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Geology Exam  >  Geology Test  >  IIT JAM Mock Test Series  >  IIT JAM Geology Mock Test - 1 - Geology MCQ

IIT JAM Geology Mock Test - 1 Free Online Test 2026


Full Mock Test & Solutions: IIT JAM Geology Mock Test - 1 (60 Questions)

You can boost your Geology 2026 exam preparation with this IIT JAM Geology Mock Test - 1 (available with detailed solutions).. This mock test has been designed with the analysis of important topics, recent trends of the exam, and previous year questions of the last 3-years. All the questions have been designed to mirror the official pattern of Geology 2026 exam, helping you build speed, accuracy as per the actual exam.

Mock Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 180 minutes
  • - Total Questions: 60
  • - Analysis: Detailed Solutions & Performance Insights
  • - Sections covered: Section A

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IIT JAM Geology Mock Test - 1 - Question 1
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What is the folding angle (α) of isoclinal fold?

IIT JAM Geology Mock Test - 1 - Question 2
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The shear stress on the principle plane is ____

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IIT JAM Geology Mock Test - 1 - Question 3
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The source rock of Mumbai offshore basin is:

Detailed Solution: Question 3

Answer: C - Panna Formation.

A source rock is an organic-rich sedimentary rock that generates hydrocarbons when its organic matter (kerogen) is buried and subjected to thermal maturation.

The Panna Formation in the Mumbai offshore contains organic-rich shales that are recognised as the principal source of hydrocarbons for the basin; these generated hydrocarbons have migrated into nearby porous and permeable reservoir rocks (for example, the reservoirs feeding Bombay High and other accumulations).

By contrast, limestone commonly serves as a reservoir rather than the main source rock, and the listed sandstone option and Baishakhi shales are not considered the primary source rocks for the Mumbai offshore basin.

IIT JAM Geology Mock Test - 1 - Question 4
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In below Figure Eclogite Facies represent which temperature pressure regime-

IIT JAM Geology Mock Test - 1 - Question 5
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The path finder elements in vein gold ore are:-

Detailed Solution: Question 5

Pathfinder Elements

  • If the valuable component of an ore is immobile, difficult to analyse or yields data which are difficult to interpret, then another element associated with the ore is to detect it.

Pathfinder Elements and the Ores which are Generally Associated with them.

IIT JAM Geology Mock Test - 1 - Question 6
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Which of the following is an ore mineral of Lithium?

Detailed Solution: Question 6

Tetrahedrite – Antimony
Kieserite – Magnesium
Bismite – Bismuth
Petalite – Lithium

IIT JAM Geology Mock Test - 1 - Question 7
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The process of picking up and removal of loose rock fragments, sand & dust by wind is termed as:

IIT JAM Geology Mock Test - 1 - Question 8
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A rock containing equal proportions of plagioclase, Cpx and olivine is:

IIT JAM Geology Mock Test - 1 - Question 9
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The orientation of the fold axis and axial plane in the given stereographic projection indicates-

Detailed Solution: Question 9

IIT JAM Geology Mock Test - 1 - Question 10
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Which class has the highest no of symmetry elements.

Detailed Solution: Question 10

Normal class: 4/m 3 2/m 
→ 3 axis of 4-fold
→ 4 axis of 3-fold
→ 6 axis of 2-fold
→ 13 axis of symmetry
3 mirror plane 
6 mirror plane 
9 mirror plane 
→ 13 axis of symmetry
→ 9 Plane of symm

IIT JAM Geology Mock Test - 1 - Question 11
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Which coastal landform is formed when a spit connects an island to the mainland?

Detailed Solution: Question 11

IIT JAM Geology Mock Test - 1 - Question 12
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Fe-Mg exchange between garnet-biotite and garnet-amphibole acts as a good:-

IIT JAM Geology Mock Test - 1 - Question 13
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Match the following metamorphic facies with their characteristic mineral assemblage:

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IIT JAM Geology Mock Test - 1 - Question 14
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Which of the following animal fossil is present in Lower Gondwana?

