Practice Test Five Flashcards
Three wires to masthead,2 wires to main panel; what is voltage :
120 volts
Picture a panel with 8 fuses. Four have black wires, 4 have white wires.pick the most accurate statement. A.fused neutrals B.240 volt fuses C.never a problem D.always a problem
A. Fused neutrals
The best way to vent and insulate a cathedral ceiling:
Leave gap above insulation
Which is the most rigid floor joist:
2x12
Common temperature rise with an old furnace :
70-100 degrees
Where roof dormer come together,siding should be ___” above shingles:
1-2” above shingles
Shingles are 4 years old,cupping of tabs, with no loss of granules. Cause is:
Defective shingles
Vapor barrier should be:
To the warm in winter side
Water heaters must have a
Temperature/pressure relief valve
The relief valve for a water heater must be installed:
With stem directly in tank (top 6”)
Wall cracks should be investigated to determine if structural rot,structural cracking,foundation settlement or pulled fastenings have occurred if crack is wider than:
1/4”
Plaster cracks over a chimney breast are usually caused by:
Settlement of the chimney
When plaster cracks appear over gypsum lath either 2 or 4 feet apart l, this is normally ..
Not serious
What is The possible result of water ponding on a roof:
Reduced life expectancy
The most obvious clue to a plumbing venting problem is :
Gurgling
What is the minimum extension above the roof line of a vent pipe to prevent frost closure:
6” above snow line
What size copper wire is required for 40,30,20,15 am breakers
8,10,12,14
Sub-panels require neutrals and grounds to be separated and isolated. What is another term for this:
Floating neutral
Where should collar ties be attached to the rafter
Nearer the middle
No trap in basement drain.you should tell the client:
Advise to get repaired
Which roof covering has the greatest life expectancy
Slate
Where would you not typically find condensation:
Interior bedroom
Basement leaks often occur because: A.missing gutter downspout extensions B.poor grading C.lack of control of roof and surface water D. All above
D.All the above
During heat pump operation,supplemental heat may be provided by:
Electric heat strips
When inspecting a heat pump or air conditioner,you find The inside coils condensation drain is connected directly to,or is inside of a sanitary sewer line
This is a health and safety concern and it needs to be corrected
A hole drilled through a joist for plumbing or electrical should not be located at/in the
Center
Rot/mildew/fun gas can begin in moisture levels of:
20%
Am engineered floor joist requires squash blocks:
As required by manufacturer
FRT plywood failure is due to:
Inadequate ventilation,accompanied by high heat and humidity
Which of the following statements is true regarding a hillside house with a foundation drain systems
The foundation drains systems collect water passing laterally through the slope.
