If unused mortar stiffens due to hydration of cement, what must you do? – correct answerDiscard the
mortar
What minimum time must you wait before caulking or grouting new tiles? – correct answer24-48 Hours
How long should you wait before installing tile on a shower pan? – correct answer24 Hours
Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greater
than 0.5 and less than 1.5 tons\/sq ft (tsf), are typical examples of: – correct answerType-B Soils
If 65 street lights are fed by a 2275 volt series circuit, what is the voltage across each light? – correct
answer35V
In a series circuit, the total voltage is divided equally.
For safety reasons, the maximum simple slope of an excavation, up to 20 ft deep, in Type-B soil is: –
correct answer1:1 (45\u00b0)
A Pittsburgh joint is used in: – correct answerHVAC ductwork
The drain for a pressure relief valve on a water heater should be extended to: – correct answerThe
outside of the building
What is the minimum slope toward the drain of a shower pan? – correct answer1\/4″ per foot (2%)
What is the diameter of #3 rebar? – correct answer3\/8″
If a vendor fails to provide an MSDS, you have the right to call: – correct answerCal\/OSHA or DOSH
When installing a door jamb, you need shims at: – correct answerBoth hinge and strike sides, three on
each side.
Which of the following is used to adhere vinyl floors?
A. Epoxy cement
B. Asphalt mastic
C. Latex primer
D. White glue – correct answerEpoxy cement
When do you need bracing for a drywall wall? – correct answerDiagonal bracing is needed every 25′ for
any drywall wall.
How should you clear the roots from a construction site? – correct answerClear roots to 12″ below
grade.
Dividing watts by amps gives you: – correct answerVolts
The most frequent on-the-job roofing accidents are: – correct answerFalls
Which of the following is NOT a type of wood block flooring?
A. Parquet
B. Wood Mosaic
C. Wood Tile
D. All of the above. – correct answerWood tile
Lightweight concrete is best used for:
A. Curb and Gutter
B. Second floor decking
C. First floor slab on grade
D. Footings – correct answerSecond floor decking
The tool used to carry grout needed to patch a small hole is a:
A. Hawk
B. Poling board
C. Spot board
D. Mason’s scutch – correct answerSpot Board
Which pipe is NOT appropriate for industrial wastes?
A. Cast iron
B. Schedule 40 ABS DWV
C. Extra strength vitrified clay
D. Copper – correct answerCopper
Where do you need a fire wall?
A. Between a living room and a bedroom
B. Between a bedroom and a bathroom
C. Between a kitchen and a bath
D. A separation wall between a dwelling and an attachment – correct answerA separation wall between
a dwelling and an attachment.
What is the minimum clearance between rough ground and untreated subfloor joists? – correct
answer18 inches
Who may remove asbestos? – correct answerContractor with Asbestos Certification on license.
Which of the following is NOT likely to be found in significant proportions in granular soil?
A. Gravel
B. Sand
C. Silt
D. Clay – correct answerClay
Stiles and rails are used on which of the following?
A. Furred walls
B. Roofs
C. Windows
D. Slabs – correct answerWindows.
A stile is the vertical edges of the window and the rails are the bottom and top.
What does a high slump test indicate? – correct answerToo much water.
Metal concrete forms should be?
A. Oiled
B. Watered
C. Placed against gravel
D. Discarded after each use – correct answerOiled<\/p>\n\n\n\n