A train running at a certain speed crosses a stationary engine in 2 – McqOptions

MCQOPTIONS

1.	A train running at a certain speed crosses a stationary engine in 20 seconds . to fine out the speed of the train which of the following information is necessary ?
A.	Only the length of the train
B.	Only the length of the engine
C.	Either the length of the train or the length of the engine
D.	Both the length of the train or the length of the engine
Answer» E.

Discussion

No Comment Found

Related MCQs

A train travelling at a speed of 75 mph enters a tunnel 3(1/2) miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
Two trains running in opposite directions cross a man standing on the platform in 27 seconds and 17 seconds respectively and they cross each other in 23 seconds. The ratio of their speeds is :
A train X starts from Meerut at 4 p.m. and reaches Ghaziabad at 5 p.m. while another train Y starts from Ghaziabad at 4 p.m. and reaches Meerut at 5.30 p.m. The two trains, will cross each other at :
A train 800 metres long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in metres) is:
A train 240 m. long passed a pole in 24 seconds. How long will it take to pass a platform 650 m. long?
A train covers a distance of 12 km in 10 minutes. If it takes 6 seconds to pass a telegraph post, then the length of the train is:
A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge of 140 m long?
How long does a train 110 metres long running at the speed of 72 km/hr take to cross a bridge 132 metres in length?
A train 280 m long, running with a speed of 63 km/hr will pass a tree in:
In what time will a train 100 metres long cross an electric pole, If its speed be 144 km/hr?