EPA 608 (CORE) Exam Questions And
ANSWERS
When ,moisture ,exists ,in ,an ,operating ,system, ,what ,is ,most ,likely ,to ,occur? ,- ,(correct ,answer) ,-
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
Acid ,will ,form. kr kr
What ,factor(s) ,affects ,the ,speed ,of ,evacuation? ,- ,(correct ,answer) ,-1) ,The ,size ,of ,the ,equipment
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,being ,evacuated.
kr kr
2)The ,ambient ,temperature. kr kr
3) ,The ,amount ,of ,moisture ,in ,the ,system
kr kr kr kr kr kr kr
A ,system ,is ,considered ,dehydrated ,when? ,- ,(correct ,answer) ,-The ,vacuum ,indicator ,shows ,you
kr kr kr kr kr kr kr kr kr kr kr kr kr
,have ,reached ,& ,held ,the ,required ,finished ,vacuum.
kr kr kr kr kr kr kr kr
The ,over-evacuation ,of ,a ,system: ,- ,(correct ,answer) ,-Does ,not ,occur.
kr kr kr kr kr kr kr kr kr kr
The ,size ,(capacity) ,of ,the ,vacuum ,pump ,& ,the ,size ,of ,the ,suction ,line ,used ,will ,determine
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,what? ,- ,(correct ,answer) ,-The ,length ,of ,dehydration ,time.
kr kr kr kr kr kr kr kr kr
A ,system ,is ,dehydrated ,to ,do ,what? ,- ,(correct ,answer) ,-Remove ,water ,& ,water ,vapor.
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
To ,obtain ,an ,accurate ,vacuum ,reading ,during ,system ,evacuation, ,the ,system ,vacuum ,gauge
kr kr kr kr kr kr kr kr kr kr kr kr
,should ,be ,located: ,- ,(correct ,answer) ,-As ,far ,from ,the ,vacuum ,pump ,as ,possible.
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
To ,scrap ,a ,disposable ,cylinder, ,the ,internal ,cylinder ,pressure ,should ,be ,reduced ,to ,at ,least
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,what? ,- ,(correct ,answer) ,-0 ,psig
kr kr kr kr kr kr
Never ,use ,an ,open ,flame ,to ,heat ,a ,refrigerant ,tank ,because? ,- ,(correct ,answer) ,-1) ,It ,can ,result
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,in ,venting ,refrigerant ,to ,the ,atmosphere.
kr kr kr kr kr kr
2)The ,tank ,may ,explode, ,causing ,serious ,injury ,to ,people ,nearby.
kr kr kr kr kr kr kr kr kr
ANSWERS
When ,moisture ,exists ,in ,an ,operating ,system, ,what ,is ,most ,likely ,to ,occur? ,- ,(correct ,answer) ,-
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
Acid ,will ,form. kr kr
What ,factor(s) ,affects ,the ,speed ,of ,evacuation? ,- ,(correct ,answer) ,-1) ,The ,size ,of ,the ,equipment
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,being ,evacuated.
kr kr
2)The ,ambient ,temperature. kr kr
3) ,The ,amount ,of ,moisture ,in ,the ,system
kr kr kr kr kr kr kr
A ,system ,is ,considered ,dehydrated ,when? ,- ,(correct ,answer) ,-The ,vacuum ,indicator ,shows ,you
kr kr kr kr kr kr kr kr kr kr kr kr kr
,have ,reached ,& ,held ,the ,required ,finished ,vacuum.
kr kr kr kr kr kr kr kr
The ,over-evacuation ,of ,a ,system: ,- ,(correct ,answer) ,-Does ,not ,occur.
kr kr kr kr kr kr kr kr kr kr
The ,size ,(capacity) ,of ,the ,vacuum ,pump ,& ,the ,size ,of ,the ,suction ,line ,used ,will ,determine
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,what? ,- ,(correct ,answer) ,-The ,length ,of ,dehydration ,time.
kr kr kr kr kr kr kr kr kr
A ,system ,is ,dehydrated ,to ,do ,what? ,- ,(correct ,answer) ,-Remove ,water ,& ,water ,vapor.
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
To ,obtain ,an ,accurate ,vacuum ,reading ,during ,system ,evacuation, ,the ,system ,vacuum ,gauge
kr kr kr kr kr kr kr kr kr kr kr kr
,should ,be ,located: ,- ,(correct ,answer) ,-As ,far ,from ,the ,vacuum ,pump ,as ,possible.
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
To ,scrap ,a ,disposable ,cylinder, ,the ,internal ,cylinder ,pressure ,should ,be ,reduced ,to ,at ,least
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,what? ,- ,(correct ,answer) ,-0 ,psig
kr kr kr kr kr kr
Never ,use ,an ,open ,flame ,to ,heat ,a ,refrigerant ,tank ,because? ,- ,(correct ,answer) ,-1) ,It ,can ,result
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
,in ,venting ,refrigerant ,to ,the ,atmosphere.
kr kr kr kr kr kr
2)The ,tank ,may ,explode, ,causing ,serious ,injury ,to ,people ,nearby.
kr kr kr kr kr kr kr kr kr
