Odisha LTR Teacher Recruitment — Mock Test 03
50 Standard MCQs: Odisha History, Geography, Polity, Arithmetic, Reasoning, Computer & General Science.
OSSC LTR Examination — Mock Test 03 (Questions & Explanations)
50 Curated Multiple Choice Questions for Leave Training Reserve (TGT/Hindi/Sanskrit/PET)
1. Which district of Odisha is known as the 'Granary of Odisha' (Rice Bowl) due to its extensive fertile alluvial soil?
- A) Balasore
- B) Bargarh
- C) Ganjam
- D) Cuttack
Correct Answer: B) Bargarh
Explanation: Bargarh is regarded as the Rice Bowl of Odisha due to canal irrigation from the Hirakud Dam project.
2. Under which Article of the Indian Constitution is the Union Public Service Commission (UPSC) established?
- A) Article 280
- B) Article 312
- C) Article 315
- D) Article 324
Correct Answer: C) Article 315
Explanation: Article 315 mandates a Public Service Commission for the Union and for each State.
3. Who established the daily Odia newspaper 'The Prajatantra' from Cuttack?
- A) Gopabandhu Das
- B) Harekrushna Mahatab
- C) Madhusudan Das
- D) Nilakantha Das
Correct Answer: B) Harekrushna Mahatab
Explanation: Dr. Harekrushna Mahatab founded 'The Prajatantra' in 1923.
4. What is the primary function of the 'BIOS' chip in a computer motherboard?
- A) Perform arithmetic operations
- B) Execute power-on self-test (POST) and boot loader
- C) Manage internet bandwidth
- D) Store volatile graphics memory
Correct Answer: B) Execute power-on self-test (POST) and boot loader
Explanation: BIOS checks hardware upon startup and loads the operating system bootstrap into RAM.
5. A sum of money doubles itself at simple interest in 10 years. In how many years will it triple itself at the same rate?
- A) 15 years
- B) 20 years
- C) 25 years
- D) 30 years
Correct Answer: B) 20 years
Explanation: Doubling in 10 years means the interest rate is 10%. To triple (gain 2P as interest), it requires 20 years.
6. Find the missing term in the sequence: 3, 7, 15, 31, 63, ?
- A) 95
- B) 125
- C) 127
- D) 131
Correct Answer: C) 127
Explanation: Pattern: (n × 2) + 1. (63 × 2) + 1 = 127.
7. Which waterfall in Odisha is located inside the Similipal National Park in Mayurbhanj district?
- A) Khandadhar
- B) Barehipani
- C) Badaghagara
- D) Sanaghagara
Correct Answer: B) Barehipani
Explanation: Barehipani is a 399-meter two-tiered waterfall on the Budhabalanga river in Similipal.
8. What is the pH value of pure distilled water at 25°C?
- A) 5.6
- B) 7.0
- C) 8.2
- D) 9.0
Correct Answer: B) 7.0
Explanation: Pure water is neutral at 25°C with equal concentrations of H⁺ and OH⁻ ions.
9. Which shortcut key in Google Chrome opens the browser's Downloads manager tab?
- A) Ctrl + D
- B) Ctrl + J
- C) Ctrl + H
- D) Ctrl + N
Correct Answer: B) Ctrl + J
Explanation: Ctrl + J opens Downloads. Ctrl + H opens the History log.
10. A cyclist covers 150 meters in 25 seconds. What is his speed in km/h?
- A) 18.5 km/h
- B) 21.6 km/h
- C) 24.0 km/h
- D) 20.4 km/h
Correct Answer: B) 21.6 km/h
Explanation: Speed = 150/25 = 6 m/s. Converted: 6 × (18/5) = 21.6 km/h.
11. Who was the chief British commissioner who faced rebel attacks during the Khurda Paika uprising in 1817?
- A) Major Fletcher
- B) Lt. Prideaux
- C) Edward Impey
- D) William Trower
Correct Answer: A) Major Fletcher
Explanation: Major Fletcher commanded British detachments during the Paika resistance in Pipili and Khurda.
