Safety 1
This is the most common shock-related injury.
Burns
The most widely used conductors for electrical systems are rated at this voltage.
600 V
What type of aggregate is mortar made with?
Sand
What is a pinch point?
Anywhere it is possible for a part of the body to be caught between moving parts or between moving parts and stationary parts
What symbol denotes an isolated ground receptacle?
Orange triangle
Attendant
This is the innermost part of a medium voltage cable.
The conductor
This type of hollow wall anchor has the lowest duty rating.
Plastic
What is the first thing that should be done as soon as the cables have been pulled?
Secure them
Which occupancy classification in the IBC contains prisons and nursing homes?
Institutional
A worker who is authorized by the entry supervisor to enter a permit space is called ___.
An authorized entrant
Name a type of wire that has thermoplastic insulation.
THHN/THWN
What is the most important step when fastening something to a brick facade wall?
Anchoring the item to the main structure and not the brick facade.
When a raceway is underground, it is considered this type of location.
Wet location
What are the three sides of the fire triangle?
Detection, suppression, containment
What is the key safety difference between an aerial lift and a scissor lift?
OSHA requires the use of harnesses and lanyards on aerial lifts at all times, but not on scissor lifts.
How is a grounding conductor identified?
Green or bare
What is the force that holds mechanical masonry anchors in concrete?
Friction
Larger cable pullers typically have a continuous pulling force rating of up to ____ pounds at peak.
10,000
What are the five primary methods of terminating a wiring device?
1. Back wire
2. Side wire
3. Speed wire
4. Pre-terminated leadsName two factors that determine the severity of an electric shock.
1. The amount of current flowing through the body
2. The current's path through the body
3. The length of time the body spends in the circuit
4. The current's frequency
Name one difference between armored cable (AC) and metal clad cable (MC)?
MC cable has a dedicated ground wire, where AC depends on the metal sheath and inner bonding strip
MC is more versatile and can be used outdoors when rated appropriately
AC is less flexible than MC
What are the two varieties of post-installed concrete anchor?
Male and female
What are four installation parameters should be considered when installing cables into conduit or cable tray?
1. Clearance
2. Jamming
3. Sidewall pressure
4. Max pulling tension
A listed through penetration that identifies a specific manufacturer's caulk can be installed using a different brand of caulk as long as what requirement is met?
The complete through penetration must be tested and listed with the other manufacturer's caulk