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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 - Two trains are running in opposite side with speeds of 62 kmph and 40 kmph respectively. If the length of one train is 250m and they cross each other in 18 sec. , the length of the other train is
Answer : C
Explanation
Let the length of the other train be x meters. Sum of their length = (250*x) m Relative speed = (62+40)kmph = 102kmph =(102*5/18) m/sec. = 85/3 m/sec. (250+x)/(85/3) =18 ⇒ 3(250+x) = (85*18) ⇒ 750+3x =1530 ⇒ 3x = 780 ⇒ x = 260 ∴ length of the other train = 260 m
Q 4 - Two trains are running in opposite directions at 36kmph and 45kmph cross each other in 20 sec. if one train is 200m long, the length of the other train is
Answer : D
Explanation
let the length of the other train be x meters. Sum of their length =(200+x)m Relative speed =(36+45) kmph =81kmph = (81*5/18)m/sec. = 45/2 m/sec. (200+x)/ (45/2) = 20 ⇒ 400 +2x = 900 ⇒ 2x = 500 ⇒ x = 250 ∴ length of the other train is 250m
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, each 100m long, moving in opposite directions, cross each other in 8 sec. If one is moving twice fast as the other , then the speed of the faster train is
Answer : C
Explanation
Let the speed of the trains be x m/sec. and 2x n/sec. Relative speed = (x+2x)m/sec. =3x m/sec. (100+100)/8 = 3x ⇒ 24x =200 ⇒ x =25/3 ∴ speed of faster train = (50/3)m/sec. = (50/3*18/5) km/gr = 60 km/hr
Q 7 - Two goods trains each 500m long, are running in opposite directions on parallel tracks. Their speeds are 45km/hr and 30km/hr respectively. The time taken by the slower train to pass the driver of the faster one is
Answer : C
Explanation
Relative speed = (45+30)km/hr = 75km/hr =(75*5/18)m/sec. = 125/6 m/sec. Distance covered = (1500-500)= 1000m Required time = (1000*6/25) sec. =48 sec