CR-21 Landscapes and Irrigation AZROC Test
Prep Exam Questions And Answers Verified 100%
Correct
What effects does higher pressure have on wire size?
a) it has no effect
b) increases amps needed
c) increases voltage needed
d) decreases amps needed - ANSWER -increases amps needed
Which finish is best used when subject to regular dampness?
a) keeness cement finish
b) Portland cement plaster finish
c) putty finish
d) sand finish - ANSWER -Portland cement plaster finish
Fertilizer consists of______
a) nitrogen, phosphoric acid and potassium
b) nitrogen, oxygen and carbon
c) nitrogen, phosphoric acid and potash
d) bone meal, ammonia and organic filler - ANSWER -Nitrogen, phosphoric acid
and potash
On a long run over 100 feet from a low voltage transformer, what size wire would
be best suitable?
a) 18-2
b) 10-2
c) 12-2
d) 16-2 - ANSWER -12-2
what is fixed reference point called when doing a survey?
a) landmark
,b) reference position
c) rod position
d) benchmark - ANSWER -benchmark
You have 2 BCY of sand, after compaction you will have?
a) 3.0 CCY
b) 1.96 CCY
c) 1.75 CCY
d) 2.24 CCY - ANSWER -1.96
CCY of sand is 0.95
2*0.95 = 1.96
What technique is used for planting trees but is not normally used when planting
shrubs?
a) watering
b) staking
c) mulching
d) soil conditioning - ANSWER -staking
What is the preferred slope for a brick paver walkway in a well-drained area?
a) 1/8 inch to 1/4 inch
b) 3/8 to 1/2 inch
c) 1/4 to 3/8 inch
d) 1/2 to 3/4 inch - ANSWER -1/8 to 1/4 inch
What is the grade (Slope)? rise = 20 and run = 100
a) 10%
b) 25%
c) 20%
d) 30% - ANSWER -20/100 = 0.2
0.2 * 100 = 20%
According to Arizona registrar of contractor's regulations, an R-21 license could
be used for which of the following:
a) building a gazebo
,b) building a decorative trellis
c) building a perimeter fence
d) building a patio cover - ANSWER -Building a decorative trellis
Trenches that are over excavated and require backfilling below the level of the
pipe shall be backfilled in layers not exceeding:
a) 6 inches
b) 3 inches
c) 12 icnhes
d) 18 inches - ANSWER -6 inches
What is the purpose of humus?
a) to increase water retention
b) to aid in compaction
c) to replace sulfur
d) to decrease water retention - ANSWER -to increase water retention
When fertilizing the southwestern garden, among chemical fertilizers, the __
analysis is used most often.
a) 5-10-10
b) 20-10-10
c) 4-10-10
d) 4-12-4 - ANSWER -4-12-4
What would you add to soil to increase its' pH value?
a) lime
b) sulphate
c) chelating agent
d) wetting agent - ANSWER -Lime
What is the minimum grade needed for proper drainage?
a) less than 1%
b) 1% or greater
c) less than 3%
d) 3% or greater - ANSWER -3% or greater
, Many shrubs are planted for their flowering qualities and must be pruned at the
proper time to realize their maximum potential for flowering. Spring flowering
shrubs should be pruned in____
a) fall
b) early spring
c) late spring
d) later summer - ANSWER -early spring
What causes a pop-up riser to rise?
a) timer
b) electric current
c) suction
d) water pressure - ANSWER -Water pressure
How long do you need to wait before setting the second course on the base?
a) 2 hours
b) 1 hour
c) no waiting
d) 1 day - ANSWER -1 hour
Refer to the illustration, which of the following shows a 180 degree arc?
a) D
b) B
c) A
d) C - ANSWER -B
A concrete slab should be bull floated as soon as possible after:
a) placing
b) screeding
c) floating
d) edging - ANSWER -screeding
What is the advantage of using veneer plaster over conventional plaster?
Prep Exam Questions And Answers Verified 100%
Correct
What effects does higher pressure have on wire size?
a) it has no effect
b) increases amps needed
c) increases voltage needed
d) decreases amps needed - ANSWER -increases amps needed
Which finish is best used when subject to regular dampness?
a) keeness cement finish
b) Portland cement plaster finish
c) putty finish
d) sand finish - ANSWER -Portland cement plaster finish
Fertilizer consists of______
a) nitrogen, phosphoric acid and potassium
b) nitrogen, oxygen and carbon
c) nitrogen, phosphoric acid and potash
d) bone meal, ammonia and organic filler - ANSWER -Nitrogen, phosphoric acid
and potash
On a long run over 100 feet from a low voltage transformer, what size wire would
be best suitable?
a) 18-2
b) 10-2
c) 12-2
d) 16-2 - ANSWER -12-2
what is fixed reference point called when doing a survey?
a) landmark
,b) reference position
c) rod position
d) benchmark - ANSWER -benchmark
You have 2 BCY of sand, after compaction you will have?
a) 3.0 CCY
b) 1.96 CCY
c) 1.75 CCY
d) 2.24 CCY - ANSWER -1.96
CCY of sand is 0.95
2*0.95 = 1.96
What technique is used for planting trees but is not normally used when planting
shrubs?
a) watering
b) staking
c) mulching
d) soil conditioning - ANSWER -staking
What is the preferred slope for a brick paver walkway in a well-drained area?
a) 1/8 inch to 1/4 inch
b) 3/8 to 1/2 inch
c) 1/4 to 3/8 inch
d) 1/2 to 3/4 inch - ANSWER -1/8 to 1/4 inch
What is the grade (Slope)? rise = 20 and run = 100
a) 10%
b) 25%
c) 20%
d) 30% - ANSWER -20/100 = 0.2
0.2 * 100 = 20%
According to Arizona registrar of contractor's regulations, an R-21 license could
be used for which of the following:
a) building a gazebo
,b) building a decorative trellis
c) building a perimeter fence
d) building a patio cover - ANSWER -Building a decorative trellis
Trenches that are over excavated and require backfilling below the level of the
pipe shall be backfilled in layers not exceeding:
a) 6 inches
b) 3 inches
c) 12 icnhes
d) 18 inches - ANSWER -6 inches
What is the purpose of humus?
a) to increase water retention
b) to aid in compaction
c) to replace sulfur
d) to decrease water retention - ANSWER -to increase water retention
When fertilizing the southwestern garden, among chemical fertilizers, the __
analysis is used most often.
a) 5-10-10
b) 20-10-10
c) 4-10-10
d) 4-12-4 - ANSWER -4-12-4
What would you add to soil to increase its' pH value?
a) lime
b) sulphate
c) chelating agent
d) wetting agent - ANSWER -Lime
What is the minimum grade needed for proper drainage?
a) less than 1%
b) 1% or greater
c) less than 3%
d) 3% or greater - ANSWER -3% or greater
, Many shrubs are planted for their flowering qualities and must be pruned at the
proper time to realize their maximum potential for flowering. Spring flowering
shrubs should be pruned in____
a) fall
b) early spring
c) late spring
d) later summer - ANSWER -early spring
What causes a pop-up riser to rise?
a) timer
b) electric current
c) suction
d) water pressure - ANSWER -Water pressure
How long do you need to wait before setting the second course on the base?
a) 2 hours
b) 1 hour
c) no waiting
d) 1 day - ANSWER -1 hour
Refer to the illustration, which of the following shows a 180 degree arc?
a) D
b) B
c) A
d) C - ANSWER -B
A concrete slab should be bull floated as soon as possible after:
a) placing
b) screeding
c) floating
d) edging - ANSWER -screeding
What is the advantage of using veneer plaster over conventional plaster?
