QUESTIONS
10%`-`ans-
✔✔In`high`pressure`electric`generating`plants`in`large`buildings,`heating`the`feed`water`fr
om`70f`to`180f`with`exhaust`steam`usually`will`decrease`the`fuel`consumption`by...
Steam`pipe`in`the`room`before`the`pneumatic`steam`valve`-`ans-
✔✔The`direct`room`radiator`with`a`pneumatically`controlled`steam`heating`system`is`cold,
`while`the`adjoining`rooms`are`heated`adequately.`The`first`thing`you`would`check`in`the`r
oom`is...
Inches`of`vacuum`-`ans-
✔✔The`usual`vacuum`gauge`on`a`steam`heating`system`reads`in...
Oil`pressure`-`ans-
✔✔In`a`mechanical`pressure`type`burner`using`no`6`oil`heated`to`230`f`by`steam,`the`oil`is
`atomized`by...
Shut`down`the`burner`when`primary`air`failure`occurs`-`ans-
✔✔A`vaporstat`with`separate`motor`driven`oil`pump`used`on`a`fully`automatic`heavy`oil`Br
unéi`get`rotary`cup`installation`is`generally`used`to...
Gallons`Pumped`-`ans-
✔✔In`estimating`the`amount`of`work`being`done`by`a`steam`driven`water`pump,`the`one`o
f`the`following`items`which`is`usually`the`most`important`in`the`calculation`of`pump`horse`p
ower`is`the`...
A`rate`of`flow`-`ans-✔✔The`term`fixture`unit`usually`refers`to`...
The`water`was`too`hot`-`ans-
✔✔When`pumping`water`from`a`return`tank,`equipped`with`an`automatic`make`up`valve`l
ocated`below`the`pump,`the`most`probable`cause`of`periodic`pump`failures`to`deliver`the`
water`would`be...
Soda`acid`-`ans-
✔✔Suppose`a`small`oil`fire`has`broken`out`in`the`boiler`room`in`your`building,`under`these
`circumstances,`the`extinguisher`least`suitable`for`use`is...
, A`large`induction`motor`operating`at`60%normal`rated`capacity`-`ans-
✔✔Of`the`following,`a`low`power`factor`would`most`likely`result`from...
Adjust`the`field`of`the`incoming`unit`-`ans-
✔✔Before`putting`two`dc`engine`generators`on`the`line`in`parallel,`it`is`usually`necessary`t
o`...
Synchronous`motor`-`ans-
✔✔Of`the`following,`the`best`type`of`AC`motor`to`use`for`direct`connection`to`a`timing`devi
ce`which`must`be`very`accurate`is`a...
200`BTU`per`minute`-`ans-
✔✔One`ton`of`refrigeration`may`be`expressed`most`accurately`as...
Alum`is`added`to`water`to`form`a`flee`before`the`water`reaches`the`filters`-`ans-
✔✔Which`of`the`following`statements`is`correct`with`respect`to`filtration`plants`of`swimmin
g`pools...
Limit`switch`(only`active`when`is`running)`-`ans-
✔✔An`electric`elevator`car`stalls`on`the`ground`floor`of`a`school`building.`Of`the`following`
the`item`you`would`least`likely`to`check`in`your`inspection`is`the`B)`Floor`door`switch`C)`Li
mit`switch`D)`current`to`elevator`motor
A`submerged`inlet`condition`may`be`created`resulting`in`back`siphonage`-`ans-
✔✔An`examination`of`the`water`supply`of`the`sinks`of`demonstration`tables`in`science`roo
ms`reveals`the`use`of`rubber`hose`attachments`to`sink`taps`extending`below`the`sink`rim.`
The`most`criticism`of`this`practice`is`that`...
Automatic`resetting`of`electric`clocks`throughout`the`school`-`ans-
✔✔The`modern`multiple`circuit`program`instrument`which`automatically`controls`bell`sign
als`in`a`school`usually`includes...
Electric`current`-`ans-✔✔A`solenoid`valve`is`actuated`by...
Close`the`automatic`damper`after`the`burner`goes`off`and`the`burner`cycle`is`completed`-
`ans-✔✔A`sequential`draft`control`on`a`rotary`cup`oil`fired`boiler`should`operate`to`...
Oxygen`-`ans-
✔✔The`one`component`of`flue`gas`that`indicates,`when`present,`that`more`excess`air`is`b
eing`supplied`than`is`being`used`is...
Allows`non`condensable`gases`to`escape`-`ans-
✔✔Advantage`of`a`float`thermostatic`steam`trap`over`a`float`type`type`steam`trap
Inclined`manometer`-`ans-✔✔Instrument`to`use`to`measure`over`the`fire`draft`is...