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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 210 m long is travelling with a speed of 63 kmph. How long will it take to pass a signal post?

Answer : A

Explanation

speed =(63*5/18)m/sec =35/2 m/sec
Required time =(210*2/35) sec. =12 sec.

Q 2 - A train 100 m long crosses a bridge of length 100 m in 6 sec. The train will cross another bridge of length 200 m in:

Answer : B

Explanation

Time taken to cover (100+100)m= 6 sec
Speed of the train = 200/6  m/sec.
Time taken to cover (100+200)m = (300*6/200) sec =9 sec.

Q 3 - A train crosses a pole in 15 sec. while it crosses a 100m long platform in 25 sec. The length of the train is

Answer : C

Explanation

Let the length of the train be x metres. Then,
 x/15 =(100+x)/25  ⇒ 25x=1500+15x ⇒ 10x = 1500 ⇒ x = 150
Hence, the length  of the train is 150 m.

Q 4 - A train passes two persons two persons walking in the same direction in which the train is going. These persons are walking at the rate of 3km/hr and 5km/hr and the train passes them completely in 10sec. and 11 sec. respectively. The speed of the train is

Answer : B

Explanation

Let the length of the train be x km  and its speed be y km/hr.
Speed of the train relative to first man =(y-3)km/hr 
Speed of the train relative to second man = (y-5)km/hr
x/ (y-3)  = 10/(60*60)  and   x/ (y-5) = 11/(60*60)
⇒  y-3 =360x and 11y-55 =3600x 
⇒ 10y-30= 3600x and 11y-55 = 3600x 
⇒  10y -30 = 3600x  and  11y -55 = 3600x
⇒  10y-30 =11y-55 ⇒  y= 25 
∴  speed of the train = 25km/hr.

Q 5 - Two trains running in the same direction at 40 km/hr and 22 km/hr completely pass one another in 1 minute. If the length of the first train is 125 m, the length of the second train is

Answer : C

Explanation

Relative speed =  (40-22)k/hr = 18km/hr =(18*5/18)m/sec.=5m/sec.
Let the length of the second train be x meters. then,
(125+x)/5= 60 ⇒ 125+x=300 ⇒ x =175m

Q 6 - Two train travel in opposite direction at 36 kmph and 45kmph. A man sitting in a slower train passes the faster train in 8 sec. The length of the faster train is

Answer : D

Explanation

Relative speed =(36+45)km/hr =(81*5/18)m/sec. =45/2m/sec.
Length of the train = distance covered in 8 sec. at 45/2m sec. = (45/2*8)= 180 m

Q 7 - Two trains , one from station A to station B and the other from B to A start simultaneously . After meeting , the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is

Answer : B

Explanation

(A's speed) : (b's speed ) = √b:√a= √16:√9 = 4:3

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