List of practice Questions

Match the geomorphic features in Group I with corresponding environments in Group II. 

Group IGroup II
P. Eskers1. Beach
Q. Natural levee2. Volcanic
R. Chenier ridge3. Glacial
S. Plug dome4. Fluvial
A tabular ore body of 9 km\(^2\) area and an average thickness of 9 m has a density of 3000 kg/m\(^3\). The tonnage (in million tonnes) of the ore body is _________.
Assume that the orbit of the earth is a circle of radius 150 \(\times\) 10\(^6\) km. The gravitational constant and the earth’s orbital velocity are given as 6.7 \(\times\) 10\(^{-11}\) N·m\(^2\)/kg\(^2\) and 30 \(\times\) 10\(^3\) m/s, respectively. The calculated mass of the sun is _________ \(\times\) 10\(^30\) kg (rounded off to two decimal places).
Two vertical wells penetrating a confined aquifer are 200 m apart. The water surface elevations in these wells are 35 m and 40 m above a common reference datum. The discharge per unit area through the aquifer is 0.05 m/day. Using Darcy’s law, the coefficient of permeability is _________ m/day.
A 50 kg granite boulder gets dislodged from a cliff of height 20 m and undergoes an absolute vertical free fall. If the acceleration due to gravity is 10 m/s\(^2\), the boulder will hit the ground with a velocity of _________ m/s.
Mass and volume of a fully dried soil sample are 500 g and 250 cm\(^3\), respectively. The average density of the particles in the soil sample is 2.5 g/cm\(^3\). The void ratio of the soil sample is _________ %.
The difference between Si/O ratios of K-feldspar and olivine is _________ (answer in two decimal places).
If a crystal contains 5 faces and 8 edges, the number of vertices in the crystal is _________.
At a temperature of 298.15 Kelvin, the free energy change of a reaction (\(\Delta G^{\circ}\)) is 19.737 kcal/mole. If the universal gas constant (R) = 1.98717 Calorie/degree/mole, the \(\log_{10}\) of the equilibrium constant \(K\) is _________ (rounded off to two decimal places).
A normal fault displaces a sandstone bed such that the dip-slip and the strike-slip components are 3 m and 4 m, respectively. The net-slip of the displacement is _________ m.
In a sedimentary rock, the diameters of two grains A and B are 1ϕ and 3ϕ, respectively. The difference in diameters between A and B is_________mm (rounded off to two decimal places).
A light ray passes from mineral A to mineral B having refractive indices of 1.750 and 1.430, respectively. The limiting value of angle of incidence above which the light ray undergoes total internal reflection is ______________ degree (rounded off to one decimal place).
Throw and heave of a bed offset by a normal fault are 100 m and 200 m, respectively. The dip of the fault plane is __________degree (rounded off to one decimal place).
Assume: (i) geothermal gradient = 25°C/km in the crust, (ii) density of the crustal rocks = 3000 kg/m\(^3\), and (iii) acceleration due to gravity = 10 m/s\(^2\). Based on these values, the lithostatic pressure at a point where temperature is 400°C will be ___________MPa.
The intensity of an earthquake of magnitude 8 on the Richter scale is greater than the intensity of an earthquake of magnitude 5 on the same scale by ________ times.
Select the correct statement(s).
Select the correct statement(s).
Which of the following gastropods has/have siphonal canal?
Which of the following is/are mode(s) of preservation of fossils?
Select the pair(s) that is/are correctly matched.
Choose the reaction(s) indicating metamorphism of pelites at T>600°C and P<8 kbar.
Which of the following statement(s) is/are correct for a plot of (\(^{87}Sr/^{86}Sr\)) versus (\(^{87}Rb/^{86}Sr\)) of a rock which has evolved in a closed system?
Which of the following statements is/are correct with reference to subsurface water?
Which of the following geomorphic features indicate(s) the presence of a fault?
An ore mineral has the following physical properties: (1) metallic lustre, (2) steel-grey color, (3) two sets of octahedral cleavage, (4) high specific gravity, and (5) makes mark on paper. Identify the ore mineral.