
test 3- macchine e meccanismi - 3D 2024
Authored by Nicola caridi
Science
2nd Grade
Used 1+ times

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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nei motori Diesel il forte calore fa incendiare:
Carburante
la Benzina
il gas composto da aria e benzina
la candela
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nelle centrali idroelettriche le turbine mettono in moto un motore elettrico.
vero
falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le leve di 1° genere hanno il fulcro che sta tra la forza motrice e la forza resistente.
vero
falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le leve di 2° genere hanno il fulcro che sta tra la forza motrice e la forza resistente.
vero
falso
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le leve di 3° genere non hanno il fulcro.
vero
falso il fulcro si trova in centro
falso il fulcro si trova in una dell'estremità della leva
vero sono sempre vantagiose
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nei motori a benzina l'accensione della miscela è provocata dalla:
Fiammella.
Scintilla.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vero o falso? Il piano inclinato permette di sollevare corpi leggeri.
Vero
Falso
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