Practice Test Five Flashcards

0
Q

Three wires to masthead,2 wires to main panel; what is voltage :

A

120 volts

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1
Q
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

A. Fused neutrals

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2
Q

The best way to vent and insulate a cathedral ceiling:

A

Leave gap above insulation

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3
Q

Which is the most rigid floor joist:

A

2x12

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4
Q

Common temperature rise with an old furnace :

A

70-100 degrees

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5
Q

Where roof dormer come together,siding should be ___” above shingles:

A

1-2” above shingles

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6
Q

Shingles are 4 years old,cupping of tabs, with no loss of granules. Cause is:

A

Defective shingles

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7
Q

Vapor barrier should be:

A

To the warm in winter side

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8
Q

Water heaters must have a

A

Temperature/pressure relief valve

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9
Q

The relief valve for a water heater must be installed:

A

With stem directly in tank (top 6”)

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10
Q

Wall cracks should be investigated to determine if structural rot,structural cracking,foundation settlement or pulled fastenings have occurred if crack is wider than:

A

1/4”

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11
Q

Plaster cracks over a chimney breast are usually caused by:

A

Settlement of the chimney

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12
Q

When plaster cracks appear over gypsum lath either 2 or 4 feet apart l, this is normally ..

A

Not serious

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13
Q

What is The possible result of water ponding on a roof:

A

Reduced life expectancy

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14
Q

The most obvious clue to a plumbing venting problem is :

A

Gurgling

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15
Q

What is the minimum extension above the roof line of a vent pipe to prevent frost closure:

A

6” above snow line

16
Q

What size copper wire is required for 40,30,20,15 am breakers

A

8,10,12,14

17
Q

Sub-panels require neutrals and grounds to be separated and isolated. What is another term for this:

A

Floating neutral

18
Q

Where should collar ties be attached to the rafter

A

Nearer the middle

19
Q

No trap in basement drain.you should tell the client:

A

Advise to get repaired

20
Q

Which roof covering has the greatest life expectancy

A

Slate

21
Q

Where would you not typically find condensation:

A

Interior bedroom

22
Q
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
A

D.All the above

23
Q

During heat pump operation,supplemental heat may be provided by:

A

Electric heat strips

24
Q

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

A

This is a health and safety concern and it needs to be corrected

25
Q

A hole drilled through a joist for plumbing or electrical should not be located at/in the

A

Center

26
Q

Rot/mildew/fun gas can begin in moisture levels of:

A

20%

27
Q

Am engineered floor joist requires squash blocks:

A

As required by manufacturer

28
Q

FRT plywood failure is due to:

A

Inadequate ventilation,accompanied by high heat and humidity

29
Q

Which of the following statements is true regarding a hillside house with a foundation drain systems

A

The foundation drains systems collect water passing laterally through the slope.