Do trains run on rails?

Do trains run on rails?
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Yes.
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A and B are two trains 150m and 100m long are running on parallel rails at the rate of 30 kmph and 40 kmph respectively.In how much time will they cross each other if they are running in the same direction. A) 80 sec B) 90sec C) 105sec D) 45sec

Description : A and B are two trains 150m and 100m long are running on parallel rails at the rate of 30 kmph and 40 kmph respectively.In how much time will they cross each other if they are running in the same direction. A) 80 sec B) 90sec C) 105sec D) 45sec

Last Answer : ANSWER: B Explanation:  Length of first train=150m  Length of second train=100m  Speed of first train =30kmph  Speed of second train =40kmph  If the direction is given in the same direction then we subtract ... +100)m  =250m  Time = distance/speed  Time taken =(250*9/25)sec  =90 sec.

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Each of the metal bars that form the track that trains run on a) coach b) railing c)rail d) bogie

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X and y are two trains of length 500m and 400m run on parallel lines. When they run in the same direction it will take 60 sec to cross each other. When they run in opposite direction, it will take 20 sec to cross each other. Find the speed of 2 trains (in km/hr) A) 116 and 42 km/hr B) 54 and 78km/hr C) 104 and 60km/hr D) 108 and 54km/hr

Description : X and y are two trains of length 500m and 400m run on parallel lines. When they run in the same direction it will take 60 sec to cross each other. When they run in opposite direction, it will take 20 sec to cross each ... ) A) 116 and 42 km/hr B) 54 and 78km/hr C) 104 and 60km/hr D) 108 and 54km/hr

Last Answer :  ANSWER : D Explanation:  Let the speed of 2 trains be a1 and a2  Total distance covered to cross each other = (500 + 400)m  = 900m  When they run in the same direction,  Relative speed = a1 - a2  = 900 /60 ... hr  a 2= (15 * 18 / 5)m/s  = 54km/hr  Speed of two trains are 108 and 54 km/hr

Two mail trains Pand Q of 300 m and 600m, run at speed of 130 km/hr and 160 km/hr respectively, in the direction opposite direction to each other. Find the time required to cross each other after the moment they met? A) 11.17 sec B) 12sec C) 9.10sec D) 21sec

Description : Two mail trains Pand Q of 300 m and 600m, run at speed of 130 km/hr and 160 km/hr respectively, in the direction opposite direction to each other. Find the time required to cross each other after the moment they met? A) 11.17 sec B) 12sec C) 9.10sec D) 21sec

Last Answer :  ANSWER:A Explanation:  Length of train P = 300 m  Length of train Q = 600 m  Speed of train p = 130 kmph  Convert km/hr into m/s,  Speed of train p =(130 *5/18)m/s  = 650/18 m/s  = 36.11 m/ ... train B)  = (300+600)m = 900 m We know, time =distance /speed  = 900/ 80.55  = 11.17seconds

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When a train is rounding a curve to prevent side thrust on the wheel flanges of cars a.Opposite thrust is created to counter balance this thrust b.Guide rail sections are provided to take care of thrust c.Thrust eliminators are provided in the train d.Outside rails are realised e.Rail section is made thick on curvature

Description : When a train is rounding a curve to prevent side thrust on the wheel flanges of cars a.Opposite thrust is created to counter balance this thrust b.Guide rail sections are provided to take care of ... are provided in the train d.Outside rails are realised e.Rail section is made thick on curvature

Last Answer : d. Outside rails are realised

Are heated towel rails safe All of our electric towel rails are pre-filled with a water-based solution containing a mix of central heating preservatives. What is the best price of Towel Rail per Packet?

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Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, etc. is called

Description : Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, etc. is called

Last Answer : Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, ... C. Wind break D. Both B and C

Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, etc. is called

Description : Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, etc. is called

Last Answer : Plantations of rows of trees and shrubs along roads, rails, around residential complexes, educational institutes, ... C. Wind break D. Both B and C

The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Description : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Last Answer : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in ... ,iii C. ii,iv D. I,iii,iv

The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Description : The addition of high proportions of maganese makes steel useful in making rails or railroads because manganese useful in making rails or railroads bec

Last Answer : The addition of high proportions of maganese makes steel useful in making rails or railroads because ... . can show highest oxidation state of +7

Which vehicle will be most at risk from the tram rails?

Description : Which vehicle will be most at risk from the tram rails?

Last Answer : The bicycle is the vehicle most at risk from skidding on the metal tram-lines (rails), especially in the rain. Or, as happened to me when cycling through Liverpool, England, many years ... (rectangular shaped granite blocks that covered the surface of many Liverpool streets at that period (1965ish).

What size side rails are available for a twin bed?

Description : What size side rails are available for a twin bed?

