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The maximum allowable noise dose is
- a sustained noise level of exactly 85 dB for eight hours.
- any combination of noise and time which exceeds 90 dB TWA.
- a continuous noise exposure level of 70 dB for eight hours.
Maximum allowable cannot be OVER 90db twa? Surely 90db twa IS the max, not something OVER this level?
Under what conditions will an aircraft create best lift?
- Hot damp day at 1200 ft.
- Cold dry day at 200 ft.
- Cold wet day at 1200 ft.
Cold dry is completely opposite in meaning. What is a cold dry day ? Can someone explain .
In corrosion, the electrode that loses electrons is
- the cathode.
- either the cathode or the anode depending upon the electrolyte.
- the anode.
I don't understand.
Cathode is positive and electrons are negative. How can electrons ever be attracted to anode?
A journal load is
- compression.
- radial.
- axial.
Question is a bit ambiguous! Wouldn't the direction of load be radial and the type of load be compression?
In a resonant parallel circuit, current is
- zero.
- minimum.
- maximum.
Please can anyone explain