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IIT JAM Geology Mock Test - 5 Free Online Test 2026


Full Mock Test & Solutions: IIT JAM Geology Mock Test - 5 (60 Questions)

You can boost your Geology 2026 exam preparation with this IIT JAM Geology Mock Test - 5 (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 - 5 - Question 1
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Choose the Correct statement
I. Magnetic chrons Gilbert and matuyama are normal where as gauss and brunhes are reverse
II. The correct order of Magnetic chrons from the youngest to the oldest is Gilbert-Gauss-Matuyama-Brunhes

Detailed Solution: Question 1

Magnetic chrons Gilbert and matuyama are reverse where as gauss and brunhes are normal The correct order of Magnetic chrons from the oldest to the youngest is Gilbert-Gauss-Matuyama-Brunhes

IIT JAM Geology Mock Test - 5 - Question 2
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The pole of the plane AB represented on the stereonet is __________

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IIT JAM Geology Mock Test - 5 - Question 3
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The broadest Geochronostratigraphic unit is:

Detailed Solution: Question 3

IIT JAM Geology Mock Test - 5 - Question 4
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Select the correct order in which flow velocity increases:-

Detailed Solution: Question 4

A schematic of bedform transitions and surface water configurations for Lower and Upper Flow Regime sedimentation- significantly modified from Harms and Fahnestock, 1965, Plate 1 (see references below).
Note the antidune foresets dip upstream.

IIT JAM Geology Mock Test - 5 - Question 5
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Lead zinc ores occur at several places in India, the main producer of the ore is _ .

Detailed Solution: Question 5

Lead zinc ores occur at several places in India, the main producer of the ore is zawar belt situated in udaipur district of Rajasthan.

IIT JAM Geology Mock Test - 5 - Question 6
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Match the bivalves in Group I with their modes of life in Group II:

Detailed Solution: Question 6

Habits of Bivalves
Burrowing: Mya, Venus.
Swimming: Pecten, Lima.
Attached: Mytilus, Modiolus.
Cemented: Ostrea, Hippurites, Chama.
Free lying: Gryphaea, Lithophaga.
Boring and cavity dwelling: Lithophaga, Pholas, Teredo.

IIT JAM Geology Mock Test - 5 - Question 7
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Match Group I with Group II:

Detailed Solution: Question 7

IIT JAM Geology Mock Test - 5 - Question 8
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Find the odd man out from the following

IIT JAM Geology Mock Test - 5 - Question 9
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If the Reynolds number is > 2000, the flow regime is

Detailed Solution: Question 9

The flow is treated as a laminar flow if the Reynolds number is less than 2000. And the flow is treated as turbulent if the Reynolds number is greater than 2000.

IIT JAM Geology Mock Test - 5 - Question 10
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A rock that is porous but not permeable.

Detailed Solution: Question 10

Clay is the most porous sediment but is the least permeable. Clay usually acts as an aquitard, impeding the flow of water. Gravel and sand are both porous and permeable, making them good aquifer materials. Gravel has the highest permeability.

IIT JAM Geology Mock Test - 5 - Question 11
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Rock A and Rock B have Rb concentration of 60ppm and 90ppm respectively are mixed in the 1:5 proportions. The Sr concentrations of the mixture will be:

Detailed Solution: Question 11

∴ Rb concentration in the mixture = 1/6 × 60 + 5/6 × 90
= 10 + 449 = 24.99
25 ppm

IIT JAM Geology Mock Test - 5 - Question 12
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An aquifer has a cross-sectional area of 400m2 and a hydraulic gradient of 0.02. If water is flowing from the aquifer at a rate of 15 m3/sec, the hydraulic conductivity in (m/sec) of the aquifer is ______

Detailed Solution: Question 12

Given,
q = 15 m3/sec  i = 0.02
A = 400 m2
we know,
Q = K A i  
⇒  K = Q/A i  = 20/400 × 0.02
= 15/400 × 0.02
= 1.87 m/sec

IIT JAM Geology Mock Test - 5 - Question 13
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An igneous rock having an Alkaline lime index between 56-61. The rock falls under which category:

IIT JAM Geology Mock Test - 5 - Question 14
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Consider the following figure:


Specific gravity of fresh water and salt water is 1 and 1.068 respectively. If the value of 'h' is 8 m, value of 'z' will be ______ m.

