Advanced Construction Materials Exam Questions MCQ Test - Set 10 - ObjectiveBooks

Advanced Construction Materials Exam Questions MCQ Test - Set 10

Practice Test: Question Set - 10

1. Mild steel is a/an __________ steel.
    (A) Low carbon
    (B) Medium carbon
    (C) High carbon
    (D) High alloy

2. Approximate value of the modulus of elasticity for steel is about __________ × 106kg/cm2.
    (A) 0.5
    (B) 2
    (C) 40
    (D) 75

3. Iron alloyed with carbon upto 2% is called
    (A) Pig iron
    (B) Wrought iron
    (C) High carbon steel
    (D) None of these

4. Carbon tetrachloride can be stored in a storage vessel made of
    (A) High silicon iron (14% Si)
    (B) Tin
    (C) Stainless steel
    (D) All (a), (b) and (c)

5. Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?
    (A) Cast iron
    (B) Steel
    (C) Nickel
    (D) Karbate

6. The main constituent of carborundum is __________ carbide.
    (A) Calcium
    (B) Silicon
    (C) Boron
    (D) Aluminium

7. Carbon content in steel is __________ percent.
    (A) 0.1-2
    (B) 4-6
    (C) 2-4
    (D) 0.001-0.01

8. Brass tubes are used in the manufacture of tubes of evaporators used in sugar and salt industries, mainly because of its
    (A) High co-efficient of thermal expansion
    (B) Low thermal conductivity
    (C) High corrosion resistance
    (D) All (a), (b) and (c)

9. Hastelloy comprises of
    (A) Copper and tin
    (B) Copper and nickel
    (C) Molybdenum and nickel
    (D) Lead and tin

10. Corrosion involves exchange of electrons in __________ corrosion.
    (A) Chemical
    (B) Electrochemical
    (C) Both (a) & (b)
    (D) Neither (a) nor (b)

11. Muntz metal is a/an alloys of
    (A) Magnesium & tin
    (B) Ferrous material
    (C) Lead & tin
    (D) Copper & zinc

12. A material capable of undergoing large permanent deformation, when subjected to tension is termed as
    (A) Friable
    (B) Ductile
    (C) Brittle
    (D) None of these

13. Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously.
    (A) Bismuth
    (B) Arsenic
    (C) Antimony
    (D) Both (b) and (c)

14. A material is called 'ductile', if it can be
    (A) Drawn into wires
    (B) Hammered to a thin sheet
    (C) Fractured without deformation
    (D) Made lustrous by heating it

15. Cast iron detachable joint is used in __________ pipes.
    (A) Steel
    (B) Cast iron
    (C) Asbestos cement
    (D) Reinforced cement concrete

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