Friend FOR YOUR Better Exam Preparation Here I m Giving RPSC Previous year Question Paper for Junior Chemist (GWD) Screening Test 2014 :


What is difference between the gravity value (in mGals ) at equator and pole of the Earth ?
1) 5200
2) 6200
3) 7200
4) 8200

What would be the free air correction for the gravity measured at an elevation of 152.7 meters? (Assume sea level as datum).
1) 27.12 mGals
2) 47.12 mGals
3) 67.12 mGals
4) 77.12 mGals

Name the gravity correction that is always positive ?
1) Bouguer correction
2) Free Air Correction
3) T errain Correction
4) Latitude correction

Bode's law expresses the approximate distance between :
1) Earth and other planets
2) Sun and other planets
3) Moon and the Earth
4) Moon and the Sun

The maximum gravity value due to a sphere reduces to half at a horizontal distance of 380 meters from the centre of sphere at x = 0. What is the
approximate depth to the centre of sphere?
1) 496 meters
2) 596 meters
3) 696 meters
4) 796 meters

Ground resolution of a satellite is a function of :
1) V elocity of Satellite
2) Mass of Satellite
3) Orbit of Satellite
4) Height of Satellite

Within peneplained gneissic area, the graphite mica schist is host for sphalerite mineralization that is associated with pyrite 5% and pyrrhotite
15%. The diagnostic geophysical method will be :*
1) Self potential method
2) Induced Polarization method
3) Magnetic method
4) Gravity method

Which of the following is true about the Airy's model of Isostasy? (i) The base of the Earth's crust is not the mirror image of the topography . (ii)
Areas of high elevation have high density 'crustal root'. (iii) Crustal blocks of the Earth have equal density and they float on high density material
(iv) Crustal blocks of the Earht have different density.
1) (i) Only
2) (i) and (ii)
3) (iii) only
4) (iv) only

How many earthquakes of magnitude 6 are required approximately to produce the same amount of energy (in Joules) as produced by an
earthquake of magnitude 8 ?
1) 150
2) 350
3) 450
4) 750

What is the name of the empirical formula that gives the frequency of the aftershocks at time 't' after the main shock?
1) Omori' s Law
2) Richter' s Law
3) Gutenberg' s Law

What is the ratio of P* wave velocity to the S* wave velocity for a rock with Poisson's ratio of 0.25 ?
1) 1.93
2) 1.83
3) 1.73
4) 1.63

Which of the following remains constant for a ray travelling downward through a series of layers with increasing velocity ?
1) Amplitude
2) Ray Parameter
3) Energy
4) Frequency

Which of the following is false for the propagation of P* waves and S*waves in a medium ? (i) S*waves travel faster than the P*waves (ii) S*waves
travel slower than the P*waves (iii) S*waves cannot travel through the fluid medium. (iv) P*waves can travel through the fluid medium.
1) (i) only
2) (i) and (ii)
3) (iii) only
4) (iv) only

According to frequency* magnitude relation, how many earthquakes of magnitude 4 per year are expected in a region that has experienced one
earthquake of magnitude 6 per year ? (T ake b* value =1) .
1) 10
2) 100
3) 200
4) 300

How many seismic zones have been presented in the seismic zoning map of India?
1) One
2) T wo
3) Three
4) Four

One MPa of stress drop is equal to :*
1) 1 bar
2) 5 bars
3) 10 bars
4) 100 bars

The velocities of direct wave and crirically refracted wave have been estimated as 415 meters/sec and 2055 meters per sec respectively. What is the
critical distance if the cross over distance is 12.8 meters ?
1) 4.15 meters
2) 3.15 meters
3) 2.15 meters
4) 1.15 meters

What is the shape of time *distance curve in case of seismic reflection?
1) Straight line
2) Parabola
3) Elliptical
4) Hyperbola

A layer with a velocity 1500 meter/sec and a thickness of 100 meters lies above another layer with a velocity 3000 meter/ sec. What is expected
cross over distance?
1) 100√3
2) 200√3
3) 300√3
4) 50√3

The emissivity spectral signature is generally useful for identifying :*
1) Ores and rock types
2) Oil structure
3) W ater bearing formations
4) Cloud Pattern

T wo layers with velocities 1500 meters/sec (top layer) and 2500 meters/sec (bottom layer) are separated by a horizontal reflector . The depth of the
reflector is 750 meters. What would be the two way reflection time at zero offset?
1) 2 sec
2) 3 sec
3) 1 sec
4) 4 sec

The normal move*out time of seismic reflection is directly proportional to which of the following ?
1) Offset distance
2) Square of the offset distance
3) V elocity
4) Square of the velocity

The IP effect is observed over multi*metal sulphide body because :*
1) The body is partly above and partly below the water table
2) The resistivity of the body is very low
3) Due to presence of more than one metallic mineral
4) The path of inducing current changes from ionic to electronic and electronic to ionic

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