List of practice Questions

Match the rock types in Group I with their characteristic mineral assemblages in Group II.

Group I		Group II
P	Diorite	1	plagioclase-orthopyroxene clinopyroxene
Q	Tole	2	olivine-orthopyroxene-clinopyroxene
R	Norite	3	plagioclase-homblonde + quartz
S	Lherzolite	4	quarte-plagioclase K-feldspar

Match the mineral deposit types in Group I with the water types in Group II considered dominantly responsible for their origin.

Group I		Group II
P	Porphyry copper deposits	1	Meteoric water
Q	Mississippi Valley Type deposits	2	Groundwater
R	Roll-front uranium deposits	3	Magmatic water
S	Epithermal gold deposits	4	Connate water

Match the minerals in Group I with their optical properties in Group II

Group I		Group II
P	Sodalite	1	Mottled extinction
Q	Tourmaline	2	Isotropic
R	Calcite	3	Pleochroic from blue to brown
S	Muscovite	4	Twinkling effect

The contact between the Talchir Formation and the underlying Precambrian basement is

Increased diversity of siphonate bivalves occurred in response to

An index fossil should have

Match the formations in Group I with corresponding stratigraphic periods in Group II.

Group I		Group II
P	Syringothyris Limestone	1	Permian
Q	Karai Shale	2	Jurassic
R	Chari	3	Carboniferous
S	Barren Measures	4	Cretaceous

Which one of the given statements is correct?

Which of the following structures form in marine environment?

Identify the correct stratigraphic successions ordered from oldest to youngest.

Which of the following stratigraphic units contain coal seams?

Which of the following statements are CORRECT?

Which of the following genera are stem fossils?

Which of the following statements are correct?

The acceleration due to gravity on the Earth's surface depends on

A metamorphosed basaltic assemblage can include the minerals

Which of the following pairs represent correct plutonic - volcanic equivalents?

Based on the given stereographic projection, the fold can be classified as

The Ripple Symmetry Index (RSI) for the given hypothetical asymmetric ripple is_____. (Round off to one decimal place)

Within a fourth order drainage basin, the total lengths of the 1st, 2nd, 3rd and 4th order streams are 10.5 km, 7.5 km, 5.5 km and 1.5 km, respectively. If the drainage density of the basin is 0.5 km^-1, the basin area is km². (In integer)

The radius of the Earth's circular orbit round the Sun is 149×10⁶ km. The Earth takes 365 days to orbit the Sun. The tangential velocity of the Earth is_____ km/hour. (π = 3.14) (Round off to one decimal place)

A borehole inclined at 60° to the horizontal pierces a vertical basaltic dyke of uniform thickness. If the length of the basaltic drill core along the core axis is 12 m, the thickness of the dyke is____ m. (In integer)

A P-ray arrives at the mantle-core boundary at an angle 25º with respect to the normal. At what angle to the normal does it enter the core? (P-wave velocity in the lower mantle is 13.7 km/s and outer core is 8.1 km/s)(Round off to two decimal places)

The mass of the Earth is 80 times that of the Moon while the radius of the Earth is four times that of the Moon. The surface gravity of the Earth is______times that of the Moon? (In integer)

A hypothetical rock contains the assemblage kyanite, sillimanite and quartz. The variance (degree of freedom) of the assemblage is_____. (In integer)