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1131 questions found
Spilled mercury on aluminium
- increases susceptibility to hydrogen embrittlement
- may cause impaired corrosion resistance if left in prolonged contact.
- causes rapid and severe corrosion in prolonged contact.
cpster asking:
Why not the third option is correct ???
Hydraulic pipes are made from
- 1100 or 2020 H14.
- annealed steel.
- 5056 or 7075.
cpster asking:
why do we use annealed steel ...as far as i know annealed steel are soft...
Colour identification of an aluminium rivet is
- black.
- violet.
- green.
cpster asking:
what is the reference for this answer
An inductor has 1,000 turns of wire and a cross sectional area of 0.001m2. If the core has a permeability of 0.000,001 and the coil is 0.1m. What is the value of the inductor?
- 100microH.
- 100mH.
- 10mH.
sasna asking:
How to solve
An example of a paramagnetic material is
- silver.
- iron.
- glass.
- aluminium.
fabio.cossi asking:
wrog!!