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1131 questions found
In a an DC motor, the rotation of the MNA
- is opposite to the rotation of the armature.
- is slightly less speed than the rotation of the armature.
- is the same as the rotation of the armature.
MNA rotates in the same direction than the armature, right?
Which of the following would be used to calculate transformer turns ratio?
- Secondary turns / primary turns.
- Primary turns * secondary turns.
- Primary turns / secondary turns.
isn't this wrong?
The colour code on sheet metal indicates
- only the specification of the material.
- the spec and gauge of the material.
- that the material is from an approved source.
any link plz
When examining a piece of metal through a magnifying glass, hair line cracks would indicate
- crevice corrosion.
- intergrannular corrosion.
- surface corrosion.
r u sure about the answer or could it be :surface corrosion'
A mass of 10kg placed 2 metres away from a pivot will have a moment of
- 196 NM.
- 150 NM.
- 980 NM.
Is this correct I thought it would have been 20nm