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IIT JAM Geology Mock Test - 1 - Question 15
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Select the correct order of appearance:

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IIT JAM Geology Mock Test - 1 - Question 16
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Match the items in ‘A’ with items in ‘B’

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IIT JAM Geology Mock Test - 1 - Question 17
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A bivalve has small simple teeth near the edge of the valve or on the hinge line.This kind of dentition is known as

Detailed Solution: Question 17

Dysodont: Type of dentition has been derived from the taxodont dentition. Numerous, small and homodont teeth are placed on the hinge line and they seem to radiate from the umbo.

IIT JAM Geology Mock Test - 1 - Question 18
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In the HM symbol of notations , if we add mirror planes perpendicular to each of the rotation axes of 422, the resulting crystal class is:

IIT JAM Geology Mock Test - 1 - Question 19
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Arrange the following types of suture patterns in decreasing order of their age:-

Detailed Solution: Question 19


IIT JAM Geology Mock Test - 1 - Question 20
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Contact between Bengal group and underlying Sukma group is:

Detailed Solution: Question 20

 Contact between Bengal group and underlying Sukma group shows characters of Angular unconformity.

IIT JAM Geology Mock Test - 1 - Question 21
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Di-An-Fo (Diopside–Anorthite–Forsterite) at 1 atm: Crystallization Sequence

IIT JAM Geology Mock Test - 1 - Question 22
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Match the following beach balls with their appropriate types of faults:

Detailed Solution: Question 22

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IIT JAM Geology Mock Test - 1 - Question 23
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The process of mechanical disintegration and/or chemical decomposition along with transportation by a natural agent at surface condition is known as:

Detailed Solution: Question 23

Denudation = Weathering + Erosion

IIT JAM Geology Mock Test - 1 - Question 24
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Which one of the following marine environment is indicated by the assemblage of benthic foraminifera:
Stilostomella, Eggerella, Pulina, Melonis

Detailed Solution: Question 24

1. Inner Neritic zone (0–30 m): Ammonia, Elphidium, Quinqueloculina, Textularia, Lenticulina
2. Upper and Middle Bathyal Zone (130–1000 m): Bolivina, Uvigerina, Bulimina, Cibicides, Pyrgo, Nodosaria, Cassidulina
3. Lower Bathyal Zone (1000–3000 m): Stilostomella, Eggerella, Pulina, Melonis, Pleurostomella, Gyroidinoides, Oridoralis

IIT JAM Geology Mock Test - 1 - Question 25
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If the rake of striation on a fault plane is zero, the fault is:

IIT JAM Geology Mock Test - 1 - Question 26
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Presence of Molybdenum element, indicates

Detailed Solution: Question 26

Presence of Molybdenum element, indicates porphyry copper deposits

IIT JAM Geology Mock Test - 1 - Question 27
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A-type granitoids are characteristic of

Detailed Solution: Question 27

A-type granites are generally formed under extensional settings in various tectonic backgrounds, such as within-plate, post-collisional, or back-arc settings.

IIT JAM Geology Mock Test - 1 - Question 28
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Which is a parallel fold.

Detailed Solution: Question 28

Class 1B fold is parallel fold and class 2 fold is called similar fold.

IIT JAM Geology Mock Test - 1 - Question 29
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Which discontinuity is found between the Inner core and Outer core of the Earth.

Detailed Solution: Question 29

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IIT JAM Geology Mock Test - 1 - Question 30
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A horizontal or near horizontal entrance to tunnel known as:

Detailed Solution: Question 30

Adit is the horizontal entrance to tunnel.
Duct is a small pipes through which electrical telecommunication utility runs.

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About this Geology Mock Test

This mock test contains 60 questions designed to replicate the pattern, difficulty level and time pressure of the actual Geology exam. It is part of IIT JAM Geology Mock Test Series on EduRev, covering all the topics that are being asked as per the current Geology syllabus. Attempting this test under timed conditions will help you assess your exam readiness, identify subject-wise weak areas, and improve your speed and accuracy before the actual exam.

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If you found this IIT JAM Geology Mock Test - 1 helpful, you can further enhance your Geology preparation with complete mock tests, previous year questions & practice tests available in IIT JAM Geology Mock Test Series course on EduRev. The course offers:
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  • MCQ Test: variety of questions as per the pattern of Geology exam
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