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GATE - ALL Fold Related Questions

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2019 Q.7 The plunge of the normal to the axial planes of vertical and upright folds is_______.  (A) 0 o (B) 45 o  (C) 60 o  (D) 90 o 2018 Q.17 A ‘gentle’ fold with an interlimb angle equal to 160 o appears tight (apparent interlimb angle equal to 20 o ) in horizontal section. According to the plunge of the fold axis, it can also be classified as (A) horizontal fold. (C) steeply plunging fold. (B) gently plunging fold. (D) vertical fold. Q.46 The stretching lineation on the axial plane (S2) of a reclined fold on the S1 foliation makes an angle of 30 o with the S1/S2 intersection lineation. The rake of the stretching lineation on the axial plane in degrees is ______________. 2017 Q.31 A limb of a non-plunging fold With an attitude 070 o 40°S is rotated about its fold. axis 30 o clockwise (looking towards ENE). The plunge ammount of the pole to the fold limb after rottation is: ________degres. 2016 Q.22 Two vertically dipping limbs of a fold
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GATE DAM RELATED QUESTIONS

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GATE 2014 Q.42 The best match of terms in Group I with those in Group II is Group I (P) Alkali reaction (Q) Arching (R) Rip rap (S) Clay core Group II (1) Tunnelling in hard rocks (2) Earth dam (3) Concrete aggregate (4) Surface slope protection (5) Concrete gravity dam (A) P-4; Q-5; R-1; S-3 (C) P-3; Q-1; R-4; S-2 (B) P-5; Q-4; R-2; S-3 (D) P-1; Q-3; R-4; S-2 GATE 2013 Q.36 Which of the following is a type of dam? (A) Anchor (B) Shotcrete (C) Geogrid (D) Buttress GATE 2012 Q.44 Match the items in Group I with those in Group II.  Group I P. Churching Q. Curtain grouting R. Piping S. Pozzolan Group II 1. Concrete gravity dam 2. Tunnelling 3. Cement 4. Earth dam (A) P-2, Q-1, R-4, S-3 (C) P-2, Q-3, R-1, S-4 (B) P-4, Q-1, R-2, S-3 (D) P-1, Q-2, R-3, S-4 A
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GATE- ALL GRAVITY RELATED QUESTIONS

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GATE 2019 Q.5 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 GATE 2019 Q.15 Which one of the following is only a correction and not a reduction in the computation of gravity anomalies with respect to a datum? (A) Free air (B) Bouguer (C) Terrain (D) Isostatic GATE 2019 Q.71 In gravity anomalies, the ‘Indirect effect’ mainly arises from ________. (A) the sources outside the area of investigation (B) improper instrument drift C) effect of mass lying between the geoid and ellipsoid (D) short-wavelength uncompensated masses in the subsurface GATE 2019 Q.74 If ΔJ and Δσ are the uniform magnetization and density contrasts respectively, of a point source, the relation between the vertical components of the gravity (gz) and magnetic (Tz) anomalies can be expressed (neglecting long-wavelength component) as _________. (G is Gravitational constant)
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GATE - ALL WAVE VELOCITY RELATED QUESTIONS

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GATE 2019 Q.17 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 GATE 2019 Q.25 The shear wave velocity in an igneous rock with a density of 2.7 gm/cc and rigidity modulus of 24.3 GPa is ______ km/s. (round off to 1 decimal place). GATE 2019 Q.62 A 3-D seismic tomography experiment was carried out with an inter-station spacing of ‘X’ km. The subsurface velocity perturbations in three dimensional blocks were estimated with block size of ‘2X’km and ‘0.5X’km in case 1 and case 2, respectively. Which one of the following statements is CORRECT? (A) The spatial resolution is poor and variance is small for case 1. (B) The spatial resolution is good and variance is small for case 2. (C) The spatial resolution is good and variance is large for case 1. (D) The spatial resolution is poor and variance is large for case 2. GATE 2019 Q.78 A split-spread refle
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GATE RQD

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GATE 2019 Q.23 For a dam site investigation, drilling was carried out up to a depth of 20 m. The total length of recovered core pieces, each over 100 mm, add up to 16 m. The Rock Quality Designation (RQD) of the foundation rock mass is __________%. GATE 2015 Q.38 From the figure given below depicting a recovered core of a total length of 200 cm, the RQD (Rock Quality Designation) is_________%.
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GATE Half-Life PROBLRMS

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GATE 2013 Q.16 If a radioactive isotope has a decay constant of 1.55 × 10-10 year-1, its half-life (in years) would be (A) 4.57 × 109 (B) 4.47 × 109 (C) 4.57 × 1010 (D) 4.47 × 1010 GATE 2015 Q.20 The pair of curves that depicts the radioactive decay and growth of a parent-daughter pair in the following figure is (N – Number of nuclides, Time in multiples of half-life). (A) P, Q (C) P, S (B) P, R (D) S, Q GATE 2016 Q.10 Which one of the following parent-daughter systems has the longest half life? (A) 147Sm → 143Nd (B) 40K → 40Ar (C) 87Rb → 87Sr (D) 187Os → 187Re GATE 2016 Q.52 The fraction of a radioactive nuclide remaining after 10 half-lives is closest to (A) 0.1 (B) 0.01 (C) 0.001 (D) 0.0001 GATE 2013 Q.16 If a radioactive isotope has a decay constant of 1.55 × 10-10 year-1, its half-life (in years) would be (A) 4.57 × 109 (B) 4.47 × 109 (C) 4.57 × 1010 (D) 4.47 × 1010 GATE 2018 Q.80 The ratio of the number of daughter nuclides to the number of
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GATE Resistivity sounding curve

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GATE 2011 Q.42 The apparent resistivity sounding curve representing the resistivity structure  ρ 1 >  ρ 2 <  ρ 3 <  ρ 4 is (A) HK type (C) KH type (B) HA type (D) KQ type GATE 2013 Q.33 In a 4-layer subsurface model, which combination of A-, H-, K- and Q- type electrical resistivity sounding curves is NOT possible? (A) HA (B) AK (C) KQ (D) HQ GATE 2016 Q.44 The five-layer Schlumberger resistivity sounding curve given below represents ________. (A) HAQ-type (B) HKQ-type (C) HKH-type (D) HAK-type 2009 Q.11 Over a three layered earth. comprising of top dry soil followed by saturated weathered layer and hard rock basement, a resistivity sounding experiment is performed. The obtained VES curve is_________ (A) K-typc (C) H-type (B) A-type (D) Q-type 2007 Q.13 The apparent resistivity type curve recorded over the following three layer section (top - dry soil; middle - saturated aquifer; bottom - bed rock) is Q.14 (A) A-Type (B) Em» (C) K-Type (D) Q-T
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