JKSSB Sub Inspector MCQ, Important Questions 2025 With Explanation

Who is known as the “Iron Man of India”?
A) Jawaharlal Nehru
B) Sardar Patel
C) Subhas Chandra Bose
D) B.R. Ambedkar
Answer: B) Sardar Patel
Explanation: Sardar Vallabhbhai Patel is called the “Iron Man of India” for his role in unifying the princely states into the Indian Union post-independence.
What is the capital of Ladakh?
A) Leh
B) Srinagar
C) Kargil
D) Jammu
Answer: A) Leh
Explanation: Leh serves as the summer capital of Ladakh, while Kargil functions as the winter capital.
Who was the first Governor-General of independent India?
A) Rajendra Prasad
B) C. Rajagopalachari
C) Lord Mountbatten
D) Sardar Patel
Answer: C) Lord Mountbatten
Explanation: Lord Mountbatten was the last British Governor-General and the first of independent India until 1948.
Which is the longest river in India?
A) Ganga
B) Brahmaputra
C) Godavari
D) Yamuna
Answer: A) Ganga
Explanation: The Ganga is the longest river within India, spanning approximately 2,525 km.
When was the Constitution of India adopted?
A) 15th August 1947
B) 26th January 1950
C) 26th November 1949
D) 2nd October 1947
Answer: C) 26th November 1949
Explanation: The Constitution was adopted on 26th November 1949 and came into effect on 26th January 1950.

What comes next in the sequence: 3, 6, 9, 12, …?
A) 15
B) 18
C) 21
D) 24
Answer: A) 15
Explanation: The series increases by 3. The next number is 12+3=1512 + 3 = 15+3=15.
If ALL is coded as 123, then BAT is coded as:
A) 213
B) 214
C) 223
D) 224
Answer: B) 214
Explanation: Assign letters numbers based on their alphabetical order: A=1, L=12, B=2, T=20.
Find the odd one out: 16, 36, 64, 81.
A) 16
B) 36
C) 64
D) 81
Answer: D) 81
Explanation: All other numbers are perfect squares of even numbers. 81 is the square of 9, which is odd.
What is the missing term in the series: 2, 6, 12, 20, …?
A) 28
B) 30
C) 32
D) 36
Answer: A) 28
Explanation: The difference between terms increases by 2 (4, 6, 8…). Adding 8 to 20 gives 28.
A is the father of B, but B is not the son of A. Who is B?
A) Daughter
B) Son
C) Nephew
D) Niece
Answer: A) Daughter
Explanation: If B is not the son, B must be the daughter of A.

Simplify: 15 × 2 ÷ 5 = ?
A) 5
B) 6
C) 3
D) 7
Answer: B) 6
Explanation: 15×2=3015 \times 2 = 30×2=30, 30÷5=630 ÷ 5 = 6÷5=6.
What is 40% of 250?
A) 50
B) 75
C) 100
D) 125
Answer: B) 75
Explanation: 250×4=75250 \times 0.4 = 75×0.4=75.
What is the LCM of 6 and 8?
A) 12
B) 24
C) 48
D) 36
Answer: B) 24
Explanation: The least common multiple of 6 and 8 is 24.
Solve for x: 2x + 3 = 9.
A) 2
B) 3
C) 6
D) 12
Answer: A) 3
Explanation: Subtract 3 from both sides: 2x=62x = 6=6. Divide by 2: x=3x = 3=3.
A man covers 15 km in 3 hours. What is his speed?
A) 3 km/h
B) 4 km/h
C) 5 km/h
D) 6 km/h
Answer: C) 5 km/h
Explanation: Speed = Distance ÷ Time = 15÷3=515 ÷ 3 = 5÷3=5 km/h.

Who won the 2023 ICC Cricket World Cup?
(Refer to updated sources)
What is the current theme of World Environment Day 2025?
(Refer to updated sources)
Who is the current Chief Minister of Jammu and Kashmir?
(Refer to updated sources)
Which country recently became the newest member of BRICS?
(Refer to updated sources)
What is the latest defense initiative of India in 2025?
(Refer to updated sources)

What is the pH of pure water?
A) 7
B) 8
C) 9
D) 10
Answer: A) 7
Explanation: Pure water is neutral, with a pH of 7.
What is the chemical formula for common salt?
A) NaCl
B) KCl
C) NaOH
D) HCl
Answer: A) NaCl
Explanation: Sodium chloride (NaCl) is the formula for common salt.
Which organ is responsible for filtering blood in humans?
A) Heart
B) Kidney
C) Liver
D) Lungs
Answer: B) Kidney
Explanation: The kidney filters blood to remove waste and produce urine.
What is the unit of electric current?
A) Volt
B) Ampere
C) Watt
D) Ohm
Answer: B) Ampere
Explanation: Ampere is the SI unit of electric current.
What gas do plants release during photosynthesis?
A) Oxygen
B) Carbon Dioxide
C) Nitrogen
D) Hydrogen
Answer: A) Oxygen
Explanation: Plants release oxygen as a byproduct of photosynthesis.

Which state is known as the “Land of Five Rivers”?
A) Haryana
B) Punjab
C) Rajasthan
D) Uttar Pradesh
Answer: B) Punjab
Explanation: Punjab is named after the five rivers that flow through it.
What is the currency of Japan?
A) Dollar
B) Yen
C) Won
D) Pound
Answer: B) Yen
Explanation: The official currency of Japan is the Yen.
Who wrote the book “Wings of Fire”?
A) A.P.J. Abdul Kalam
B) R.K. Narayan
C) Rabindranath Tagore
D) Arundhati Roy
Answer: A) A.P.J. Abdul Kalam
Explanation: “Wings of Fire” is an autobiography of Dr. A.P.J. Abdul Kalam.
What is the National Tree of India?
A) Neem
B) Peepal
C) Banyan
D) Mango
Answer: C) Banyan
Explanation: The Banyan tree is the National Tree of India.
What is the tenure of the President of India?
A) 4 years
B) 5 years
C) 6 years
D) 7 years
Answer: B) 5 years
Explanation: The President of India is elected for a 5-year term.