Explore topic-wise MCQs in Engineering Geology.

This section includes 25 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Geology knowledge and support exam preparation. Choose a topic below to get started.

1.

Pegmatites are formed due to displacement reactions.

A. True
B. False
Answer» B. False
Discussion
2.

The igneous rock with flow texture is ____________

A. Gabbro
B. Pumice
C. Rhyolite
D. Basalt
Answer» D. Basalt
Discussion
3.

The igneous rock with very low specific gravity is ___________

A. Granite
B. Pumice
C. Gabbro
D. Basalt
Answer» C. Gabbro
Discussion
4.

The igneous rock with glassy texture is ___________

A. Gabbro
B. Pumice
C. Obsidian
D. Pegmatite
Answer» D. Pegmatite
Discussion
5.

Pick the rock which is not volcanic in terms of mode of occurrence.

A. Granite
B. Basalt
C. Obsidian
D. Pumice
Answer» B. Basalt
Discussion
6.

What can be said about the grain size of pegmatite?

A. Fine grained
B. Medium grained
C. Fine to medium grained
D. Coarse grained
Answer» E.
Discussion
7.

Pick the igneous rock whose mode of occurrence is volcanic.

A. Basalt
B. Granite
C. Gabbro
D. Syenite
Answer» B. Granite
Discussion
8.

Syenites show similar textures of granites.

A. True
B. False
Answer» B. False
Discussion
9.

The texture of granite is ___________

A. Equigranular
B. Directive
C. Inequigranular
D. Intergrowth
Answer» B. Directive
Discussion
10.

The two most common mineral found in granites are ___________

A. Diamond and mica
B. Mica and orthoclase
C. Quartz and felspar
D. Felspar and corundum
Answer» D. Felspar and corundum
Discussion
11.

PICK_THE_IGNEOUS_ROCK_WHOSE_MODE_OF_OCCURRENCE_IS_VOLCANIC.?$

A. Basalt
B. Granite
C. Gabbro
D. Syenite
Answer» B. Granite
Discussion
12.

Pick the rock which is not volcanic in terms of mode of occurrence.$

A. Granite
B. Basalt
C. Obsidian
D. Pumice
Answer» B. Basalt
Discussion
13.

What_can_be_said_about_the_grain_size_of_pegmatite?$

A. Fine grained
B. Medium grained
C. Fine to medium grained
D. Coarse grained
Answer» E.
Discussion
14.

Pegmatites are formed due to displacement reactions. State true or false.

A. True
B. False
Answer» B. False
Discussion
15.

The igneous rock with flow texture is

A. Gabbro
B. Pumice
C. Rhyolite
D. Basalt
Answer» D. Basalt
Discussion
16.

The igneous rock with very low specific gravity is

A. Granite
B. Pumice
C. Gabbro
D. Basalt
Answer» C. Gabbro
Discussion
17.

The igneous rock with glassy texture is

A. Gabbro
B. Pumice
C. Obsidian
D. Pegmatite
Answer» D. Pegmatite
Discussion
18.

What is the mode of formation of gabbro?

A. Volcanic
B. Plutonic
C. Hypabyssal
D. Dykes
Answer» C. Hypabyssal
Discussion
19.

What is the usual colour of gabbro?

A. White
B. Yellow
C. Black
D. Blue
Answer» D. Blue
Discussion
20.

State true or false. Syenites show similar textures of granites.

A. True
B. False
Answer» B. False
Discussion
21.

Syenites belong to which mode of occurrence?

A. Volcanic rocks
B. Plutonic
C. Hypabyssal
D. Concordant
Answer» C. Hypabyssal
Discussion
22.

The texture of granite is

A. Equigranular
B. Directive
C. Inequigranular
D. Intergrowth
Answer» B. Directive
Discussion
23.

Which is the most important accessory mineral in granite?

A. Felspar
B. Quartz
C. Topaz
D. Mica
Answer» E.
Discussion
24.

The two most common mineral found in granites are

A. Diamond and mica
B. Mica and orthoclase
C. Quartz and felspar
D. Felspar and corundum
Answer» D. Felspar and corundum
Discussion
25.

Granite belongs to which mode of occurrence of igneous rock?

A. Volcanic rocks
B. Plutonic
C. Hypabyssal
D. Volcanic and hypabyssal
Answer» C. Hypabyssal
Discussion