GATE-2006 (84)
GATE-2006 Q. The Young's modulus (E), density of rock(ρ) and Poisson's ratio (σ) are used to determine Shear wave velocity(β) in a rock. 84. Which one of the following expression is…
Introduction to gpsurya blog
$Dear$ $Friends,$
In this blog you will find around 320 solved Geophysics GATE and CSIR-NET and other competitive exams solutions with a better explanation. Please follow and share if you like it.
$Thanks,$
$gpsurya$ and $group$
Showing posts with the label Gate
GATE-2012 -(30)
GATE-2012 30. Based on acoustic log of a well, the transmit time in a water-bearing sandstone zone is found to be 75μs/ft. The transit time of acoustic wave through the sandstone matrix and…
GATE-2012
GATE-2012 29. Given the frequency of an electromagnetic wave to be 1KHz and ground conductivity to be 10 S/m, calculate the Skin depth.( Give answer in nearest integer , in meters). A) 2 …
GATE-2015 (11)
GATE-2015 11. Considering the Airy isostatic compensation for a mountain having elevation of 2.0km above the mean sea level at a point P, the thickness of its root below P would be ...km. ( con…
GATE-2011 (31)
GATE-2011 Q.31 The frequency of a signal sampled at 200 samples per second appears as 75 Hz. If the signal was under-sampled, the frequency (in Hz) of the original signal would be A) 100 …
GATE-2012 (27)
GATE-2012 27. A small scale seismic reflection survey was conducted with a shot point located at the middle of a 500m long geophone spread. The NMO correction travel times at the end of the spr…
GATE-2008 (55)
GATE-2008 55. A radioactive substance decays to one third of its original value in 6 hours time. What is the half-life (in hours) of the substance? A) 3.58 B) 3.…
GATE-2007 (84 & 85)
GATE-2007 A dipping limestone bed with a true width of 5meters shows an apparent width of 10meters on a horizontal surface. Q.84: Calculate the true dip of the limestone bed A) 70 ° …
GATE-2016 (41)
GATE-2016 Q.41: A Cylindrical sandstone core sample of diameter 0.02m and length 0.04m is fully saturated with brine solution of resistivity 0.5 ohm m. The resistance of the satur…
GATE-2010 (47)
GATE-2010 47. In magnetic materials, the relation between magnetic permeability (μ) and susceptibility (k) (in SI units) is A) μ= 1/k B) μ=1-k C) μ=1+k …
GATE-2010 (36)
GATE-2010 36. The seismic energy released in an earthquake of magnitude Ms=7.0 is about .........times released in an earthquake of Ms=6.0 A) 10 B) 32 …
GATE-2012 (48 & 49)
GATE-2012 A signal having duration of 10 seconds is sampled at a rate of 1000samples per second. The maximum frequency of the sampled signal is 475 Hz . 48. If the signal has been under-sam…
GATE-2008 (69)
GATE-2008 69. In electrical logging, the measured resistivity of flushed zone is 19.2 Ωm, the resistivity of mud filtrate is 1.33 Ωm and the computed value of residual oil saturation in flushed…
Popular
Total Pageviews
Followers
$Labels:$
- free air correction 3
- skin depth problem 3
- acceleration due to gravity as on earth 2
- aliasing 2
- signal processing 2
- undersampling 2
- A gravity survey is conducted over a highly compact ore deposit (spherical shape). Bouguer anomaly values reduced along a profile are given below 1
- A tsunami occurs 1000km away form the shore in an ocean water depth of 6.25km. The tsunami reaches the shore in about 1
- A zero-offset reflection event at 1.00 s has a normal move out (NMO) of 0.005 s at 200 m offset. What is the stacking velocity? 1
- Age of the Carbon-14 1
- Airy 1
- Earth's normal gravity field at Colombo is 1
- Electromagnetic methods 1
- Fresnel zone thickness calculation 1
- Isostasy problem 1
- The Young's modulus (E) 1
- The time period of the signal s(t)= sin(π/3)t + cos(π/2)t is__________seconds. 1
- The units of Dynamic viscosity 1
- The value of free-air correction( assuming sea level as datum plane) at an elevation of 150m is......mGal 1
- What is the lithostatic pressure at the base of a 35 km column of granitic crust with an average density of 2.75 gm/cc ? 1
- Wyllie – Time average equation 1
- Youngs modulus of a rock specimen of density 2.7 gm/cc is 9.72 megabar. The longitudinal wave velocity (in km/s) in the rock is 1
- a thrust dipping 30 degrees caused a vertical uplift of a rock surface by 100m in 20 1
- buoyancy force 1
- calculate maximum usable frequency if critical frequency and angle of incidence is known 1
- dip slip fault is 200m and the dip amount is 30 degrees the throw of the fault is 1
- displacement meter 1
- dix formula interval velocity 1
- drift correction problem 1
- earth and mars density ratios are given 1
- eotvos correction solution 1
- focal length and camera height and flying height given then what is the scale 1
- focal length and scale and flying height given then what is the camera height 1
- foldage formula in seismic 1
- the depth to the reflector in seismic 1
- the quantity (h1/ρ1)+(h2/ρ2)+(h3+ρ3) stands 1
- units of hydraulic conductivity 1