PLUMBING LEVEL 3 EXAM WITH ACTUAL COMPLETE 60 REAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A +.

PLUMBING LEVEL 3 EXAM WITH ACTUAL COMPLETE 60 REAL
EXAM QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A +.




A cross-connection becomes dangerous when there is a _ - ANSWER
-backflow


If a leak is too small for escaping smoke to be visible, the leak may be
detected by _ - ANSWER -the odor of the smoke


Calcium and magnesium salts in water are the cause of _ - ANSWER -
hardness


Acid in the water can react with copper pipes to leave stains that are _
- ANSWER -green


The number of types of simple machines is _ - ANSWER -six


For calculating area, lengths and widths are expressed in _ - ANSWER
-multiples of 12


To determine the proper measurements for a floor, always refer to the
_ - ANSWER -scale on the construction drawings

, One cubic foot of water has a weight of _ - ANSWER -62.31 pounds


Increasing the temperature of water will _ - ANSWER -decrease its
density but increase its volume


An efficient water supply system should provide, under peak demand
conditions, adequate pressure to the _ - ANSWER -farthest point of
use


To decrease the amount of force needed to lift a load, you can _ -
ANSWER combine several pulleys


The wheel and axle is a modification of the _ - ANSWER -basic pulley
concept




The central vent in a building is the _ - ANSWER -vent stack


A sewage pump draws wastewater out of a sump by _ - ANSWER -
creating a partial vacuum


For ease of removal when performing maintenance, sewage pumps
should be connected to inlet and outlet piping with flanges or _ -
ANSWER -unions