PUNJAB PUBLIC SERVICE COMMISSION Combined Competitive Examination (CCE) 2025 For Recruitment to the Posts of Provincial Management Service (PMS)
SUBJECT: Geology (Paper-I) Time Allowed: 3 Hours Maximum Marks: 100
Note: Attempt any five questions in all. Attempt in Urdu or English.
Q No. 1: Briefly discuss the internal structure of the earth and its composition. How the thickness of the different internal layers of the earth was estimated? (20 Marks)
Q No. 2: How does the theory of Plate Tectonics explain the formation and deformation of the Earth’s crust? Discuss with examples where crust is being created, destroyed, or remains unchanged. (20 Marks)
Q No. 3: Discuss the ecological structure of ancient biological communities and the theories of community structures. (20 Marks)
Q No. 4: Discuss the Precambrian and Cambrian rocks of Salt Range, Pakistan. (20 Marks)
Q No. 5: How does an igneous rock get a porphyritic texture? What characteristic of the silicate minerals in a gabbro make it so much darker in colour than a granite? (20 Marks)
Q No. 6: Differentiate between rare earth and trace elements. Discuss about the significance of rare earth elements in understanding geochemical evolution of mantle and crust. (20 Marks)
Q No. 7: What is Bowen’s Reaction Series (BRS)? How does BRS help predict the order of mineral crystallization and melting, formation of silicate structures (polymerization), evolution of plagioclase composition, and mineral stability at surficial temperatures and pressures? (20 Marks)
Q No. 8: Describe the following: (20 Marks)
Magmatic ore deposits
Polymorphism and crystal habit
SUBJECT: Geology (Paper-II) Time Allowed: 3 Hours Maximum Marks: 100
Note: Attempt any five questions in all. Attempt in Urdu or English.
Q No. 1: Describe different geological materials used in construction? Discuss characteristic features of coarse aggregate used with concrete? (20 Marks)
Q No. 2: Write down in detail the physical properties of water? The hydrologic cycle is a descriptive term applied to the general circulation of water. Write down in detail with diagram about the hydrologic cycle? (20 Marks)
Q No. 3: What is compression, extension and shearing? Briefly explain them and the structural changes occurred in rocks? (20 Marks)
Q No. 4: Explain causes, process and types of wind? What are the main soil horizons? (20 Marks)
Q No. 5: Briefly discuss the electromagnetic spectrum? (20 Marks)
Q No. 6: Define vector data model and its representation of spatial features? Discuss its advantages in mapping. (20 Marks)
Q No. 7: What are igneous rocks? Give in short, the mineralogical and textural classification of igneous rocks? (20 Marks)
