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 (a)   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 (a)   .

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

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