Geology Model Test Paper
Geology Practice Test Paper
Q.1: Which is cubic Zeolite:
a) Natrolite
b) Analcite
c) Stilbite
d) Phillipsite
Answer. (b)
Q.2: Sapphire is a blue transparent variety of:
a) Diamond
b) Quartz
c) Topaz
d) Corundum
Answer. (d)
Q.3: Ultrabasic basalt rich in olivine is called
(a) Oceanite.
(b) Klmberlite.
(c) Norite
(d) ljolite.
Answer. (a)
Q.4: What is diagnostic character of hematite:
a) Its red colour.
b) Its cherry-red strike
c) Its hardness
d) Its lusture
Answer. (b)
Q.5: Molybdenite is a/an...... of molybdenum:
a) Sulphate
b) Sulphide
c) Oxide
d) Carbonate
Answer. (d)
Q.6: Ultrabasic and eclogite xenoliths from mantle sources are found in:
(a) Panna Kimberlites.
(b) Wajrakaru Kimberlites.
(c) Kishangarh Nepheline Syenites.
(d) Dongargarh Granites.
Answer. (b)
Q.7: Millerite is sulphide of:
a) Copper
b) Silver
c) Cobalt
d) Nickel
Answer. (d)
Q.8: The minerals marialite and meionite belong to:
a) Zeolite family
b) Scapolite family
c) Feldsphathoid family
d) Melilite family
Answer. (b)
Q.9: Mark the correct order of stages of cooling and crystallisation of a magma:
(a) Orthomagmatic, Pneumatolylic, Hydrothermal and pegmatitic
(b) Pegmatitic, Pneumatolytic, Orthomagmatic and Hydrothermal.
(c) Orthomagmatic, Pegmatitic, Pneumatolytic and Hydrothermal.
(d) Hydrothermal, Pegmatitic, Orthomagmatic and Pneumatolytic.
Answer. (c)
Q.10: Anglesite is:
a) Lead Sulphate
b) Lead Sulphide
c) Zinc Suplhate
d) Zinc Oxide
Answer. (a)
Q.11: Which metal can be obtained from Anatase and Brookite:
a) Aluminium
b) lron
c) Titanium
d) Strontium
Answer. (c)
Q.12: Kimberlite is a variety of:
(a) Dumile.
b) Pyroxerlite.
c) Peridotite
d) Syenite.
Answer. (c)
Q.13: Which mineral is extremly common in sheaflike aggregate form:
a) Natrolite
b) Stilbite
c) Analcite
d) Mesolite
Answer. (b)
Q.14: Ultrabasic basalt rich ln augite is called:
a) Oceanite.
b) Diabase.
c) Kimberlite.
d) Ankaramite.
Answer. (d)
Q.15: Rutile is characterized by:
a) Its brow - red colour
b) Its acicular form
c) Its geniculate twinning
d) Its hardness.
Answer. (c)
Q.16: A rock composed of about 50% nephaline and rest consisting of other matic minerals
is generally known as:
(a) Dunite.
(b) Kimberlite
(c) Iiolite.
(d) Pulaskite.
Answer. (c)
Q.17: Phacolite is a variety of:
a) Chabazite
b) Stilbite
c) Analite
d) Laumontite
Answer. (a)
Q.18: The first minerals to crystallise from a completely or almost anhydrous melt at high
temperature are called:
(a) Hydatogenetic minerals.
(b) Pyrogenetic minerals.
(c) Pegmatitic minerals.
(d) Orthomagmatic minerals.
Answer. (b)
Q.19 Present of water in the melt causes:
(a) Lowering of the solidus and liquidus temperatures.
(b) Rising of the solidus and liquidus temperatures.
(c) No change of the solidus and liquidus temperature.
(d) None of these.
Answer. (a)
Q.20: Mark the correct statement regarding Electrum:
a) lt is a eletrical process
b) lt is a process of electrons seperation
c) lt is a mineral containing copper and silver
d) It is gold contining more than 20% silver
Answer. (d)
Q.21: When the active solutions are directly of magmatic origin, all changes in mineral
composition or in texture produced by them are termed:
(a) Eutectic.
(b) Deuteric.
(c) Metasomatic.
(d) Hydatogenetic.
Answer. (b)
Q.22: Alexandrite is a greenish variety of:
a) Smithsonite
b) Zincite
c) Chrysoberye
d) Corundum
Answer. (c)
Q.23: Grphite crystallises in:
a) Tetragonal system
b) Hexagonal system
c) Cubic system
d) Orthorhombic system
Answer. (b)
Q.24: The colour of Galena is lead - grey and its strike is:
a) Black.
b) Greyish black
c) Greenish black
d) Bluish black
Answer. (b)
Q.25: Chalcoclte is a/an.... of copper:
a) Oxide
b) Sulphide
c) Carbonate
d) Hydroxide
Answer. (b)
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