Data Interpretation - General Aptitude - General Aptitude (GA) Previous Year Questions

1

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

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).

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2

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

Which one of the following sedimentary structures CANNOT be identified in vertical sections?

A

Convolute lamination

B

Gutter cast

C

Dish structures

D

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3

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

The reflectance spectrum of solar energy by the hydrous molecules in plant leaves is best represented in an optical spectrometer in the wavelength range of

A

Near Infrared (0.7 - 1.3 μm)

B

Short Infrared (1.3 - 3.0 μm)

C

Mid Infrared (3 - 8 μm)

D

Long Infrared (8 - 15 μm)

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4

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

In the estimation of magnetotelluric transfer function, the time-independent conservation of current at conductivity discontinuities will result in

A

phase rotation

B

static-shift

C

null tipper

D

equal bi-modal apparent resistivity values

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5

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

In any given signal, removal of all periods shorter than Nyquist period is achieved by

A

high-pass filtering

B

band-pass filtering

C

low-pass filtering

D

band-reject filtering

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6

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

Which ONE of the following statements is CORRECT with regard to the application of reduction-to-pole (RTP) technique on the total field magnetic anomaly map of any region?

A

RTP is an efficient tool in the areas close to the equator (below ± 20° Lat.)

B

RTP assumes mainly induced magnetization for the source bodies

C

RTP cannot be applied at higher latitudes (above ± 60° Lat.)

D

RTP completely eliminates the sources of remnant magnetization.

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7

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

A clean, thick and hydrocarbon bearing sandstone bed can be identified through a combination of

A

low SP and high resistivity

B

large SP and high resistivity

C

low transit time and high resistivity

D

large SP and low resistivity

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8

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

In frequency domain IP, which one of the following frequency ranges (in Hz) is used to measure apparent resistivity at DC and AC limits?

A

0.01 – 0.1

B

0.1 – 1

C

0.1 – 10

D

10 – 100

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9

2015 · General Aptitude (GA) · General Aptitude · Data Interpretation

Geology & Geophysics (GG) 2015

The Bouguer anomaly obtained after applying all necessary corrections is due to

A

topographic undulations above the datum

B

increase in densities of crustal rocks with depth

C

lateral density variations

D

vertical density contrast across Moho

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