OSSC PEO GK Question Mock Test 2026: 20 MCQs with Answers part-1

Are you preparing for the OSSC PEO examination? Practice this OSSC PEO GK Question Mock Test 2026 to improve your General Knowledge preparation. This set contains 20 important GK questions covering Indian Polity, History, Geography, General Science, Environment and important national institutions.

Each question is provided with the correct answer and a short explanation, making this mock test useful for both practice and quick revision.

OSSC PEO GK Question Mock Test with Answers

This OSSC PEO GK Mock Test includes questions on important topics frequently useful for Odisha government competitive examinations. Questions cover areas such as:

Indian Constitution and Polity
Indian History
Indian Geography
General Science
Environment and Ecology
Important Institutions
General Awareness

The questions are designed to help candidates practice important facts and revise their GK syllabus effectively.

OSSC PEO GK Questions for Practice

If you are searching for OSSC PEO GK Questions, this practice set can be useful for daily preparation. Attempt all 20 questions first and then check the answers and explanations.

Regular practice of GK questions can help improve accuracy, speed and confidence for competitive examinations.

OSSC PEO GK Question PDF

Candidates looking for an OSSC PEO GK Question PDF can use this question set for revision and practice. You can also save or print the questions for offline study.

OSSC PEO GK Mock Test Free 2026

This OSSC PEO GK Mock Test Free 2026 is suitable for candidates preparing for OSSC PEO and other Odisha government competitive examinations. Along with PEO preparation, these GK questions can also be useful for OSSSC, OPSC, Odisha Police, RI, AMIN, Junior Assistant and other examinations.

How to Use This Mock Test

Attempt all 20 questions without checking the answers.
Note your score.
Review the explanations for incorrect answers.
Revise the related GK topics.
Practice more mock tests regularly.

1. What is the hardest substance in the human body?

Nail

Bone

Tooth enamel

Dentine

Tooth enamel is the hardest substance in the human body. Odia Explanation: ଦାନ୍ତର ଏନାମେଲ୍ ମାନବ ଶରୀରର ସବୁଠାରୁ କଠିନ ପଦାର୍ଥ ଅଟେ।

2. Panchsheel Agreement (1954) was signed between India and which country?

China

Pakistan

Sri Lanka

Nepal

The Panchsheel Agreement of 1954 was signed between India and China. Odia Explanation: ୧୯୫୪ ମସିହାର ପଞ୍ଚଶୀଳ ଚୁକ୍ତି ଭାରତ ଏବଂ ଚୀନ୍ ମଧ୍ୟରେ ସ୍ୱାକ୍ଷରିତ ହୋଇଥିଲା।

3. Under which Article is a Financial Emergency declared in India?

Article 352

Article 356

Article 360

Article 365

Article 360 of the Indian Constitution deals with Financial Emergency. Odia Explanation: ଭାରତୀୟ ସମ୍ବିଧାନର ଧାରା ୩୬୦ ଆର୍ଥିକ ଜରୁରୀକାଳୀନ ପରିସ୍ଥିତି ସହିତ ସମ୍ପର୍କିତ।

4. Article 14 of the Indian Constitution deals with what?

Right to education

Abolition of untouchability

Freedom of speech

Equality before law

Article 14 guarantees equality before the law and equal protection of the laws. Odia Explanation: ଧାରା ୧୪ ଆଇନ ଆଗରେ ସମାନତା ଏବଂ ଆଇନର ସମାନ ସୁରକ୍ଷା ନିଶ୍ଚିତ କରେ।

5. Where is the headquarters of the National Dairy Research Institute located?

Karnal

Nagpur

Patna

Ahmedabad

The headquarters of the National Dairy Research Institute (NDRI) is located in Karnal, Haryana. Odia Explanation: ଜାତୀୟ ଦୁଗ୍ଧ ଗବେଷଣା ପ୍ରତିଷ୍ଠାନ (NDRI)ର ମୁଖ୍ୟାଳୟ ହରିୟାଣାର କର୍ଣ୍ଣାଲରେ ଅବସ୍ଥିତ।

6. What is the highest peak of the Chota Nagpur Plateau?

Dhupgarh

Parasnath

Anamudi

Guru Shikhar

Parasnath is the highest peak of the Chota Nagpur Plateau. Odia Explanation: ପାରସନାଥ ଛୋଟନାଗପୁର ମାଳଭୂମିର ସର୍ବୋଚ୍ଚ ଶୃଙ୍ଗ ଅଟେ।

7. Jonha Falls is located in which state?

Jharkhand

Kerala

Chhattisgarh

Assam

Jonha Falls is located near Ranchi in Jharkhand. Odia Explanation: ଜୋନ୍ହା ଜଳପ୍ରପାତ ଝାଡ଼ଖଣ୍ଡର ରାଞ୍ଚି ନିକଟରେ ଅବସ୍ଥିତ।

8. Dry ice is the solid form of which substance?

Ammonia

Nitrogen

Water

Carbon dioxide

Dry ice is the solid form of carbon dioxide (CO2). Odia Explanation: ଡ୍ରାଏ ଆଇସ୍ ହେଉଛି କାର୍ବନ ଡାଇଅକ୍ସାଇଡ୍ (CO2)ର କଠିନ ରୂପ।

9. The Cartagena Protocol is related to which subject?

Climate change

Ozone layer

Biosafety

Access and benefit sharing

The Cartagena Protocol deals with biosafety, particularly the safe handling and transfer of living modified organisms. Odia Explanation: କାର୍ଟାଜେନା ପ୍ରୋଟୋକଲ୍ ଜୈବ ସୁରକ୍ଷା, ବିଶେଷକରି ପରିବର୍ତ୍ତିତ ଜୀବମାନଙ୍କର ସୁରକ୍ଷିତ ପରିଚାଳନା ଓ ସ୍ଥାନାନ୍ତରଣ ସହିତ ସମ୍ପର୍କିତ।

