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The Study of Rocks Online Exam Quiz

Important questions about The Study of Rocks. The Study of Rocks MCQ questions with answers. The Study of Rocks exam questions and answers for students and interviews.

Which of the following is not a factor explaining texture?

Options

A : a. Wind conditions

B : b. Degree of crystallization

C : c. Granularity

D : d. Fabric

The degree of crystallization where the constituents are very fine or glassy are ______________

Options

A : a. Holocrystalline

B : b. Holohyalline

C : c. Homohyalline

D : d. Homocrystalline

What is the term used when constituents are crystallized completely?

Options

A : a. Holocrystalline

B : b. Holohyalline

C : c. Homohyalline

D : d. Homocrystalline

What is the range of grain size for coarse grained igneous rock?

Options

A : a. Above 2 mm

B : b. Below 2 mm

C : c. Above 5 mm

D : d. Below 5 mm

Grain size 5mm to 1mm is termed as ______________

Options

A : a. Coarse grained

B : b. Intermediate grained

C : c. Fine grained

D : d. Medium grained

The grain size involving use of microscope is ______________

Options

A : a. Coarse grain

B : b. Medium grain

C : c. Fine grain

D : d. Very coarse grain

What is the term given when some granules are exceptionally large and few are small?

Options

A : a. Mixed granular

B : b. Equigranular

C : c. Inequigranular

D : d. Unequigranular

Pick the wrong statement about granitic texture.

Options

A : a. The constituents are coarse grained

B : b. The constituents are medium grained

C : c. The crystals show euhedral to subhedral outlines

D : d. The rock is microgranular

The number of equigranular textures are ________________

Options

A : a. 1

B : b. 3

C : c. 2

D : d. 4

The branch of geology which deals with the morphology, classification, mechanism and causes of development of these rock structures is called as ___________

Options

A : a. Rock geology

B : b. Structural geology

C : c. Basic geology

D : d. Lithology

Stratification can be seen widely in which of the following rocks?

Options

A : a. Igneous rocks

B : b. Metamorphic rocks

C : c. Sedimentary rocks

D : d. Fossil rocks

Outcrop is seen on land everywhere on earth.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Most widespread rock on earth is _____________

Options

A : a. Igneous rock

B : b. Sedimentary rock

C : c. Metamorphic rock

D : d. All are in equal quantities

Which of the following about lamination is not true?

Options

A : a. It is closely related to stratification

B : b. It is literally paper thin

C : c. It is a layered structure developed in extremely fine grained igneous rocks

D : d. It is a layered structure developed in extremely fine grained sedimentary rocks

The maximum angle of inclination of a layer of a rock with the horizontal is _____________

Options

A : a. Dip

B : b. Heave angle

C : c. Strike

D : d. Depth

Angle of dip is measured using which instrument?

Options

A : a. Compass

B : b. Theodolite

C : c. Tacheometer

D : d. Clinometer

Which among the following is not a type of dip?

Options

A : a. Widespread dip

B : b. Primary dip

C : c. Secondary dip

D : d. Local and regional dip

The term “intrusion” is basically associated with which type of rock?

Options

A : a. Igneous rock

B : b. Sedimentary rock

C : c. Metamorphic rock

D : d. Not associated with any type of rock

The dip which involves tectonic forces is _____________

Options

A : a. Primary dip

B : b. Secondary dip

C : c. Local and Regional dip

D : d. No dip involves tectonic forces

A coal seam is exposed on a horizontal ground. If it is 30° towards West. Its width of outcrop on a level ground is 360 m. What is its true thickness?

Options

A : a. 120 m

B : b. 150 m

C : c. 160 m

D : d. 180 m

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