1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Diano4ka-milaya [45]
3 years ago
14

Which best describes a development that improved railroad safety? A. Railroads adopted standard time to coordinate schedules. B.

Railroads offered fold-down beds so that people could sleep more comfortably. C. Companies standardized track technology so that they could use each other’s tracks. D. Companies replaced hand-operated brakes with air brakes on trains.
History
2 answers:
sweet-ann [11.9K]3 years ago
7 0

Answer:

Option: D. Companies replaced hand-operated brakes with air brakes on trains.

Explanation:

In the early period, trains manually stopped by involving in hand-operated breaks. The handbrake worked by handling large wheel in the coach, attached to chains and levers which set brake pads under the train. To improve the safety of the rail coach, air breaks replaced because they were much more powerful and reliable, than the manual one.

xxTIMURxx [149]3 years ago
3 0

The correct answer is option D. "Companies replaced hand-operated brakes with air brakes on trains". The development of air brakes on trains was a significant improvement of railroad safety. Air brakes function much more faster than hand-operated brakes, because hand-operated brakes required that the brakemen turned the brakes in one car and jump to the next to set the brakes on, and so on.

You might be interested in
What method did the U.S. use to
astraxan [27]

Answer:

convoy expanation

Explanation:

5 0
3 years ago
What did the Medici family control for several years?
Ket [755]
The Medici Family Ruled the City of Florence throughout the Renaissance.

3 0
3 years ago
How did Philippine literatures develop from ancient time to present.​
Strike441 [17]

Answer:

Philippine literature is literature associated with the Philippines from prehistory, through its colonial legacies, and on to the present.

Explanation:

<u>Hope this helps! :)</u>

3 0
3 years ago
Explain why young people are the target audience for drink driving
miss Akunina [59]

Answer:

Since they are not legally allowed to have alchol they are not willing to call a cab, friend, sibling, or parent to pick them up because the do not want to get in trouble. In addition, at this age they are more reckless.

Explanation:

7 0
3 years ago
Who led the Democratic Republicans?
Serga [27]
Thomas Jefferson & James Madison 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Issac Newton is a scientist most famous for explaining
    14·1 answer
  • What were the Chinese people seeking freedom from during the thirteenth and fourteenth centuries?
    12·2 answers
  • zahara Smith is wondering how she can make her check stretch enough to afford her monthly cable, water, grocery, and cell phone
    5·2 answers
  • How did he United States develop politically and economically in the early 1800s ?
    13·1 answer
  • based on the law of superposition, in undisturbed rock bed, where should the youngest rock layers be found?
    5·1 answer
  • You have read two texts about Deborah Sampson, "America's First Woman Soldier" and "Secret Soldier." Write an essay examining th
    15·1 answer
  • Identify and explain a cause-and-effect relationship associated with the historical developments in documents 1 and 2. Be sure t
    10·1 answer
  • Extermination Centers Many people died in the
    5·1 answer
  • 1. What is the summit of the Creator's work?
    6·2 answers
  • I NEED A ANSWER ASAP
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!