from _____________ stress?
A. Compressive
B. Tensile
C. Fluctuating
D. None of these
In a plate type heat exchanger, heat transfer plates are never made of _________________?
A. Titanium
B. Cast iron
C. Stainless steel
D. Hastelloy C
Spray dryer for evaporating milk to produce milk powder is made of_________________?
A. Aluminium
B. Stainless steel
C. Lead lined steel
D. Cast iron
Rubber lined vessels are corroded by the action of__________________?
A. Chloroform
B. Aqua regia
C. Sulphuric acid (95%)
D. All A., B. and C.
Wrought iron is ____________________?
A. Highly resistance to acid corrosion
B. High carbon iron
C. Malleable & ductile; and hence is used for chain links, hooks & couplings
D. An alloy of iron, chromium & carbon
Alpha iron is stable ______________ °C?
A. Above 1800
B. Upto 910
C. Above 1403
D. Between 910 & 1403
The softest material in Mho’s scale (for measuring hardness) is________________?
A. Talc
B. Rubber
C. Gypsum
D. None of these
Cold work tool steel should have_________________?
A. Poor hardenability
B. High toughness
C. High wear resistance
D. All A., B. & C.
Zircaloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium_______________?
A. Tin, nickel, iron and chromium
B. And copper
C. And graphite
D. None of these
An alloy of iron containing 4% carbon is called________________?
A. Wrought iron
B. High carbon steel
C. Mild steel
D. None of these
_____________ is used for examining the macro-structure of a material?
A. Optical microscope
B. Metallurgical microscope
C. X-rays
D. Visual inspection by naked eye
Acetaldehyde is shipped in ____________ drums?
A. Cast iron
B. Aluminium
C. Steel
D. Either B. & C.
Rotary driers are generally made of_______________?
A. Tin lined with refractory bricks
B. Mild steel
C. High silicon iron (14% Si)
D. Cast iron
Fatigue failure of a material may occur, when it is subjected to _____________ stress?
A. Fluctuating
B. Compressive
C. Tensile
D. Torsion
Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property ?
A. Silicon
B. Sulphur
C. Phosphorus
D. None of these
Ball bearings are generally made of___________________?
A. Stainless steel
B. Chrome carbon steel
C. Plain carbon steel
D. Malleable cast iron
Hardest materials so far found is_________________?
A. Diamond
B. Carborundum
C. Graphite
D. Pumice stone
The presence of impurities in iron_________________?
A. Does not affect its melting point
B. Increases its melting point
C. Decreases its melting point
D. Makes it malleable
Molybdenum steels containing 0.15 to 0.40% molybdenum___________________?
A. Have very poor fatigue resistance
B. Are used for automobile parts like gears, axle, shaft, bearings etc.
C. Are prone to temper brittleness
D. Do not contain nickel or chromium or both
Carbon is present in the uncombined (graphitic) form in case of__________________?
A. Cast iron
B. Ferroalloy
C. Steel
D. None of these
Nickel and molybdenum are the basic constituents of___________________?
A. Hastelloy
B. Inconel
C. German silver
D. Solder
Constantan used in thermocouples is an alloy of___________________?
A. Copper & aluminium
B. Iron & copper
C. Lead & tin
D. None of these
Tempering of steel is done to make it_________________?
A. Hard
B. Brittle
C. Rollable
D. Soft
Hydrochloric acid absorber in made of___________________?
A. Mild steel
B. Cast iron
C. Karbate
D. Stainless steel
Most suitable material for high pressure vessel operating at 500 atm. and 500° C is__________________?
A. Molybdenum stainless steel
B. Mild steel
C. 18/8 stainless steel
D. High silicon iron (14% Si)
Metalloid is__________________?
A. An alloy
B. An element which exhibits the properties of both metal & non-metal
C. Highly electronegative in nature
D. All A., B. and C.
The ability of a material to offer resistance to scratching or indentation is a measure of its_________________?
A. Toughness
B. Brittleness
C. Hardness
D. Resilience
In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of _______________?
A. Wood
B. Concrete
C. Steel
D. Porcelain
A magnetic material becomes ____________ above the Curie temperature?
A. Diamagnetic
B. Ferromagnetic
C. Paramagnetic
D. None of these
Common house hold glass (i.e., soda-lime glass) is a/an _____________ material?
A. Amorphous
B. Partly crystalline
C. Fully crystalline
D. None of these
Carbon content in plain carbon steel is ______________ percent?
A. 0.65 to 0.80
B. 0.35 to 0.45
C. 0.1 to 0.15
D. 0.85 to 1.2