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questions
List of practice Questions
If the intercepts of crystallographic axes are 0.5a : 1b : 0.75c on a crystallographic plane {h k l}, the value of ‘l’ is _________. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Mineralogy
An ocean wave with a wavelength of 200 m approaches the coast. If water depth at the observation point is 75 m, the wave velocity is ______m/s. (Round off to two decimal places) (Use g = 10 m/s
2
)
IIT JAM GG - 2023
IIT JAM GG
Geology
Geomorphology
A bed with an attitude 045°, 20°SE is rotated 60° clockwise (looking down) about a vertical axis. The strike value (in the azimuthal convention following right hand rule) of the rotated bed is ______ degrees. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Structural Geology
A one-meter deep and sheet-like waterflow on a sandy beach developed antidunes. The minimum velocity of the waterflow was _______m/s. (Round off to two decimal places) (Use g = 10 m/s²)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
If the angular aperture of a 20X objective is 46°, the numerical aperture of the water immersion objective is_____. (Round off to two decimal places) (Use RI of water = 1.33)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
A metamorphic rock is composed of grossular garnet (Ca
3
Al
2
Si
3
O
12
), kyanite (Al
2
SiO
5
), anorthite (CaAl
2
Si
2
O
8
) and quartz (SiO
2
). If these minerals show an univariant reaction relationship, the number of components in this assemblage is ________. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Petrology
If the dip separation vector on a normal fault plane has an attitude 60° → 040° and a magnitude of 6 m, the heave on the fault is ______m. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Structural Geology
A hillslope with an angle of 40° consists of soil having an internal friction angle of 30°. The factor of safety of the hillslope is __________. (Round off to two decimal places)
IIT JAM GG - 2023
IIT JAM GG
Geology
Geomorphology
The water table over an area of 1 km
2
was lowered by 4 m. If the porosity of rock is 30% and the specific retention is 10%, the change in the groundwater storage is ______ × 10
3
m
3
. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
The
\(\frac{^{143}Nd}{^{144}Nd}\ \text{and}\ \frac{^{147}Sm}{^{144}Nd}\)
ratios of a rock are 0.516 and 0.389, respectively. The rock evolved as a closed system. As per the exact parent-daughter relationship
\(\frac{^{143}Nd}{^{144}Nd}\)
equation, the ratio of the rock 4.6 × 10
9
years ago was ______. (Round off to three decimal places)
(Use decay constant for
147
Sm = 6.54 × 10
-12
y
-1
)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
A cylindrical copper ore body has a vertical thickness of 45 m and a diameter of 14 m with a density of 2.9 g/cm
3
. The reserve of the copper ore body is _________ tons. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Economic Geology
The following figure shows an isobaric temperature-composition (T-X) phase diagram for the binary system A-B. If 'P' is the initial composition of liquid, the amount of liquid that remains in the system when the liquid cools from 1800 °C (point L
1
) to 1500 °C (point L
2
) is _____%. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Mineralogy
A water flow transports spherical particles (diameter = 2mm; density = 3g/cm
3
) in suspension mode. If additional particles of density 2g/cm
3
are added into the flow, then the diameter of the particles that can be transported without a change in terminal fall velocity, using Stokes law, is _____mm. (Round off to two decimal places) (Use density of water = 1g/cm
3
)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
If an iron ore body contains 50% hematite (Fe
2
O
3
) and 50% magnetite (Fe
3
O
4
), then the grade of the iron ore body is _____%. (Round off to two decimal places) (Use atomic weight of Fe = 55.85 amu and O = 16 amu).
IIT JAM GG - 2023
IIT JAM GG
Geology
Mineralogy
The schematic stereographic projection below shows dip amount and dip direction of three sets of joints (J1, J2 and J3) on a hillslope. If the internal friction angle of the hillslope material is 30°, the strike of the potential failure joint plane (in azimuthal convention following right hand rule) is _____degrees. (In integer)
IIT JAM GG - 2023
IIT JAM GG
Geology
Structural Geology
The hydraulic conductivity of a 100cm long cylindrical core is estimated as 1.2cm/min when hydraulic head difference is 20cm in an experimental setup. If the effective porosity of the core is 20%, then, assuming steady state Darcy flow, the average interstitial velocity of groundwater through the core is _____m/day. (Round off to two decimal places)
IIT JAM GG - 2023
IIT JAM GG
Geology
Applied Geology
Which one of the following compounds inhibits the polymerization of tubulin to microtubules in animal cells?
IIT JAM BT - 2023
IIT JAM BT
Biology
Animal Physiology
Which one of the following is NOT a plant vascular tissue?
IIT JAM BT - 2023
IIT JAM BT
Biology
Plant Tissues
A growing shoot of a germinating seedling encounters an underground obstacle. Which one of the following hormones elicits ‘triple response’ to the underground obstacle?
IIT JAM BT - 2023
IIT JAM BT
Biology
Hormones
Which one of the following pairs of antibodies contains ‘J-chain’ in their multimeric form?
IIT JAM BT - 2023
IIT JAM BT
Biology
Antigens and antibodies
Restriction enzymes that recognize the same nucleotide sequence but cleave at different positions are called
IIT JAM BT - 2023
IIT JAM BT
Biology
Enzymes
Which one of the following does NOT belong to the freshwater ecosystem?
IIT JAM BT - 2023
IIT JAM BT
Biology
Ecosystem
Which one of the following is transcribed by RNA polymerase III in eukaryotes?
IIT JAM BT - 2023
IIT JAM BT
Biology
Rna World
Given the following sets:
𝐴 = {2, 4, 6, 8, 10, 12}
𝐵 = {8, 10, 12, 14, 16, 18}
𝐶 = {7, 8, 9, 10 11, 12, 13}
(𝐴 ∩ 𝐵) ∪ (𝐵 ∩ 𝐶) is
IIT JAM BT - 2023
IIT JAM BT
Mathematics
Sets
Rain is falling vertically with a speed of 40 $m s^{-1}$. Wind starts blowing with a speed of 16 $m s^{-1}$ in the west to east direction. How should a person, who is standing, hold his umbrella to avoid getting wet?
IIT JAM BT - 2023
IIT JAM BT
Physics
Speed and velocity
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