General Maintenance/ Boma Questions and Answers 100% Pass

General Maintenance/ Boma Questions and Answers 100% Pass When Starting a centrifugal pump That is part of a manifold with no check valves You should open the suction valve, start the pump and open the discharge valve slowly Curb cock A Valve insert it in a water line between the corporation stop and the water meter is generally called To check sheave wear Measure each groove angle Variable pitch sheaves may be used in some cases to provide which of the following types of speech changes Small Absolute pressure is Gauge Pressure plus 14.7 psi Which of the following best describes the basic types of sprinkler systems in a building Standard wet type system, Standard dry type system, deluge system ( all of the above) Power equals Force times distance divided by time Torches should be inspected for leakage at the Tip, valves, hose connections all of the above Smoke detection is usually accomplish by using either photo electric scanning, ionization chambers or smoke deflection devices? True If a coupling is not properly aligned It will almost certainly fail more quickly than his should & it could wear out equipment bearings A&C To protect a pump and motor against slight misalignment, they are often connected by a Flexible coupling The coding on a metallic electrode Stabilizes the arc and controls oxidation When severing a length of 2 inch pipe it is preferable to use A pipe cutter What is the main purpose of the emergency electrical power system Run equipment essential to human life for safety Baffles in a greased interceptor reduce____________ within interceptor Turbulence Parallel alignment is Where the centerline of the two shafts are parallel Usually if the motor in the system feels hot and you think this is overloading, you should not open the flow valve further because Increase flow will usually increase horse power requirements Which of the following alarms will start a diesel fire pump Waterflow alarm What term best describes water use for both drinking and cooking Potable Gate valves Have less pressure dropped than most other kinds of valves, Are available to quick opening models A&B Critical points of a grease interceptor or elevations of the__________ and _________ in to the water Inlet: outlet One of the most positive means of preventing back siphonage is the proper use of an Air gap One cubic foot of water is how many gallons? 7.48 A well used to fill a corner, as in a lap joint or a T joint, is called Fillet weld Grease are classified as their mobility and oil content by the S.A.E Continual problems with Belt turnover are likely to be caused by Improper installation technique The scale of a working drawing can be determined by This scale will be indicated on the drawings A _________ is a direct or in direct connection Which may permit waste sewage or other non- potable water to flow into a potable water source or supply Cross connection Traps are installed to prevent_________ from entering the structure Sewer gas, offensive odors, vermin (all of the above) The main purpose of lubrication usually is to Reduce friction and wear When installing a P-trap, the vertical distance from the fixture to the__________ may not exceed 24" Trap outlet A gate valve would be Used in a application where you