Practice Test: Question Set - 27
1. Cast iron and steel pipes are produced by __________ casting.
- (A) Die
- (B) Investment
- (C) Slush
- (D) True
centrifugal
2. Ceramic recuperators are generally made of
- (A) Silicon carbide
- (B) Calcium
carbide
- (C) Fireclay bricks
- (D) High alumina bricks
3. Dilute sulphuric acid is transported in __________ pipes.
- (A) Mild steel
- (B) Lead
- (C) Copper
- (D) Special alloys
4. Rubber lined pumps can be used to pump
- (A) Caustic soda
- (B) Chlorinated brine
- (C) Hypochlorous acid
- (D) All (a), (b) and (c)
5. To improve the machinability of steel, it is generally subjected to
- (A) Spheroidising
- (B) Tempering
- (C) Normalizing
- (D) Annealing
6. Presence of nickel in steel improves its
- (A) Corrosion
resistance
- (B) Cutting ability
- (C) Wear resistance
- (D) All (a), (b) and (c)
7. Water gas generator is made of
- (A) Carbon steel-brick
lined
- (B) Stainless steel-lead
lined
- (C) Cast iron
- (D) High carbon steel-porcelain lined
8. Soap kettle used in the production of laundry soap is made of
- (A) Steel with top
section nickel clad or stainless steel
- (B) Cast iron
- (C) Nickel
- (D) Concrete
9. Cold worked steel parts are normally subjected to
- (A) Normalizing
- (B) Hardening
- (C) Annealing
- (D) Shot peening
10. Cast irons are generally specified by their
- (A) Carbon content
- (B) Tensile strength
- (C) Hardness
- (D) Manufacturing process
11. Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of
- (A) Rubber lined mild
steel
- (B) Lead lined mild steel
- (C) Aluminium
- (D) Cast iron
12. Mild steel is used for making
- (A) Fish plates
- (B) Die block
- (C) Channels
- (D) Drop forging
13. Lead alone is not used in storing equipment, because it
- (A) Is very costly
- (B) Corrodes easily
- (C) Is having low creep
strength
- (D) None of these
14. Refined acetic acid storage vessel are made of
- (A) Copper
- (B) Aluminium
- (C) High carbon steel
- (D) Nickel
15. Slow and progressive deformation of a material with time under constant stress is called
- (A) Creep
- (B) Erosion
- (C) Resilience
- (D) None of these
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