J103A Revision 4

The absolute pressure scale is

• kPa

• Bar

• micron

• Pascal

The code of practice specifies a vacuum required is to?

• 500 microns

• 600 microns

• 65Pa

• 101.3kPa

250kPa is equal to

• .25bar

• 2.5bar

• 25bar

• 2500bar

The type of analogue gauge used in Refrigeration and Air Conditioning is the

• magnehelic tube

• anenometer tube

• bourden tube

• compound tube

Can a saturated vapour and a saturated liquid exist at the same pressure

• yes

• no

• wut?

• depends

The condition of the refrigerant in the discharge pipe is

• High Temp/pressure

  Superheated vapour

• Low Temp/pressure

  Subcooled liquid

• High Temp/pressure

  Saturated

  refrigerant

• High temp/pressure

  Superheated

  liquid

The condition of the refrigerant in the suction pipe is

• Low temp/pressure

  saturated vapour

• Low temp/pressure subcooled vapour

• Low temp/pressure

  superheated vapour

• Low temp/pressure

  subheated liquid

The condition of the refrigerant entering the metering device is

• Medium temperature high pressure vapour

• Cool temp

  high pressure

  Saturated vapour

• Warm temperature high pressure liquid

• High temp

  High pressure

  superheated vapour

Subcooled means the temperature of the refrigerant is:

• Below its saturated condition

• above its saturated condition

• At its saturated condition

• At its superheated condition

Superheated means the temperature of the refrigerant is:

• Below its saturated condition

• Above its saturated condition

• At its saturated condition

• At its subcooled condition