12. If South-East becomes North, North-East becomes West, and so on, what will West become?
- A) North-East
- B) South-East
- C) North-West
- D) South-West
Correct Answer: B) South-East
Explanation: Every compass direction shifts 135° clockwise. 135° clockwise from West leads to South-East.
13. Which hormone is commonly called the 'Emergency Hormone' or 'Fight-or-Flight Hormone' in humans?
- A) Thyroxine
- B) Adrenaline (Epinephrine)
- C) Calcitonin
- D) Insulin
Correct Answer: B) Adrenaline (Epinephrine)
Explanation: Secreted by the adrenal medulla during stress to elevate heart rate and blood flow.
14. In which year was the Rengali Dam on the Brahmani River commissioned?
- A) 1975
- B) 1985
- C) 1992
- D) 2001
Correct Answer: B) 1985
Explanation: The Rengali dam in Angul district was commissioned in 1985.
15. The marked price of an article is ₹500. A retailer offers two successive discounts of 20% and 10%. What is the selling price?
- A) ₹340
- B) ₹350
- C) ₹360
- D) ₹380
Correct Answer: C) ₹360
Explanation: 500 × 0.80 = 400. 400 × 0.90 = ₹360.
16. Who among the following wrote 'Chha Mana Atha Guntha', the pioneering realistic Odia novel?
- A) Radhanath Ray
- B) Gopal Chandra Praharaj
- C) Fakir Mohan Senapati
- D) Gopinath Mohanty
Correct Answer: C) Fakir Mohan Senapati
Explanation: Fakir Mohan Senapati authored 'Chha Mana Atha Guntha', published in book format in 1902.
17. Which Article of the Constitution of India deals with the 'Uniform Civil Code' (UCC)?
- A) Article 40
- B) Article 44
- C) Article 48
- D) Article 51
Correct Answer: B) Article 44
Explanation: Article 44 in Part IV (DPSP) directs the State to secure a Uniform Civil Code.
18. Which lake in Odisha is an oxbow freshwater lake situated in Cuttack district near Athagarh?
- A) Chilika
- B) Ansupa
- C) Tampara
- D) Kanjia
Correct Answer: B) Ansupa
Explanation: Ansupa is an oxbow freshwater lake on the left bank of the Mahanadi river.
19. Who was the leader of the Sambalpur revolt during the 1857 Indian War of Independence?
- A) Chakra Bisoi
- B) Veer Surendra Sai
- C) Madho Singh
- D) Baji Rout
Correct Answer: B) Veer Surendra Sai
Explanation: Veer Surendra Sai led the armed uprising against the British doctrine of lapse in Sambalpur.
20. Under which Schedule of the Indian Constitution are the official recognized languages listed?
- A) Seventh Schedule
- B) Eighth Schedule
- C) Ninth Schedule
- D) Eleventh Schedule
Correct Answer: B) Eighth Schedule
Explanation: The Eighth Schedule contains the 22 constitutionally recognized languages of India.
21. What is the primary mineral extracted from the Sukinda Valley in Jajpur district?
- A) Bauxite
- B) Chromite
- C) Iron Ore
- D) Mica
Correct Answer: B) Chromite
Explanation: The Sukinda Valley contains over 90% of India's total proven chromite reserves.
22. Which layer of the TCP/IP protocol stack corresponds to IP addressing and routing?
- A) Network Access Layer
- B) Internet Layer
- C) Transport Layer
- D) Application Layer
Correct Answer: B) Internet Layer
Explanation: The Internet Layer manages IP datagrams, logical addressing, and routing paths across subnets.
23. The average age of 24 students and their class teacher is 16 years. If the teacher's age is excluded, the average decreases by 1 year. The teacher's age is:
- A) 38 years
- B) 40 years
- C) 42 years
- D) 45 years
Correct Answer: B) 40 years
Explanation: (25 × 16) - (24 × 15) = 400 - 360 = 40 years.
24. If 'PENCIL' is coded as 'QGODKP', what is the code for 'ERASER' using the same alphabetical shift?
- A) FSBTER
- B) FSBVHT
- C) FTBUHT
- D) ESBVHU
Correct Answer: B) FSBVHT
Explanation: Alternating shift applied across positions: E(+1)=F, R(+1)=S, A(+1)=B, S(+3)=V, E(+3)=H, R(+2)=T yields FSBVHT.
