When starting a centrifugal pump that is part of a manifold with no check valves. - ANSWER You should open the suction valve, start the pump and open the discharge valve slowly.
A valve inserted in a water line between the corporation stop and the water meter is generally called. - ANSWER Curb c...
When starting a centrifugal pump that is part of a manifold with no check valves. - ANSWER You should
open the suction valve, start the pump and open the discharge valve slowly.
A valve inserted in a water line between the corporation stop and the water meter is generally called. -
ANSWER Curb cock
To check sheave wear. - ANSWER Measure each groove angle
Variable pitch sheaves may be used in some cases to provide which of the following types of speed
changes - ANSWER small
Absolute pressure is gauge - ANSWER Pressure plus 14.7 psi
Which of the following best describes the basic types of sprinklers systems in a building - ANSWER
Standard wet-type system, Standard dry-type system,
A deluge system
Power equals - ANSWER Force x distance divided by time
Torches should be inspected for leakage at the - ANSWER Tip,
Valves,
Hose connections
Smoke detection is usually accomplished by using either photo-electric scanning, ionization chambers or
smoke reflection devices? - ANSWER True
, If a coupling is not properly aligned - ANSWER 1. Will fail quicker
2. Wear out equipment and the bearing
To protect a pump and motor against slight misalignment, they are often connected by a. - ANSWER
Flexible coupling
A weld used to fill a corner, as in a lap joint or a t joint, is called a? - ANSWER Fillet weld
Greases are classified as to their mobility and oil content by the? - ANSWER S.A.E.
Continual problems with belt turnover are likely to be caused by? - ANSWER Improper installation
technique
The scale of a working drawing can be determined by? - ANSWER The scale will be indicated on the
drawing
A _______ is a direct or indirect connection which may permit waste sewage or other non-potable water
to flow into a potable water source or supply? - ANSWER Cross connection
Traps are installed to prevent ________ from entering the structure? - ANSWER sewer gas, offensive
odors, vermin, all of the above.
The main purpose of lubrication is usually to? - ANSWER Reduce friction and wear.
When installing a p-trap, the vertical distance from the fixture to the ________ may not exceed 24". -
ANSWER Trap outlet
A gate valve would be used in an application where you need to control the flow of a fluid. - ANSWER
False, Globe valve to control.
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