Miscellaneous Flashcards
A single wall gas flue 2” from wood would be:
A safety hazard
A post-tension monolithic slab on grade foundation should not have :
Exposed cable ends
Each plumbing vent pipe or stack shall extend through it’s flashing and shall terminate vertically not less than:
6 inches above the roof line
Double tapping a circuit breaker is allowed when:
Breaker is designed for double tapping
Grounding rods must be driven into the ground at least :
8 feet
A plug fuse rated at 30 Amps is color coded:
Green,not all color coded any longer
A hydronic or forced (hot water) boiler system is:
Closed to the atmosphere and under pressure
In a hydronic boiler system, the normal operating pressure is ?
12-15 psi
The ‘Hartford loop’ In a system:
Precludes siphon action if the unit develops a leak
The combustion chamber In a gun style burner should be observed for
- Condition of the firebrick
- condition of the metal shields
- burn through or warping at the rear of the unit.
In most heat pumps, the “auxiliary heat”
- augments the normal operation of the unit in extremely cold weather
- is often called supplemental heat
- is sometimes called emergency heat
In a typical heat pump operating in heat mode ,the temperature differential at the heat exchanger (supply/return air) should be about:
25-30F
Te discharge pipe extending from a water heater pressure relief valve:
- must be the same diameter as the valve
- must discharge within 6” of the floor
- must be galvanized,copper,Or CPVC
Shower pan leaks are:
All shower pans should be checked and findings reported
The interior plumbing distribution pipes should be at least:
1/2”
When you find the insulation on incoming electrical services cables frayed or chewed,your comments should be:
Call the electric company or licensed electrician
Wall cracks should be investigated to determine if structural rot,structural cracking, foundation settlement or pulled fastenings have occurred if the crack is wider than:
1/4”
Plaster cracks over the chimney breast are usually caused by:
Settlement of the chimney
When plaster cracks appear over gypsum lath either 2 or 4 feet apart,this is normally:
Not serious
Defects most likely found in drywall can normally be associated with:
- moisture
- too few nails
- improper framing or use of damp wood
- poor insulation
The three purposes of a window are:
Light , ventilation and exit
When installing insulation In rafters,the minimum gap between the sheathing And insulation is :
1”
If wood siding is cracking,bulging or sagging, you should suspect:
Structural deficiencies in the framing.
Decks should be checked for :
- Adequate support
- Means of attachment to house
- condition of floor planking
- protective railing
