
Materiales y características de escaleras
Interactive Video
•
Science, Design, Life Skills
•
7th - 10th Grade
•
Practice Problem
•
Hard
Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es una ventaja de las escaleras de aluminio sobre las de madera?
Se deterioran con el tiempo
Son más difíciles de colocar
Son más ligeras y robustas
Son más pesadas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué ingrediente NO se utiliza para reforzar el aluminio?
Cobre
Magnesio
Hierro
Silicio
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sucede con el aluminio y los ingredientes en el horno?
Se solidifican inmediatamente
Se transforman en una masa líquida
Se evaporan
Se convierten en polvo
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el peso aproximado de cada tronco de aluminio?
1000 kilos
500 kilos
200 kilos
100 kilos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué se utiliza para enderezar los largueros de aluminio?
Un sistema de mordazas
Un martillo
Un rodillo
Una prensa manual
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué se coloca en los largueros para evitar que la escalera resbale?
Caucho
Gomaespuma
Cinta adhesiva
Tacos de plástico
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de refuerzo se coloca en las escaleras de tijera?
Horizontal
Circular
Diagonal
Vertical
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