The distance through which the tongue rail moves laterally at the toe of the switch for movement of trains is called

The distance between two stations, Dhaka and Chittagong is 450 km. A train starts at 5 pm from Dhaka and moves towards chittagong at an average speed of 60 km/hr. Another train starts from Chittagong at 4:20 pm and moves towards Dhaka at an average speed of 80 km/hr. At what time will the two trains meet?

A

6:10 pm

B

7:05 pm

C

8:15 pm

D

6: 35 pm

A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?

A

48

B

40

C

36

D

28

When was Petrol Rail car started on Kalka - Shimla Rail route?

A

1911

B

1913

C

1918

D

1917

On a single rail track, goods trains loaded with heavy iron material run starting from ‘A’ to ‘B’ and then empty wagons run from ‘B’ to ‘A’. The amount of creep in the rails:

A

Will be more in the direction of B to A

B

Will be more in the direction of A to B

C

Will be maximum at the middle of A and B

D

Cannot be determined from the given data

Two trains of equal length , running in opposite directions, pass a pole in 18 and 12 seconds. The trains will cross each other in -

A

15.5 seconds

B

18.8 seconds

C

20.2 seconds

D

14.4 seconds

The reason clean energy is hard to come by is that we've spent the past 150 years depending on oil, and it's quite difficult to make the switch. Here "difficult to make the switch" is related to

A

Replacing analogue oil with digital fluid

B

manufacturing

C

inventing

D

controlling

You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?

A

The router is not configured for the new host

B

The VTP configuration on the switch is not updated for the new host

C

The host has an invalid MAC address

D

The switch port the host is connected to is not configured with the correct VLAN membership

The switch that has the fastest speed of operation is ___________ switch.

A

Electronic

B

Mechanical

C

Electromechanical

D

None of the above

The most inexpensive switch is ___________ switch.

A

Electronic

B

Mechanical

C

Electromechanical

D

None of the above

If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

A

Discard it and send an error message back to the originating host

B

Flood the network with the frame

C

Add the source address and port to the MAC address table and forward the frame out the destination port

D

Add the destination to the MAC address table and then forward the frame

The distance through which the tongue rail moves laterally at the toe of the switch for movement of trains is called

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