Pumps - Chapter 4, Assignment 3

All fire pumps with adjustable-speed drivers do not require a pressure-relief valve.

• true
• false

The NFPA 20 definition of horizontal split-case pumps includes pumps which are installed with the shaft vertical.

• true
• false

Setting the impellers of a vertical-shaft pump is the responsibility of the installing contractor.

• true
• false

An ordinary swing check valve may be utilized as an automatic air-release valve in a vertical-shaft pump installation.

• true
• false

The shafts connecting a diesel engine and a right-angle gear drive must be perfectly aligned.

• true
• false

A gage in the supply side of a horizontal shaft fire pump will register:

• negative pressure.
• both 1 and 2
• positive pressure.
• neither 1 or 2

An eccentric tapered reducer is installed with the taper __________________ when the suction pipe is not the same size as the pump suction flange.

The control valve in the suction piping to a fire pump must be an _________________.

The control valve on the system side of a fire-pump check valve may be either an indicator gate valve or a _______________________.

In an automatic controlled fire pump system, replenishing pressure loss due to leaks, requires the installation of a/an _______________