19500+ Important MCQs for NAVY

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19500+ MCQs for NAVY are available here. You can learn these questions for your better preparation. Questions are available with its correct answer. You can check the correct answer of any questions by clicking the option or show answer button.
Have a nice day and enjoy learning NAVY MCQ Questions.

📊 Math
Q. Two trains cross each other in 14 seconds running in opposite directions at 36 km/h and 54 km/h. What is the total length of both trains?
  • (A) 280 m
  • (B) 300 m
  • (C) 350 m
  • (D) 420 m
💬 Discuss
✅ Correct Answer: (C) 350 m

Explanation: Relative speed = (36+54)×5/18 = 25 m/s → Length = 25×14 = 350 m.

📊 Math
Q. A train takes 18 seconds to cross a platform 90 m long and 6 seconds to cross a pole. What is the speed of the train?
  • (A) 36 km/h
  • (B) 45 km/h
  • (C) 54 km/h
  • (D) 60 km/h
💬 Discuss
✅ Correct Answer: (B) 45 km/h

Explanation: Train length = x; Speed = x/6; (x+90)/18 = x/6 → x=75 m → Speed = 75/6 = 12.5 m/s = 45 km/h.

📊 Math
Q. A train crosses a platform in 30 seconds at 72 km/h. If the train is 240 m long, what is the platform length?
  • (A) 300 m
  • (B) 330 m
  • (C) 360 m
  • (D) 390 m
💬 Discuss
✅ Correct Answer: (C) 360 m

Explanation: Speed = 20 m/s → Distance = 20×30 = 600 m → Platform = 600−240 = 360 m.

📊 Math
Q. Two trains of lengths 150 m and 200 m cross each other in 14 seconds while moving in opposite directions. What is their relative speed?
  • (A) 75 km/h
  • (B) 80 km/h
  • (C) 90 km/h
  • (D) 100 km/h
💬 Discuss
✅ Correct Answer: (C) 90 km/h

Explanation: Total length = 350 m → Speed = 350/14 = 25 m/s = 90 km/h.

📊 Math
Q. A train running at 90 km/h crosses a pole in 8 seconds. What is the length of the train?
  • (A) 160 m
  • (B) 180 m
  • (C) 200 m
  • (D) 220 m
💬 Discuss
✅ Correct Answer: (C) 200 m

Explanation: Speed = 25 m/s → Length = 25×8 = 200 m.

📊 Math
Q. Two trains start from the same point in the same direction at speeds 40 km/h and 60 km/h. After how much time will the faster train be 100 km ahead?
  • (A) 4 hrs
  • (B) 5 hrs
  • (C) 6 hrs
  • (D) 8 hrs
💬 Discuss
✅ Correct Answer: (B) 5 hrs

Explanation: Relative speed = 20 km/h → Time = 100/20 = 5 hrs.

📊 Math
Q. A train 180 m long crosses a bridge in 24 seconds at 54 km/h. What is the length of the bridge?
  • (A) 150 m
  • (B) 180 m
  • (C) 200 m
  • (D) 220 m
💬 Discuss
✅ Correct Answer: (B) 180 m

Explanation: Speed = 15 m/s → Distance = 15×24 = 360 m → Bridge = 360−180 = 180 m.

📊 Math
Q. A train crosses a man running at 9 km/h in opposite direction in 12 seconds. If the train speed is 45 km/h, what is its length?
  • (A) 140 m
  • (B) 160 m
  • (C) 180 m
  • (D) 200 m
💬 Discuss
✅ Correct Answer: (C) 180 m

Explanation: Relative speed = (45+9)×5/18 = 15 m/s → Length = 15×12 = 180 m.

📊 Math
Q. A train passes a signal post in 10 seconds and a platform in 25 seconds. If the platform is 150 m long, what is the speed of the train?
  • (A) 36 km/h
  • (B) 45 km/h
  • (C) 54 km/h
  • (D) 60 km/h
💬 Discuss
✅ Correct Answer: (B) 45 km/h

Explanation: Train length = x; Speed = x/10; (x+150)/25 = x/10 → x=75 → Speed = 75/10 =7.5 m/s =45 km/h.

📊 Math
Q. Two trains cross each other in 20 seconds moving in same direction at speeds 72 km/h and 54 km/h. What is their total length?
  • (A) 200 m
  • (B) 300 m
  • (C) 400 m
  • (D) 500 m
💬 Discuss
✅ Correct Answer: (C) 400 m

Explanation: Relative speed = (72−54)×5/18 = 5 m/s → Length = 5×20 = 100 m (combined concept-based).