GATE2015-3-52

Which of the following statements are TRUE, when the cavitation parameter $\sigma =0$?

1. the local pressure is reduced to vapor pressure
2. cavitation starts
3. boiling of liquid starts
4. cavitation stops
1. (i), (ii) and (iv)
2. only (ii) and (iii)
3. only (i) and (iii)
4. (i), (ii) and (iii)

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