Trains - Online Quiz


Advertisements


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.

Questions and Answers

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

A - 500 m

B - 750 m

C - 900 m

D - 1000 m

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 ?

A - 200 m

B - 225 m

C - 245 m

D - 250 m

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

A - 36 sec

B - 32 sec

C - 28 sec

D - 24 sec

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

A - 66 kmph

B - 84 kmph

C - 96 kmph

D - 106 kmph

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

A - 25/2 sec

B - 15/2 sec

C - 13/2 sec

D - 10/3 sec

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?

A - 23 m

B - 34 m

C - 27 m

D - 250/9 m

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

A - 4.36 pm

B - 4.42 pm

C - 4.48 pm

D - 4.50 pm

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


aptitude_trains.htm

Advertisements