chemical engineering materials and construction MCQs – Page 7

Practise multiple-choice questions from chemical engineering materials and construction for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering materials and construction Mcqs

121. Hydrochloric acid absorber in made of___________________?
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A. Karbate

B. Cast iron

C. Mild steel

D. Stainless steel

122. Acetylene gas holder is made of__________________?
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A. Cast iron

B. Steel

C. Monel metal

D. Copper

123. 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) ?
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A. Alumel

B. Constantan

C. Invar

D. Chromel

124. Residual magnetism in steel for magnets is increased by the addition of__________________?
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A. Tungsten

B. Cobalt

C. Chromium

D. Nickel

125. Monel alloy is____________________?
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A. Not used in cast and wrought forms

B. Used for making steam valves and turbine blades as it resists steam attack at high temperature

C. Not suitable for making kitchen utensils

D. The costliest of all the alloys of nickel

126. The ability of a material to absorb energy in the elastic range is a measure of its __________________?
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A. Resilience

B. Malleability

C. Toughness

D. Brittleness

127. 18/8 steel is a/an __________ stainless steel ?
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A. Martensitic

B. Austenitic

C. Ferritic

D. None of these

128. Which of the following is not used as the ceramic material in cermets??
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A. Silicides

B. Oxides

C. Nitrides

D. Carbides

129. Which of the following is not a non-ferrous alloy ?
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A. Magnalium

B. Meehanite

C. Muntz metal

D. Gun metal

130. Tank furnace used for melting of glass is made of___________________?
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A. Refractory blocks

B. Stainless steel

C. Cast iron

D. Mild steel

131. SO3 is absorbed using H2SO4 in a____________________?
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A. Stainless steel plate tower

B. None of these

C. Packed steel tower lined with acid proof bricks

D. Cast iron packed tower

132. The material used in the filament of electric bulbs is_________________?
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A. German silver

B. Tungsten

C. Constantan

D. Nichrome

133. Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making________________?
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A. Shear blades

B. Shafts

C. Gears

D. Flanges

134. Specify the material of construction suitable for handling concentrated HNO3 at 100C ?
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A. Silicone rubber

B. Stainless steel

C. Tin and wood

D. High silicon iron, Kel-F and Teflon

135. Glass lined vessels are not used for handling/storing__________________?
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A. Dilute H2SO4

B. Hydrofluoric acid

C. Dilute HCl

D. Dilute HNO3

136. Phenol is not shipped in________________?
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A. Galvanised or tin lined drums

B. Nickel lined steel tank cars

C. Cast iron containers

D. Boxed glass carboys

137. Which of the following pairs of elements may form an alloy ?
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A. None of these

B. Iron & carbon

C. Platinum & mercury

D. Iron & mercury

138. Electronic structure of a material is generally studied by__________________?
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A. Electron diffraction

B. Metallurgical microscope

C. Spectroscopic techniques

D. X-ray

139. Graphite is corroded by_________________?
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A. None of these

B. Sulphuric acid (10%)

C. Sea water

D. Hydrochloric acid

140. Caustic soda can be stored in _____________ drums?
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A. Gun metal

B. Brass

C. Cast iron

D. Steel

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