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In railway tracks, a small gap is left between the rails _____. A. To permit the shrinkage of metal B. To save the cost of metal C. To allow for the expansion during heat D. None of the above

Description : In railway tracks, a small gap is left between the rails _____. A. To permit the shrinkage of metal B. To save the cost of metal C. To allow for the expansion during heat D. None of the above

Last Answer : ANSWER: C

In railway tracks, a small gap is left between the rails _____. A. To permit the shrinkage of metal B. To save the cost of metal C. To allow for the expansion during heat D. None of the above

Description : In railway tracks, a small gap is left between the rails _____. A. To permit the shrinkage of metal B. To save the cost of metal C. To allow for the expansion during heat D. None of the above

Last Answer : ANSWER: C

On Indian Railways standard length of rails for Meter Gauge track, is A. 33 ft (10.06 m) B. 36 ft (10.97 m) C. 39 ft (11.89 m) D. 42 ft (12.8 m)

Description : On Indian Railways standard length of rails for Meter Gauge track, is A. 33 ft (10.06 m) B. 36 ft (10.97 m) C. 39 ft (11.89 m) D. 42 ft (12.8 m)

Last Answer : C [39 ft (11.89 m)]

On Indian Railways standard length of rails for Broad Gauge track, is A. 33 ft (10.06 m) B. 36 ft (10.97 m) C. 39 ft (11.89 m) D. 42 ft (12.8 m)

Description : On Indian Railways standard length of rails for Broad Gauge track, is A. 33 ft (10.06 m) B. 36 ft (10.97 m) C. 39 ft (11.89 m) D. 42 ft (12.8 m)

Last Answer : D [42 ft (12.8 m)] Explanation: Indian Railways is divided into 18 zones. Recently added South Coast Railway zones in Indian Railway (2019).

In India the rails are manufactured by A. Open hearth process B. Duplex process C. Both A & B D. None of These

Description : In India the rails are manufactured by A. Open hearth process B. Duplex process C. Both A & B D. None of These

Last Answer : C [Both A & B]

The weight of the rails depends upon A. Gauge of track B. Speed of train C. Spacing of Sleepers D. All the above

Description : The weight of the rails depends upon A. Gauge of track B. Speed of train C. Spacing of Sleepers D. All the above

Last Answer : D [All the above] Explanation: Indian Railways is divided into 18 zones. Recently added South Coast Railway zones in Indian Railway (2019).

Fish plates are used in railway tracks to A. fix rails to the sleepers B. fix sleepers to the ground C. Join two rails D. join two coaches

Description : Fish plates are used in railway tracks to A. fix rails to the sleepers B. fix sleepers to the ground C. Join two rails D. join two coaches

Last Answer : C [Joint two rail] Explanation: In rail terminology, a fishplate, splice bar or joint bar is a metal bar that is bolted to the ends of two rails to join them together in a track.

Which of the following is used in welding broken pieces of iron rails and machine parts? (1) Aluminium sulphate (2) Solder (3) Aluminium powder (4) None of the above

Description : Which of the following is used in welding broken pieces of iron rails and machine parts? (1) Aluminium sulphate (2) Solder (3) Aluminium powder (4) None of the above

Last Answer : (3) Aluminium powder Explanation: Aluminum powder is a highly flammable powder created by grinding aluminum into fine grains of material. In times past, this flammable metal powder was ... of the tools utilized in various applications of pyrotechnics, including the creation of fireworks displays.

In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Description : In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Last Answer : (4) accidents due to expansion in summer can be avoided. Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. ... on the tracks. The same applies in many other fields of engineering, i.e. bridge building.

A small gap is left at the joints of rails in a railway track to – (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Description : A small gap is left at the joints of rails in a railway track to – (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Last Answer : (1) avoid the tracks being distorted due to seasonal temperature variation Explanation: A small gap is left at the joints of rails in a railway track to provide space for the expansion of rail pieces when the temperature rises during summer.

A gap is left between two rails of a railway track to accommodate ______ of the metal. (1) areal expansion (2) volume expansion (3) liner expansion (4) apparent expansion

Description : A gap is left between two rails of a railway track to accommodate ______ of the metal. (1) areal expansion (2) volume expansion (3) liner expansion (4) apparent expansion

Last Answer : (3) liner expansion Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. To a first approximation, the ... linear expansion coefficient". It is the fractional change in length per degree of temperature change.

The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is A. 1 in 100 upward B. 1 in 500 upward C. 1 in 100 downward D. 1 in 503 upward

Description : The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is A. 1 in 100 upward B. 1 in 500 upward C. 1 in 100 downward D. 1 in 503 upward

Last Answer : ANS: C

A 'dead front' switchboard is one _____________. A. without switches on it B. with insulated switches and no exposed terminals C. without circuit breakers D. without safety hand rails nor rubber mats

Description : A 'dead front' switchboard is one _____________. A. without switches on it B. with insulated switches and no exposed terminals C. without circuit breakers D. without safety hand rails nor rubber mats

Last Answer : Answer: B

Which of the following is used in welding broken pieces of iron rails and parts of machine –

Description : Which of the following is used in welding broken pieces of iron rails and parts of machine –

Last Answer : Aluminum Powder