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Tuesday, December 20, 2011

Geology Model Test Paper

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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