G.K. Practice Test: Question Set - 01
1. For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having
- (A) Low
melting point
- (B) High
resistance
- (C) High
melting point
- (D) Low
specific heat
2. For galvanizing iron which of the following metals is used?
- (A) Aluminium
- (B) Copper
- (C) Lead
- (D) Zinc
3. The element of an electric stove made
- (A) Copper
- (B) Invar
- (C) Magnalium
- (D) Nicrome
4. Chlorophyll is a naturally occurring chelate compound in which central metal is
- (A) Copper
- (B) Magnesium
- (C) Iron
- (D) Calcium
5. Quartz crystals normally used in quartz clocks etc. is chemically
- (A) Silicon
dioxide
- (B) Germanium oxide
- (C) A
mixture of germanium oxide and silicon dioxide
- (D) Sodium
silicate
6. The variety of coal in which the deposit contains recognizable traces of the original plant material is
- (A) Bitumen
- (B) Anthracite
- (C) Lignite
- (D) Peat
7. The gases used in different types of welding would include
- (A) Oxygen
and hydrogen
- (B) Oxygen,
hydrogen, acetylene and nitrogen
- (C) Oxygen,
acetylene and argon
- (D) Oxygen
and acetylene
8. The average salinity of sea water is
- (A) 3 %
- (B) 3.5 %
- (C) 2.5 %
- (D) 2 %
9. The group of metals Fe, Co, Ni may best called as
- (A) Transition
metals
- (B) Main
group metals
- (C) Alkali
metals
- (D) Rare
metals
10. Non stick cooking utensils are coated with
- (A) Teflon
- (B) PVC
- (C) Black paint
- (D) Polystyrene
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