Practice Test: Question Set - 28
1. German silver is an alloy of
- (A) Zinc,
lead and nickel
- (B) Silver,
gold and lead
- (C) Copper,
nickel and zinc
- (D) Copper,
brass and zinc
2. For the manufacture of stainless steel, steel is mixed with
- (A) Chromium
- (B) Nickel
- (C) Tungsten
- (D) None
of these
3. The presence of original rounded surface on the manufactured piece of timber, is called
- (A) Wane
- (B) Torn
grain
- (C) Diagonal
grain
- (D) Chipmark
4. In paints, the pigment is responsible for
- (A) Durability
- (B) Color
- (C) Smoothness
- (D) Glassy face
5. The operation of removal of impurities or clay adhering to iron ores, is known as
- (A) Dressing
- (B) Calcination
- (C) Roasting
- (D) Smelting
6. Dry rot
- (A) Cracks
the timber
- (B) Reduces
the strength of timber
- (C) Reduces
the timber to powder
- (D) Spoils
the appearance of timber
7. Pozzolana (or surkhi) is used in lime
- (A) To
impart hydraulicity
- (B) To
prevent shrinkage
- (C) To
decrease the cost of construction
- (D) To
decrease the setting time
8. The size of modular bricks, is
- (A) 10 × 10 × 9
cm
- (B) 19 × 9 × 9
cm
- (C) 22.5 × 10 ×
8.5 cm
- (D) 22.5 × 8.0 ×
9 cm
9. Plywood is obtained by gluing wooden sheets at
- (A) 100
to 150 N/cm2
- (B) 100 to 130°C
- (C) Both
(A) and (B)
- (D) Neither (A)
nor (B)
10. The low voltage porcelain is mainly used for
- (A) Switch block
- (B) Insulating
tubes
- (C) Lamp sockets
- (D) All of these
11. The initial setting time of hydraulic lime, is
- (A) 30 minutes
- (B) 60 minutes
- (C) 90 minutes
- (D) 120 minutes
12. PVC stands for
- (A) Plastic very
compact
- (B) Polythene
vinyl chloride
- (C) Polythene
vinyl carbon
- (D) Polythene
vanadium carbide
13. Cement paints usually
- (A) Contain
hydrated lime
- (B) Contain 5%
to 10% color pigments
- (C) Contain
5% sodium chloride
- (D) All
the above
14. The kiln which may work throughout the year, is
- (A) Clamp
- (B) Bull's kiln
- (C) Hoffman's
kiln
- (D) None
of these
15. The main ingredient of a good quality brick earth, is
- (A) Magnesia
- (B) Lime
- (C) Silica
- (D) Alumina
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