Practice Test: Question Set - 18
1. In a rock calcium carbonate predominates. State whether it is :
- (A) Siliceous
rock
- (B) Argillaceous
rock
- (C) Calcareous
rock
- (D) None of these
2. The cracks which extend from bark towards the sap wood in the cross section of a tree, are called
- (A) Radial
shakes
- (B) Star shakes
- (C) Heart
shakes
- (D) Cup
shakes
3. The steel used for rails under heavy traffic and on sharp curves, is
- (A) Nickel
steel
- (B) Chrome
steel
- (C) Manganese
steel
- (D) Vanadium
steel
4. The steel used in R.C.C. work is
- (A) Stainless
steel
- (B) Mild
steel
- (C) High
carbon steel
- (D) Wrought
iron
5. Pick up the rock which is not a sedimentary rock from the following:
- (A) Gravel
- (B) Sand
stone
- (C) Gypsum
- (D) Dolerite
6. Acrylic is the name of
- (A) Cellulose
resin
- (B) Alkyd resin
- (C) Methyl methacrylate
- (D) Cumarone-indene
7. The PVC doors and windows are preferred as they are
- (A) Rust proof
- (B) Rot
proof
- (C) Water
proof
- (D) All
of these
8. The sequence of refractory materials according to increasing melting points is:
- (A) Dolomite,
Magnesia, Bauxite, Chromites
- (B) Bauxite,
Chromites, Dolomite, Magnesia
- (C) Magnesia,
Bauxite, Dolomite, Chromites
- (D) None
of these
9. Upto a maximum of 72% of iron, is available in
- (A) Magnetite
- (B) Limonite
- (C) Siderite
- (D) Iron
pyrites
10. The melting point of silica is:
- (A) 1570°C
- (B) 1630°C
- (C) 1730°C
- (D) 1850°C
11. Lime stones are generally known as
- (A) Aqueous
rocks
- (B) Sedimentary
rocks
- (C) Stratified
rocks
- (D) All
the above
12. Stones used for rubble masonry must be
- (A) Soft
- (B) Hard
- (C) Light
- (D) Heavy
13. The property by virtue of which lime sets under water, is known as
- (A) Slacking
- (B) Setting
- (C) Hydraulicity
- (D) Calcining
14. Porcelain is used as:
- (A) Sanitary
wares
- (B) Electric
insulators
- (C) Storage
vessels
- (D) Reactor
chambers
15. The lime which contains high percentage of calcium oxide, is generally called
- (A) Fat
lime
- (B) Rich
lime
- (C) White
lime
- (D) None
of these
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