question:
In Somalia, militia members sometimes welded a steel plate in the exhaust end of an RPG's tube to deflect pressure away from the shooter when shooting up at US helicopters.
What did some militia members in Somalia weld in the exhaust of the RPG tube to protect the shooter?

answer: yes

question:
Long distance migrants are believed to disperse as young birds and form attachments to potential breeding sites and to favourite wintering sites.
What happens when the site attachment is made?

answer: no

question:
An incandescent lamp that gives 93% or less of its initial light output at 75% of its rated life is regarded as unsatisfactory, when tested according to IEC Publication 60064.
What is the IEC guideline for an unacceptable level of light loss?

answer: yes

question:
Elsewhere, remnants of the medieval water supply system devised by the friars can still be seen today.
Where was the water brought from by the friars' supply system?

answer:
no