# Trains - Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to **Trains**. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using **Show Answer** button. You can use **Next Quiz** button to check new set of questions in the quiz.

Q 1 - A train with a speed of 60 kmph crosses a pole in 30 seconds. The length of the train is

### Answer : A

### Explanation

speed = (60*5/18)m/sec = 50/3 m/sec. Length of the train = (50/3* 30)m = 500 m

Q 2 - A 130 m long train crosses a bridge 30 seconds at 45 kmph. The length of the bridge is ?

### Answer : C

### Explanation

Let the length of the bridge be x m. Speed of the train = (130+x)/30 m/sec. But, speed =(45*5/18)m/sec. =25/2 m/sec. ⇒ (130+x)/30 = 25/2 ⇒ 130 + x = 375 ∴ x = 245 m

Q 3 - A train 270 m long is moving at a speed of 25 kmph. It will cross a man coming from the opposite direction at a speed of 2kmph in

### Answer : A

### Explanation

Their relative speed =(25+2)kmph =27kmph = (27*5/18) m/sec. =15/2 m/sec. Required time = 270/ (15/2) sec. = (270*2)/15 sec.= 36 sec.

Q 4 - A 150 m long train cross a walking at the speed of 6kmph in the opposite direction in 6 sec. The speed of the train is

### Answer : B

### Explanation

Let the speed of the train be x kmph. Their relative speed = (x+6) kmph = [ (x+6) *5/18]m/sec. ∴ 150/ (x+6)*5/18 = 6 ⇒ 30 (x+6) =(18*150) ⇒ 30x+180= 2700 ⇒ 30x = 2520 ⇒ x = 84 ∴ speed of the train is 84 kmph.

Q 5 - A train takes 5 sec. to pass an electric pole. If the length of the train is 120 m, the time taken by it to cross a railway platform 180 m long ,is

### Answer : A

### Explanation

Speed of the train = (120/5)m/sec. =24m/sec. Time taken to cross the platform =(120+180)/24 sec. =300/24 sec= 25/2 sec.

Q 6 - Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 sec.What is the length of the faster train?

### Answer : D

### Explanation

Relative speed = (40-20)km/hr = 20km/hr =(20*5/18)m/sec. =50/9 m/sec. Length of faster train = distance travelled by it in 5 sec. at 50/9 m/sec. =(50/9*5)m = 250/9 m

Q 7 - A train X start from Meerut at 4 pm and reaches Ghaziabad at 5p.m while another train Y start from Ghaziabad at 4p.m and reaches Meerut at 5.30 p.m . The two train will cross each other at

### Answer : A

### Explanation

Let the distance between meerut and Ghaziabad be x km. Time taken by y to cover x km =3/2 hours. Time taken by X to cover x km = 1 hours Speed of x = xkm/hr speed of y = 2x/3 km/hr Xy+2xy/3 =x ⇒ y (1+2/3) =1 ⇒ y = 3/5 hours = (3/5*60) min. =36 min. Hence, the two train meet at 4.36 p.m