Geology CSS Paper II 2008

FEDERAL PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2008.

GEOLOGY, PAPER – II
TIME ALLOWED: PART I 30 MINUTES MAXIMUM MARKS 20
PART II 2 Hours & 30 Minutes MAXIMUM MARKS 80
NOTE: (i) First attempt PART I (MCQ) on separate Answer Sheet which shall be taken back after 30 minutes.
(ii) Overwriting / cutting of the options / answers will not be given credit.

PART – I (MCQ) (COMPULSORY)
Q.1 Select the best option /answer and fill in the appropriate box on the Answer Sheet. (20)
(i) Evaporites present in a petroleum basin are considered as good:
(a) Source rocks (b) Moderate reservoir rocks (c) Potential seals (d) None of these
(ii) Bauxite is an ore for:
(a) Iron (b) Nickel (c) Uranium (d) Aluminum
(iii) The term Becke Line referes to a:
(a) Straight line on aerial photograph (b) Line where sea and land meet
(c) Bright line visible under microscope that separates grains of different Refrative Indeels (d) Line formed by joininh points of same elevation
(iv) Hornfel is a typical rock of:
(a) Cataclastic metamorphism (b) Metasomatism (c) Dynamothermal metamorphism (d) Volcanic activity
(v) Movement of ground water is controlled by:
(a) Physical properties of rocks (b) Composition of rocks (c) Rainfall in the area (d) Alluvial Soil
(vi) Standard Penetration Test of soils provides information about:
(a) Compaction of soils (b) Porosity of soils (c) Grain size of soils (d) All of these
(vii) Difference between Plastic Limit and Liquid Limit of a soil is called as:
(a) Elasticity (b) Plastic limit (c) Plasticity index (d) Both (a) and (b)
(viii) Quality of a reservoir rocks is mainly dependant on its:
(a) Permeability (b) Trap rock (c) Porosity (d) None of these (ix) Coal-fired power plants are major causes of:
(a) Acid rain (b) Carbon dioxide emission (c) Depletion of ozone (d) Both (a) and (b)
(x) Major coal producing country in the world is:
(a) Poland (b) Canada (c) Australia (d) India
(xi) Banded iron formation comprises of:
(a) Shale, carbonate and hematite (b) Hematite and chert (c) Magnetite and oil shale (d) None of these
(xii) Kerogen is insoluble in normal:
(a) Sulphuric acid (b) Organic solvent (c) Carbonic acid (d) Both (a) and (c)
(xiii) Type I Kerogen mostly produces:
(a) Liquid hydrocarbon (b) Coal (c) Gas (d) Both (a) and (c)
(xiv) Large deposits of natural gas are developed from:
(a) Large algal deposits (b) Large deposits of plant remains (c) Thermal cracking of large deposits of oil (d) All of these
(xv) P-type seismic waves are:
(a) Compressional waves (b) Shear waves (C) Both (a) and (h) (d) None of these
(xvi) Surface waves travel — – – than the body waves:
(a) Faster (b) Slower (c) Same speed (d) Could be either (a) or (b) under different conditions
(xvii) Minerals which occur along with an ore mineral but have no value are called as:
(a) Raw minerals (b) Waste minerals (c) Gangue minerals (d) None of these
(xviii) Addition of Si in limestones through silicate intrusions results in the formation of:
(a) Siliceous marble (b) Quartz.ose marble (c) Skam (d) All of these
(xix) Gossan is formed by surticial weathering of:
(a) fleamatite (h) Bauxite (c) Pyrite (d) Both (a) and (b)
(xx) Most of the diamonds are used as:
(a) Gems (b) Glass cutters (c) Drilling tools (d) In Lasers

PART II
Note:
(i) PART II is to be attempted on the separate Answer Book.
(ii) Attempt ONLY FOUR questions from PART II. All questions carry EQUAL marks. Illustrate your answer wherever necessary.
(iii) Extra attempt of any question or any part of the attempted question will not be considered.

Q.2. Describe the variety of metallic minerals available in Pakistan. Also point out the types of industries which can be set up based on these metallic minerals. (20)
Q.3. What is Kerogen? Describe the processes involve in the evolution of Kerogen to Petroleum? (20)
Q.4. a. Describe the Geology (formation, lithology, age) of the Source Rocks of Petroleum in the Indus Basin of Pakistan. (20)
Q.5. Describe the geological factors required for selection of a dam site. (20)
Q.6. What is an Aquifer? Describe various types of Aquifers? How can we solve the problem of pollution of underground water? (20)
Q.7. What are various Geophysical techniques used for exploration of mineral deposits? (20)
Q.8. What are various steps involved in the process of preparation of geologic map of an area? What is the use of aerial photographs in this process? (20)

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