A two-pipe system should be installed with the suction at the oil ...

[luvbio]

A two-pipe system should be installed with the suction at the oil pump greater than what measure?
 
  A) 6 in Hg B) 16 in Hg C) 12 in Hg D) 17 in Hg

Question 2

What are the two main types of duct-cleaning equipment being used?
 
  A) Ultraviolet units and ultrasonic particle precipitators
  B) Units that use high-velocity air and units that use sprayed cleaning compounds
  C) Units that use brushes and vacuum and units that use ultrasonic particle precipitation
  D) Large truck-mounted units and small portable units

[meltdown117]

Answer to Question 1

A

Answer to Question 2

D

[luvbio]

TYSM

[momolu]

Excellent