Geology and Geophysics
GATE GG-1 purpose:exam-prep PYQs
Build your understanding with focused practice from past exam papers.
Questions 21–30 of 650. Imported answers require independent review unless marked reviewed.
Question 21
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Which of the following statements is/are CORRECT according to the laws of electromagnetic induction in the Earth?
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Which of the following is/are REE-bearing mineral(s)?
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Which of the following pair(s) of well logs does/do NOT exhibit crossover for gas-bearing zones in hydrocarbon reservoirs?
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If the diameter of a scaled-down model of the Earth is 45 cm, then the equivalent length on the surface of the Earth for 1 cm on the model is __________ km (rounded off to two decimal places).
[Use: Radius of the Earth = 6371 km]
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The wavelength of a certain portion of the electromagnetic spectrum ranges from 2000 nm to 3000 nm. The highest frequency associated with the above portion of the spectrum is__________×10⁸ MHz (rounded off to one decimal place).
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Consider that the upper continental crust is 10 km thick and made up of granitic rock having density of 2800 kg/m³. The surface heat flow due to radiogenic heat from the granitic rock having heat production value of 10⁻⁹ W/kg is____________ mW/m² (answer in integer).
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Which one of the following stereographic projections represents a reclined fold?
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A mineral has X = c, Y = b, Z = a, where X, Y, Z denote optical directions and a, b, c denote crystallographic axes. If X is the fast vibration direction and the mineral is optically positive, a {001} section will show which one of the following interference figures?
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Which one of the following minerals is NOT formed by chemical weathering?
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Which one of the following is NOT a diagnostic parameter in identifying a crystalline phase using powder X-ray diffraction data?
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