Detailed Solution: Question 14

From Ghyben-Herzberg relationship
z = ρfresh/ (ρsalt - ρfresh) × h
z = 1 /1.068 - 1 × 8
= 1/0.068 × 8
= 117.64 

IIT JAM Geology Mock Test - 5 - Question 15
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A vertical or inclined opening in a mine driven upward from a level to connect with the level above is known as

Detailed Solution: Question 15

IIT JAM Geology Mock Test - 5 - Question 16
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Two planets A and B are moving around the sun in the elliptical orbit. If the ratio of the length of the semimajor axis of planet A to planet B is 4 : 1, then find the ratio of the time-period of planet A to time-period of planet B.

Detailed Solution: Question 16

Given
rA/rB = 41
By the law of periods, it is clear that
⇒ T2∝r3 ..................(1)
By equation 1, for planet A and planet B

⇒ TA/TB = 8/1

IIT JAM Geology Mock Test - 5 - Question 17
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Match the following Group I with Group II:

Detailed Solution: Question 17

 

IIT JAM Geology Mock Test - 5 - Question 18
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Which of the following is a Geochronologic unit?

Detailed Solution: Question 18

Phase: Geochronologic unit.
Sub-stage,
Erathem and Series: Chronostratigraphic unit.

IIT JAM Geology Mock Test - 5 - Question 19
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A basic rock consisting of Albite + Zoisite + Actinolite belongs to which one of the following metamorphic facies?

IIT JAM Geology Mock Test - 5 - Question 20
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Which of the following supercontinents is oldest?

Detailed Solution: Question 20

Kenorland: Neoarchean
Vaalbara: Mesoarchean
Nuna: Paleo-Proterozoic
Pannotia: Late Neo-Proterozoic

IIT JAM Geology Mock Test - 5 - Question 21
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Corundum and Quartz both minerals are hexagonal and may contain inclusions of fine fibrous TiO2 that are aligned parallel to the ______ fold symmetry axes at right angles to C.

IIT JAM Geology Mock Test - 5 - Question 22
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Which of the following mineral assemblages characterizes Granulite facies metamorphism of mafic rock?

Detailed Solution: Question 22

IIT JAM Geology Mock Test - 5 - Question 23
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Match the Foraminifera with their characteristic shell:

Detailed Solution: Question 23

IIT JAM Geology Mock Test - 5 - Question 24
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The age of the Haptaran Group is:

IIT JAM Geology Mock Test - 5 - Question 25
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In sedimentology, what does the Hjulström diagram help to visualise

IIT JAM Geology Mock Test - 5 - Question 26
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The mass of an Earth is 600kg (acceleration due to gravity g=10m/s2). If acceleration due to gravity on the moon is g/6, then mass of the body on the moon is:

Detailed Solution: Question 26

Mass is a universal constant. The mass of the body remains unchanged in any part of universe. Mass of the body does not change with respect to gravity. It is weight that changes with gravity.

IIT JAM Geology Mock Test - 5 - Question 27
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The orientation of P (compression) and T (Tension) is given in the figure. What type of fault is this

IIT JAM Geology Mock Test - 5 - Question 28
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Arrange the following granitoid bodies in order of their decreasing age.
P. Dongargarh Granite
Q. Bundelkhand Gneiss
R. Older Metamorphic group
S. Peninsular Gneiss

Detailed Solution: Question 28

Generalised classification and correlation of Archean and Lower Proterozoic formations of India (Chronometric data in million years, based on Sarkar, 1980; Sarkar et al. 1981; Sarkar and Saha, 1982)

IIT JAM Geology Mock Test - 5 - Question 29
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The diagram below shows the interference figure of a mineral. The mineral is

Detailed Solution: Question 29

In the given diagram quartz retardation plate is used. Retardation is shown to occur opposite to the slow direction of the retardation plate. Hence it is uniaxial negative mineral.

IIT JAM Geology Mock Test - 5 - Question 30
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Which of the following textures is typical of iron meteorites?

Detailed Solution: Question 30

The Widmanstatten texture is typical of iron meteorites.

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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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