10. The Meghalaya Plateau is separated from the Chota Nagpur Plateau by which gap?

Bhor Ghat

Malda Gap (Garo-Rajmahal Gap)

Thal Ghat

Palghat Gap

The Meghalaya Plateau is separated from the Chota Nagpur Plateau by the Malda Gap, also known as the Garo-Rajmahal Gap. Odia Explanation: ମେଘାଳୟ ମାଳଭୂମି ଛୋଟନାଗପୁର ମାଳଭୂମିଠାରୁ ମାଲଦା ଗ୍ୟାପ୍ ବା ଗାରୋ-ରାଜମହଲ ଗ୍ୟାପ୍ ଦ୍ୱାରା ପୃଥକ ହୋଇଛି।

11. What is the chemical name of baking soda?

Sodium carbonate

Sodium chloride

Sodium bicarbonate

Calcium carbonate

The chemical name of baking soda is sodium bicarbonate (NaHCO3). Odia Explanation: ବେକିଂ ସୋଡାର ରାସାୟନିକ ନାମ ସୋଡିୟମ୍ ବାଇକାର୍ବୋନେଟ୍ (NaHCO3)।

12. What colour does phenolphthalein turn in a basic solution?

Yellow

Colourless

Pink

Blue

Phenolphthalein turns pink in a basic or alkaline solution. Odia Explanation: କ୍ଷାରୀୟ ଦ୍ରବଣରେ ଫେନଲଫ୍ଥାଲିନ୍ ଗୋଲାପୀ ରଙ୍ଗରେ ପରିଣତ ହୁଏ।

13. Who founded the Brahmo Samaj?

Keshab Chandra Sen

Ishwar Chandra Vidyasagar

Dayanand Saraswati

Raja Ram Mohan Roy

Raja Ram Mohan Roy founded the Brahmo Samaj in 1828. Odia Explanation: ରାଜା ରାମମୋହନ ରାୟ ୧୮୨୮ ମସିହାରେ ବ୍ରାହ୍ମ ସମାଜ ପ୍ରତିଷ୍ଠା କରିଥିଲେ।

14. What is the largest gland in the human body?

Liver

Pancreas

Pituitary

Thyroid

The liver is the largest gland in the human body. Odia Explanation: ଯକୃତ ମାନବ ଶରୀରର ସବୁଠାରୁ ବଡ଼ ଗ୍ରନ୍ଥି ଅଟେ।

15. Where is the headquarters of ISRO located?

Bhopal

Mumbai

Bengaluru

New Delhi

The headquarters of ISRO is located in Bengaluru, Karnataka. Odia Explanation: ISROର ମୁଖ୍ୟାଳୟ କର୍ଣ୍ଣାଟକର ବେଙ୍ଗାଲୁରୁରେ ଅବସ୍ଥିତ।

16. Article 21 of the Indian Constitution deals with what?

Freedom of religion

Right to education

Protection of life and personal liberty

Right to property

Article 21 provides protection of life and personal liberty. Odia Explanation: ଧାରା ୨୧ ଜୀବନ ଏବଂ ବ୍ୟକ୍ତିଗତ ସ୍ୱାଧୀନତାର ସୁରକ୍ଷା ପ୍ରଦାନ କରେ।

17. Where is the headquarters of the Botanical Survey of India located?

Chennai

Kolkata

Hyderabad

Mumbai

The headquarters of the Botanical Survey of India is located in Kolkata. Odia Explanation: ଭାରତୀୟ ଉଦ୍ଭିଦ ସର୍ବେକ୍ଷଣର ମୁଖ୍ୟାଳୟ କୋଲକାତାରେ ଅବସ୍ଥିତ।

18. Where is the headquarters of the Geological Survey of India located?

Pune

Kolkata

Bengaluru

Ahmedabad

The headquarters of the Geological Survey of India is located in Kolkata. Odia Explanation: ଭାରତୀୟ ଭୂତତ୍ତ୍ୱ ସର୍ବେକ୍ଷଣର ମୁଖ୍ୟାଳୟ କୋଲକାତାରେ ଅବସ୍ଥିତ।

19. The Rotterdam Convention is related to what?

Ozone layer

Prior informed consent for hazardous chemicals and pesticides

Migratory species

Wetlands

The Rotterdam Convention promotes the prior informed consent procedure for certain hazardous chemicals and pesticides in international trade. Odia Explanation: ରୋଟରଡାମ୍ କନଭେନସନ୍ ଆନ୍ତର୍ଜାତୀୟ ବାଣିଜ୍ୟରେ କେତେକ ବିପଜ୍ଜନକ ରାସାୟନିକ ପଦାର୍ଥ ଓ କୀଟନାଶକ ପାଇଁ ପୂର୍ବ ସୂଚିତ ସମ୍ମତି ପ୍ରକ୍ରିୟା ସହିତ ସମ୍ପର୍କିତ।

20. Kunchikal Falls is located in which state?

Karnataka

Kerala

Maharashtra

Goa

Kunchikal Falls is located in Karnataka. Odia Explanation: କୁଞ୍ଚିକାଲ ଜଳପ୍ରପାତ କର୍ଣ୍ଣାଟକରେ ଅବସ୍ଥିତ।

Score: 0 | Attempted: 0 / 0 | Accuracy: 0%

Conclusion

Practicing an OSSC PEO GK Question Mock Test with Answers is a useful way to revise General Knowledge and identify topics that need more attention. Keep practicing regularly and strengthen your preparation for the OSSC PEO examination.

Continue your OSSC PEO preparation with more GK questions, mock tests and study materials on MockTestOdisha.