Plumbing Inspection Section#1 Supply Plumbing Test # 1

• Question 1

  1 out of 1 points

  	One difference between a double check valve assembly and a reduced pressure principle device is
  	Selected Answer:   only be reduced pressure principle device has a relief valve Answers: the double check valve is typically used on a lawn sprinkler system   only be reduced pressure principle device has a relief valve in the backflow condition only one unit closes the primary check valve the reduced pressure principle device protects against backflow but not back pressure the reduced pressure principle device can only be used with hot water supply lines and the double check valve can be used with hot or cold

• Question 2

  1 out of 1 points

  	Where is a foot valve located in a supply plumbing system fed from a well?
  	Selected Answer:   at the bottom of the intake Answers: on the discharge line downstream of the pump beside the pressure tank   at the bottom of the intake where the casing meets bedrock

• Question 3

  1 out of 1 points

  	A "cross connection" occurs when
  	Selected Answer:   waste water contaminates clean water Answers:   waste water contaminates clean water hot water and cold water connections are reversed hot and cold water are mixed for temperature balancing two different types of supply pipes are joined together sanitary and storm sewer waste lines come together

• Question 4

  1 out of 1 points

  	The cross sectional area of a 3/4 inch pipe is approximately _____ percent larger than a 1/2 inch pipe.
  	Selected Answer:   225 Answers: 50 75 100 150   225

• Question 5

  0 out of 1 points

  	Which component of a supply plumbing system in a house with a well keeps the water pressure relatively even ?
  	Selected Answer:   pressure regulator Answers: bladder pressure regulator   pressure tank pump pressure switch

• Question 6

  0 out of 1 points

  	A note would have to be made in a report if the ____________ was not inspected.
  	Selected Answer:   swimming pool Answers: swimming pool septic tank well fire sprinkler piping   pot filler faucet

• Question 7

  1 out of 1 points

  	To avoid the risk of contamination, a well should be no closer than _____ feet to a septic tank.
  	Selected Answer:   50 Answers: 20 25 30 40   50

• Question 8

  1 out of 1 points

  	Which type of piping is typically joined with threaded connections?
  	Selected Answer:   galvanized steel Answers: PVC CPVC copper lead   galvanized steel

• Question 9

  1 out of 1 points

  	The two primary elements in solder used to join copper piping components are antimony and
  	Selected Answer:   tin Answers:   tin lead flux brass sulfur

• Question 10

  0 out of 1 points

  	Which of the following statements about discussing the characteristics of well water with a client at an inspection is true? It
  	Selected Answer:   is best left to a plumber Answers: is a critical part of the inspection should be done early in the inspection   should be approached cautiously can only be done at certain times of the year is best left to a plumber

• Question 11

  1 out of 1 points

  	In a 3-story house, the best place to test the functional flow of the supply water is
  	Selected Answer:   in the third floor bathroom with the tap and shower running Answers: at an outside hose bibb with the sprinkler system operating at the first fixture after the main water shutoff valve in the basement bathroom with the faucet, shower and toilet running in any room with the largest volume faucet running and a toilet flushed   in the third floor bathroom with the tap and shower running

• Question 12

  0 out of 1 points

  	What kind of pump is typically the most powerful?
  	Selected Answer:   2-line jet Answers: 1-line jet 2-line jet piston oil-less diaphragm   submersible

• Question 13

  0 out of 1 points

  	To meet the Standards, which of the following have to be inspected?
  	Selected Answer:   bidets Answers: new water softeners   waste disposal systems bidets solar water heating equipment old washing machine connections

• Question 14

  1 out of 1 points

  	One way to increase water pressure at a faucet is to
  	Selected Answer:   reduce the number of tees and elbows along the route Answers: install a pressure regulator add a pressure relief valve remove a low flow aerator change the water meter   reduce the number of tees and elbows along the route

• Question 15

  1 out of 1 points

  	All of the following statements about city water are true EXCEPT
  	Selected Answer:   most municipal water is tested once a day Answers: city water mains are usually 4 inches to 12 inches in diameter the same water that comes into a house supplies the fire hydrants almost all municipal water is treated in some way   most municipal water is tested once a day city water pressures are typically in the 40 to 80 psi range

• Question 16

  1 out of 1 points

  	A foundation irrigation system would most likely be found
  	Selected Answer:   in areas that have clay or expansive soils Answers: in a more expensive house covering the southern exposure of a house   in areas that have clay or expansive soils on a property with poor lot grading at a house with a previous history of basement flooding

• Question 17

  1 out of 1 points

  	If a well pump comes on every few seconds when a faucet is opened, the likelihood is that the pump
  	Selected Answer:   is short cycling Answers:   is short cycling is losing its prime will not last much longer has a damaged impeller is wired incorrectly

• Question 18

  1 out of 1 points

  	When static pressure in a house is above 80 psi
  	Selected Answer:   a pressure regulator should be installed Answers: pipe connections should be strengthened   a pressure regulator should be installed pressure losses due to friction are amplified appliances will perform poorly a high pressure water meter is necessary

• Question 19

  1 out of 1 points

  	Which of the following conditions is most likely to damage the supply plumbing system?
  	Selected Answer:   water hammer Answers:   water hammer valve chatter pipes groaning pipes rubbing on hangers water whistling

• Question 20

  1 out of 1 points

  	The most common water supply piping in residential construction is
  	Selected Answer:   copper type M Answers: 5/8 inch copper copper type A copper type L   copper type M copper type blue

• Question 21

  0 out of 1 points

  	If an inspector/licensed plumber were to make a specific repair recommendation, he/she
  	Selected Answer:   must only make the advice on readily accessible items Answers: might be accused of a conflict of interest could be reported to her local association is risking her reputation for being impartial   would still be consistent with the Standards must only make the advice on readily accessible items

• Question 22

  0 out of 1 points

  	Hot water recirculating systems can be problematic on a plumbing system because
  	Selected Answer:   even with a check valve, hot and cold water could still mix Answers:   the extra water velocity can prematurely wear out the pipes the extra piping can lead to lower pressure in the system there is more wear and tear on the water heater the recirculating pump adds additional pressure to the pipes even with a check valve, hot and cold water could still mix

• Question 23

  0 out of 1 points

  	During an inspection it would be reasonable to
  	Selected Answer:   fill a dry sump with water to test the pump Answers: block the water heater chimney flue to test a carbon monoxide detector tighten a loose connection on a vent support strap light a pilot on a water heater   remove an access panel to look for a plumbing stack cleanout fill a dry sump with water to test the pump

• Question 24

  0 out of 1 points

  	If the pressure at a first floor faucet is higher than one in the basement, it is likely because
  	Selected Answer:   the diameter of the pipe is larger going to the first floor faucet Answers: there is a flow restrictor on the basement faucet the length of the pipe is longer going to the first floor faucet the diameter of the pipe is larger going to the first floor faucet   there is a greater number of tees and elbows before the basement faucet the first floor faucet is used more than the basement faucet

• Question 25

  1 out of 1 points

  	By putting a thumb over the end of a running garden hose, we are effectively
  	Selected Answer:   lowering the pressure loss along the hose due to friction Answers: raising the pressure and the flow rate at the nozzle lowering the pressure and raising the flow rate at the nozzle   lowering the pressure loss along the hose due to friction raising the static pressure at the hose bibb lowering the static pressure at the hose bibb