Welcome to the OSSSC PEO Exam Mock Test 2026. This online mock test contains 20 important GK and GS MCQs designed for candidates preparing for the OSSSC PEO examination.
The questions cover important areas such as Geography, Environment, Odisha GK, Indian Geography, Current Affairs, Rivers, Dams, Wildlife and Climate Change.
OSSSC PEO Exam Mock Test – Topics Covered
This OSSSC PEO Mock Test 2026 includes questions from:
- Geography
- Environment
- Odisha Geography
- Odisha GK
- Indian Geography
- Environmental Schemes
- Rivers and Dams
- Wildlife Conservation
- Climate Change
- Important International Environmental Agreements
- Current Affairs
Important GK GS Questions for OSSSC PEO
The mock test covers important questions related to Earth’s atmosphere, ozone layer, Mount Lewotobi Laki-laki, international borders of India, Challenger Deep, Congo River, Atal Bhujal Yojana, Savanna grasslands, Western Ghats and Anamudi Peak.
It also includes Odisha-focused questions on Odisha’s major rivers, Hirakud Dam, Bhubaneswar’s Net Zero vision, Olive Ridley turtles and mineral resources.
Other questions cover Beti Bachao, Beti Padhao, Kyoto Protocol and India State of Forest Report, making this a useful revision set for OSSSC PEO GK GS preparation.
Why Attempt This OSSSC PEO Exam Mock Test?
Regularly attempting an OSSSC PEO Exam Mock Test can help you:
- Practice important GK and GS questions
- Revise Odisha GK and Geography
- Improve speed and accuracy
- Identify weak areas
- Prepare for the OSSSC PEO examination
- Strengthen your Current Affairs and Environment preparation
Attempt all 20 OSSSC PEO GK GS MCQs and check your performance after completing the mock test.
1. What is the approximate percentage of nitrogen in the Earth’s atmosphere?
Nitrogen constitutes approximately 78% of the Earth’s atmosphere.
2. Which layer of the atmosphere contains the ozone layer?
Troposphere
Mesosphere
Stratosphere
Thermosphere
The ozone layer is mainly concentrated in the stratosphere.
3. In which country is the active volcano Mount Lewotobi Laki-laki located?
Japan
Indonesia
Philippines
Malaysia
Mount Lewotobi Laki-laki is an active volcano located on Flores Island in Indonesia.
4. Which Indian state shares land borders with Bhutan, Bangladesh, and Nepal?
Assam
Sikkim
West Bengal
Bihar
West Bengal shares international land borders with Bhutan, Bangladesh, and Nepal.
5. What is the deepest part of the world’s oceans?
Java Trench
Tonga Trench
Challenger Deep
Puerto Rico Trench
Challenger Deep, located in the Mariana Trench, is the deepest known point in the world’s oceans.
6. Which major river is known for crossing the Equator twice?
Nile River
Congo River
Amazon River
Niger River
The Congo River crosses the Equator twice during its course.
7. What is the primary function of the Atal Bhujal Yojana?
River linking
Sustainable groundwater management
Flood control
Irrigation dam construction
Atal Bhujal Yojana focuses on sustainable groundwater management through community participation.
8. What type of grasslands are Savannas?
Temperate grasslands
Tropical grasslands
Polar grasslands
Alpine grasslands
Savannas are tropical grasslands characterized by grasses with scattered trees and seasonal rainfall.
9. Which hill range is situated closest to Kanyakumari?
Eastern Ghats
Aravalli Range
Cardamom Hill
Vindhya Range
The Cardamom Hills form a major part of the southern Western Ghats. Their southernmost sub-sections—often referred to locally as the Agasthyamalai Hills or Kanyakumari Hills—extend directly into the Kanyakumari district
10. What is the highest peak in Peninsular India located in the Annamalai Range?
Doddabetta
Anamudi
Mahendragiri
Agasthyamalai
Anamudi, at about 2,695 metres, is the highest peak in Peninsular India.
11. Which phenomenon involves the irregular oscillation of sea surface temperatures in the Indian Ocean?
El Niño
La Niña
Indian Ocean Dipole
Madden-Julian Oscillation
The Indian Ocean Dipole (IOD) refers to an irregular oscillation of sea-surface temperature gradients across the Indian Ocean.
12. Which rivers are traditionally associated with Odisha being known as the ‘Gift of Six Rivers’?
Mahanadi, Brahmani, Baitarani, Subarnarekha, Budhabalanga and Rushikulya
Vamsadhara, Nagavali, Indravati, Tel, Ong and Kolab
Mahanadi, Tel, Ib, Ong, Brahmani and Baitarani
Rushikulya, Vamsadhara, Nagavali, Kolab, Indravati and Tel
The six rivers traditionally associated with this description are Mahanadi, Brahmani, Baitarani, Subarnarekha, Budhabalanga and Rushikulya.
13. Which major dam project in Odisha is known for having one of the world’s longest earthen dams?
Hirakud Dam
Rengali Dam
Balimela Dam
Indravati Dam
The Hirakud Dam Project on the Mahanadi River is famous for its very long earthen dam and dykes.
14. Which country partnered with the Odisha government to launch the ‘Net Zero’ vision for Bhubaneswar?
Germany
United Kingdom
Japan
France
The United Kingdom partnered with Odisha on initiatives related to Bhubaneswar’s net-zero vision.
15. Which river in Odisha is famous for the mass nesting of Olive Ridley turtles?
Mahanadi
Rushikulya
Brahmani
Baitarani
The Rushikulya River mouth in Odisha is famous for mass nesting, or arribada, of Olive Ridley turtles.
16. Under which Schedule of the Wildlife Protection Act are Olive Ridley turtles protected?
Schedule I
Schedule II
Schedule III
Schedule IV
Olive Ridley turtles receive the highest level of protection under Schedule I of India’s Wildlife Protection Act.
17. Which district of Odisha is known for significant copper deposits?
Mayurbhanj
Ganjam
Puri
Kalahandi
Mayurbhanj district is known for mineral resources, including copper deposits.
18. In which state was the ‘Beti Bachao, Beti Padhao’ campaign originally launched?
Rajasthan
Haryana
Punjab
Uttar Pradesh
Beti Bachao, Beti Padhao was launched in January 2015 in Panipat, Haryana.
19. What is the primary objective of the Kyoto Protocol?
To protect biodiversity
To reduce greenhouse gas emissions
To control ocean pollution
To increase forest cover
The Kyoto Protocol established legally binding emission reduction targets for developed countries to address climate change.
20. Which organization releases the ‘India State of Forest Report’ biennially?
Forest Survey of India
NITI Aayog
Ministry of Environment, Forest and Climate Change
Indian Council of Forestry Research and Education
The Forest Survey of India (FSI) publishes the India State of Forest Report every two years.
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If you are preparing for the OSSSC PEO Exam, practice GK, GS, Odisha Current Affairs, Geography, Environment and other important subjects regularly.
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