MISC Facts

Question 1

Stairway should slope about 34 degrees

Question 2

Do not insulate around recessed can lighting

Answer 2

True

Question 3

Flow down - the general contractor must flow down the provisions in his contract with the owner to his subcontractors

Question 4

To lift a 50 ton load use 1” diameter chain or wire rope sling

Question 5

OSHA prefers larger projects to have an evacuation plan

Question 6

The minimum diameter bolt to connect wood beams is 3/8”

Question 7

the first thing that you see when you look down into a floor drain is standing water

Question 8

The minimum size of a kitchen sink drain is 1 1/2”

Question 9

There are three legs for a three phase sub panel

Question 10

A neutral wire should never be connected to a ground wire

Question 11

The minimum size breaker for an electric hot water heater - should be a minimum of 125% larger than the circuit

Question 12

Electrical wire used outside should be rated underground service entrance (USE) or underground feeder (UF)

Question 13

Use double wall vent pipe for gas hot water heater

Question 14

Grounds made of copper or steel last longer if come in contact with the ground

Question 15

protected areas of closets more than 24 sqft require a sprinkler

Question 16

an OHM is a unit of electrical resistance

Question 17

black steen is the most common type of gas pipe

Question 18

36” clearance needed in front of electrical panel

Answer 18

m

Question 19

Optimal difference in temperature from inside to outside = 18 degrees

Question 20

Minimum spacing for sewer drain line hangers is for chlorinated polyvinyl chloride (CPVC)

Question 21

The vent pipe does not hold liquid

Question 22

A plumbing cross connection exists when no potable water source is allowed to mix with a potable water

Question 23

Distance from GFI receptacle to bathtub - 6’

Question 24

Wood rafters must bear 1 1/2” on wood

Question 25

Spacing of rebar in 6’-8” retaining wall

Question 26

Sillcock vacuum breaker prevents back flow into pipe

Question 27

Slate or stone walkway porous base

Question 28

Cranes on commercial construction projects within 3 miles of an airport must submit a request for approval 45 days before the project begins

Question 29

Underground black steel pipe not used as ground rod

Question 30

A sway bar is used to restrain the movement of pipe resulting from thermal expansion

Question 31

The uplift force determines how a truss should be attached to a top plate

Question 32

Equipment must be stored 20’ from an intersection

Question 33

Maximum spacing of fire extinguishers is 75’

Question 34

Temperature prior to applying adhesive - 65 degrees

Question 35

House wrap has no insulation value

Question 36

Silt fence prevents 0% of runoff

Question 37

How often to replenish first aid kits - before each job and at least weekly

Question 38

Dampen parged wall to cure the parging

Question 39

What trade is most dependent on installation of metal studs - electrician

Question 40

What holds unfazed batts in place in a wall - friction

Question 41

The compressive strength of concrete should be at least 200 psi when using epoxy adhesive to install anchor bolts

Question 42

Minimum thickness of reinforced foundation wall is 7-1/2” (ACI 318 version 14)