Maintenance Worker Study Material

Maintenance Worker Study Material




How=much=does=water=weigh?=-=ans--8.34=Lbs=per=gallon

The=force=of=water=is=measured=using=?=-=ans--PSI=Pounds=per=square=inch

For=every=foot=in=elevation=the=waters=force=is=increased=by=how=much?=-=ans--
2.3=Lbs=per=square=inch

What=happens=when=a=water=valve=is=shut=off=suddenly?=-=ans--
The=force=of=the=water=greatly=increases=at=that=location;=at=the=valve.

What=is=water=hammer?=-=ans--
The=increase=pressure=then=rebounds=back=through=the=pipe.

How=do=you=avoid=water=hammer?=-=ans--
To=shut=the=valve=slowly,=so=the=water=momentum=is=reduced=before=it=comes=to=a=st
op

What=type=of=valve=is=used=to=to=reduce=water=water=hammer=?=-=ans--Blow-
off=valve=or=pressure=relief=valve

What=type=of=bacteria=is=always=looked=for=in=a=water=test?=-=ans--Coliform

Anytime=that=potable=and=non-potable=water=systems=are=connected=it=is=called=what?
=-=ans--Cross-Connection


The=main=line=is=full=water=and=under=pressure=is=called=what?=-=ans--
Wet=tap=or=hot=tap.

When=spreading=asphalt=what=is=used=for=larger=areas?=-=ans--
Asphalt=spreaders.=8=foot.=Wide=tractor=type=vehicles.

When=spreading=asphalt=what=is=used=for=smaller=areas?=-=ans--
A=shovel=and=a=lute=can=be=used.

A=lute=will=have=a=long=handle=how=long?=-=ans--5=to=6=feet=long.