25. Which district of Odisha has the lowest population density according to the Census?
- A) Malkangiri
- B) Debagarh (Deogarh)
- C) Kandhamal
- D) Rayagada
Correct Answer: C) Kandhamal
Explanation: Kandhamal has a low population density of approximately 91 persons per square kilometer.
26. What is the chemical name of common table salt?
- A) Sodium carbonate
- B) Sodium bicarbonate
- C) Sodium chloride (NaCl)
- D) Potassium chloride
Correct Answer: C) Sodium chloride (NaCl)
Explanation: Table salt is sodium chloride (NaCl).
27. What type of connector is standard on Ethernet patch cables for LAN connections?
- A) RJ-11
- B) RJ-45
- C) USB-A
- D) VGA
Correct Answer: B) RJ-45
Explanation: RJ-45 is the standard 8P8C modular connector for twisted-pair Ethernet cables.
28. A cistern can be filled by two pipes in 20 minutes and 30 minutes respectively. How long will they take working together?
- A) 10 minutes
- B) 12 minutes
- C) 15 minutes
- D) 18 minutes
Correct Answer: B) 12 minutes
Explanation: (20 × 30) / (20 + 30) = 600 / 50 = 12 minutes.
29. The famous 'Sunabeda Tiger Reserve' is situated in which district of Odisha?
- A) Nuapada
- B) Kalahandi
- C) Nabarangpur
- D) Bolangir
Correct Answer: A) Nuapada
Explanation: Sunabeda Sanctuary covers 600 sq. km in the Nuapada district.
30. Who appoints the Advocate General of a State in India?
- A) Chief Justice of the High Court
- B) Governor of the State
- C) Chief Minister
- D) President of India
Correct Answer: B) Governor of the State
Explanation: Under Article 165, the Governor appoints the Advocate General for the State.
31. If 15 men can complete a project in 12 days, how many men are required to finish the same work in 9 days?
- A) 18 men
- B) 20 men
- C) 22 men
- D) 24 men
Correct Answer: B) 20 men
Explanation: 15 × 12 = M × 9 ⇒ M = 180 / 9 = 20 men.
32. A man introduces a woman saying, 'Her husband is the only son of my father.' How is the woman related to the man?
- A) Sister
- B) Mother
- C) Wife
- D) Sister-in-law
Correct Answer: C) Wife
Explanation: The father's only son is the man himself; her husband is the man, so she is his wife.
33. Which sound frequency range is audible to normal human hearing?
- A) Below 20 Hz
- B) 20 Hz to 20,000 Hz
- C) 20 kHz to 40 kHz
- D) Above 50 kHz
Correct Answer: B) 20 Hz to 20,000 Hz
Explanation: The normal audio frequency spectrum for humans is 20 Hz to 20 kHz.
34. In Microsoft Windows, which shortcut key minimizes all open application windows to show the desktop?
- A) Windows Key + D
- B) Windows Key + E
- C) Ctrl + Esc
- D) Alt + F4
Correct Answer: A) Windows Key + D
Explanation: Win + D toggles the desktop display by minimizing active windows.
35. Find the HCF of 36, 54, and 90.
- A) 12
- B) 18
- C) 9
- D) 6
Correct Answer: B) 18
Explanation: 18 divides 36 (2), 54 (3), and 90 (5). The greatest common factor is 18.
36. Who was the chief architect of modern Bhubaneswar, designing its administrative layout in 1948?
- A) Le Corbusier
- B) Otto Kรถnigsberger
- C) Edwin Lutyens
- D) Charles Correa
Correct Answer: B) Otto Kรถnigsberger
Explanation: German architect Otto Kรถnigsberger planned the modern capital of Bhubaneswar in 1948.
37. Under Article 213 of the Indian Constitution, who has the power to promulgate Ordinances during legislative recess?
- A) The President
- B) The Governor of the State
- C) The Speaker of Assembly
- D) The Chief Minister
Correct Answer: B) The Governor of the State
Explanation: Article 213 gives the Governor ordinance-making powers when the state legislature is in recess.
