Practice Test: Question Set - 31
1. Nickel is a constituent of
- (A) Bronze
- (B) Solder
- (C) Duralumin
- (D) Monel
metal
2. Which of the following has the least carbon percentage?
- (A) Low carbon steel
- (B) Mild steel
- (C) Wrought iron
- (D) White cast iron
3. Plate and frame filter press is usually made of
- (A) Mild steel
- (B) Cast iron
- (C) Stainless steel
- (D) Galvanized iron
4. The preferred material of construction for storage tanks for 98% sulphuric acid is
- (A) Aluminium
- (B) Lead
- (C) Stainless steel 316
- (D) Mild steel
5. The most resistant material to alkaline corrosion is
- (A) Duriron
- (B) Nickel
- (C) Aluminium
- (D) Karbate
6. Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of
- (A) Concrete
- (B) Steel
- (C) Zircaloy
- (D) Graphite
7. Which of the following is the lightest of engineering metals?
- (A) Magnesium
- (B) Aluminium
- (C) Titanium
- (D) Tin
8. In drop forging process, the forging is done by dropping the __________ at high velocity.
- (A) Hammer
- (B) Workpiece
- (C) Die
with hammer
- (D) Weight on hammer
9. For platinum thermocouples, lead wires are made of
- (A) Copper &
copper-nickel alloys
- (B) Copper & iron
- (C) Iron & nickel
- (D) Tin & nickel
10. The softest material just next to talc in the Mhos scale is
- (A) Quartz
- (B) Gypsum
- (C) Feldspar
- (D) Fluorite
11. Which of the following is the hardest?
- (A) Cementite
- (B) Pearlite
- (C) Austenite
- (D) Ferrite
12. Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C?
- (A) Silicone rubber,
teflon, porcelain and wood
- (B) Nickel, monel,
stainless steel and graphite
- (C) Aluminium, copper,
high silicon iron
- (D) Brass, cast iron,
mild steel and tin
13. Which is an amorphous material?
- (A) Glass
- (B) Mica
- (C) Brass
- (D) Cast iron
14. Lead
- (A) Is the hardest metal
in common use
- (B) Is the lightest metal
in common use
- (C) Cannot be scratched
by finger nails
- (D) Cannot be work
hardened
15. Which of the following has the highest density and the lowest melting point?
- (A) Stainless steel
- (B) Titanium
- (C) Lead
- (D) Aluminium
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