According to Indian Standards for fire-fighting installations, a first-aid hose reel should be directly branched from the wet-riser main pipe using a socket and pipe of what diameter?

Which of the following territories was annexed by Lord Dalhousie under the pretext of misgovernance, and not directly through the Doctrine of Lapse?

What was the primary stated reason for the Partition of Bengal in 1905 by Lord Curzon?