38. What is the primary greenhouse gas emitted through flooded wetland rice agriculture?
- A) Sulfur dioxide
- B) Methane (CH₄)
- C) Carbon monoxide
- D) Chlorofluorocarbons
Correct Answer: B) Methane (CH₄)
Explanation: Flooded paddy soils create anoxic environments where microbes produce methane.
39. In an email client, what does 'IMAP' stand for?
- A) Internet Message Access Protocol
- B) Internal Mail Automated Process
- C) Integrated Media Access Port
- D) Instant Messaging Application Protocol
Correct Answer: A) Internet Message Access Protocol
Explanation: IMAP enables clients to manage email mailboxes synchronized directly on the server.
40. A rectangular field has length 24 m and diagonal 25 m. Find its width.
- A) 5 m
- B) 7 m
- C) 9 m
- D) 12 m
Correct Answer: B) 7 m
Explanation: Width = √(25² - 24²) = √(625 - 576) = √49 = 7 m.
41. Identify the odd pair from the following:
- A) Kathak : Uttar Pradesh
- B) Bharatanatyam : Tamil Nadu
- C) Kuchipudi : Andhra Pradesh
- D) Kathakali : Karnataka
Correct Answer: D) Kathakali : Karnataka
Explanation: Kathakali is the classical dance drama of Kerala.
42. Which vector mosquito transmits the dengue virus to humans?
- A) Anopheles
- B) Aedes aegypti
- C) Culex
- D) Mansonia
Correct Answer: B) Aedes aegypti
Explanation: Aedes aegypti (day-biting mosquito) spreads dengue and chikungunya.
43. Which transmission medium uses total internal reflection of light pulses to convey data at gigabit speeds?
- A) Coaxial Cable
- B) Optical Fiber Cable
- C) Unshielded Twisted Pair
- D) Radio Microwave
Correct Answer: B) Optical Fiber Cable
Explanation: Optical fiber guides light signals using total internal reflection along silica glass cores.
44. What is the sum of interior angles of a convex polygon with 6 sides (hexagon)?
- A) 540°
- B) 720°
- C) 900°
- D) 1080°
Correct Answer: B) 720°
Explanation: Sum = (6 - 2) × 180° = 4 × 180° = 720°.
45. Which district of Odisha is famous for the tribal Dhokra brass casting craft?
- A) Dhenkanal
- B) Gajapati
- C) Bhadrak
- D) Kendrapara
Correct Answer: A) Dhenkanal
Explanation: Sadeibarni in Dhenkanal is famous for lost-wax Dhokra craft casting.
46. The Fundamental Right to Constitutional Remedies is guaranteed under which Article?
- A) Article 19
- B) Article 21
- C) Article 32
- D) Article 51A
Correct Answer: C) Article 32
Explanation: Article 32 empowers individuals to petition the Supreme Court for writ enforcement.
47. Which gas turns limewater milky when bubbled through it?
- A) Oxygen
- B) Carbon dioxide (CO₂)
- C) Hydrogen
- D) Nitrogen
Correct Answer: B) Carbon dioxide (CO₂)
Explanation: Carbon dioxide forms insoluble calcium carbonate (CaCO₃) precipitate in limewater.
48. In Microsoft Excel, what key combination selects the entire active worksheet?
- A) Ctrl + Shift + Space
- B) Ctrl + A
- C) Both A and B
- D) Ctrl + W
Correct Answer: C) Both A and B
Explanation: In MS Excel, both Ctrl + A and Ctrl + Shift + Space select the entire active worksheet.
49. If the day before yesterday was Thursday, what day will it be two days after tomorrow?
- A) Monday
- B) Tuesday
- C) Wednesday
- D) Thursday
Correct Answer: B) Tuesday
Explanation: Day before yesterday = Thursday ⇒ Today = Saturday. Tomorrow = Sunday ⇒ Two days after = Tuesday.
50. The historic 'Barabati Match' and Barabati Stadium are located in which city of Odisha?
- A) Bhubaneswar
- B) Cuttack
- C) Rourkela
- D) Sambalpur
Correct Answer: B) Cuttack
Explanation: Barabati Stadium is the historic international sports venue located in Cuttack.