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 quadrants. (D) […]
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 the lineation but parallel to the foliation Ans: perpendicular
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 basin, III-thrust, IV-horst (D) I- pull-apart basin, II- pressure ridge, III-horst, IV-thrust Ans: 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
Isodynamic contours of the geomagnetic field represent lines of equal Read More »
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
Which one of the following logging methods uses a radioactive source in the sonde? Read More »
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 Ans: electrode polarization
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. 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
Q. A single-phase fully-controlled thyristor converter is used to obtain an average voltage of 180 V with 10 A constant current to feed a DC load. It is fed from single-phase AC supply of 230 V, 50 Hz. Neglect the source impedance. The power factor (round off to two decimal places) of AC mains is
