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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 132m long passes a telegraph post in 6 seconds. The speed of the train is

Answer : C

Explanation

speed =(132/6)m/sec =22 m/sec.
=(22*18/5) kmph = (396/5) = 79.2 kmph

Q 2 - How much time will a train 171 m long take to cross a bridge 229 m long , if it is running at a speed of 45 kmph?

Answer : C

Explanation

Speed = (45*5/18)m/sec = 25/2 m/sec.
Required time =(171+229)/(25/2) sec. = (400*2/25)sec. =32 sec.

Q 3 - Two trains 105m and 90m long run at the speeds of 45kmph and 72 kmph respectively in opposite directions on parallel tracks. The time which they take to cross the each other, is

Answer : B

Explanation

Sum of the lengths of the train =(105+90)m=  195 m
 Relative speed = (72+45) kmph = 117 kmph = (117*5/18)m/sec. =585/18 m/sec.
Required time =  (195*18/585 ) sec.= 6 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 moving at the rate of 36 km per hour crosses a standing man in 10 sec. It will cross a platform 55m long, in

Answer : D

Explanation

speed of the train = (36*5/18)m/sec. =10m/sec.
Let the length of the second train be x meters. Then, x/10 =10 ⇒ x =100m
Time taken by the train to cross the platform = (100+55)/10 sec.=31/2 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 - 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

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