Q. Which of the following case (s) represent (s) textural inversion in sandstone? Case I: Rounded grains in clayey matrix. Case II: Rounded, but poorly sorted grains. (A) Only case I. (B) Only case II. (C) Both cases I and II. (D) Neither case I nor case II. Ans: Both cases I ...

Q. The value of salinity, in terms of wt.% NaCl equivalent, of an aqueous saline bi-phase liquid-vapour fluid inclusions is determined by measurement of____during microthermometry. (A) last ice-melting temperature (B) dissolution temperature of halite (C) eutectic temperature (D) ...

Q. On inserting a first order red interference filter in SE-NW direction, the interference figure of quartz shows (A) blue in NE, SW quadrants and yellow in NW, SE quadrants. (B) yellow in NE, SW quadrants and blue in NW, SE quadrants. (C) blue in NE, NW quadrants and yellow in SW, SE ...

Q. The best developed lineation and foliation traces in a L-S tectonite will be observed on a plane    . (A) parallel to the lineation and foliation (B) perpendicular to the lineation and foliation (C) perpendicular to the foliation but parallel to the lineation (D) perpendicular to ...

Q. In the given diagram, which one of the combinations CORRECTLY lists structures typically developed at I, II, III, IV? (A) I-pressure ridge, II-thrust, III-horst, IV-pull-apart basin (B) I- pull-apart basin, II-thrust, III-horst, IV-pressure ridge (C) I-pressure ridge, II-pull-apart ...

Q. Isodynamic contours of the geomagnetic field represent lines of equal (A) inclination (B) declination (C) total field intensity (D) magnetic potential Ans: total field intensity

Q. Which one of the following logging methods uses a radioactive source in the sonde? (A) Natural Gamma ray (B) Gamma-Gamma (C) Natural Gamma ray spectroscopy (D) Nuclear Magnetic Resonance (NMR) Ans: Gamma-Gamma

Q. A high frequency acoustic wave propagating in a gas saturated sandstone formation exhibits an increase in (A) frequency (B) velocity (C) wavelength (D) wave number Ans: wavelength

Q. The difference in the mobility of ions in the electrolyte and electrons in metallic conductors in the sub-surface due to applied external electric field gives rise to  (A) electrode polarization (B) membrane polarization (C) electro-kinetic potential (D) electro-chemical potential ...

Q. Which one of the following combination of reservoir and cap rock respectively, is suitable for oil accumulation? (A) Limestone-Sandstone (B) Dolomite-Evaporite (C) Sandstone-Conglomerate (D) Shale-Limestone Ans: Dolomite-Evaporite

Q. Which one of the following lists ONLY kinematic parameters? (A) Force, translation, rotation. (B) Translation, rotation, distortion. (C) Stress, distortion, translation. (D) Force, stress, strain. Ans: Translation, rotation, distortion.

Q. The acceleration due to gravity (g) begins to fall sharply towards the centre of the Earth from the _____________discontinuity. (A) Conrad (B) Mohorovicic (C) Gutenberg (D) Lehmann Ans: Gutenberg