RME 1B Flashcards
Where flexible cords are permitted to be permanently connected ______ shall be permitted to be omitted for such cords.
receptacles
Duty on wheelchair lift and stairway chair lift driving machine motors shall be rated as?
intermittent
Flexible metallic tubing smaller than ______ electrical trade size shall NOT be used.
12 mm
Parts of electrical equipment which in ordinary operation produce arcs, sparks flames or molten metal shall be enclosed or separated and isolated from all combustible material
True
The minimum size of wire used in electrical wiring is the former #14 American Wire Gauge (AWG) . Under the SI standard 9mettric units) in the PEC, what is the diameter of this wire?
2.0 mm2 (1.6mm)
The power supply to the park trailer shall be a feeder assembly consisting of not more than one listed -ampere or 50-ampere park trailer power supply cord with an integrally molded or securely attached cap, or a permanently installed feeder.
30
The electrical drawing of single family dwelling shall show the following, except?
computation of illumination
The keystone of professional conduct
integrity
Self excited generators supplying power to organs shall have a potential of NOT more than?
15 V
The length of the cord for range hoods is not less than _____ mm and not over _____ mm.
450, 900
Portable or transportable equipment having self-contained power supplies, such as battery-operated equipment, could potentially become a(n) _____ source.
ignition
A strut-type channel raceway cannot be installed in concealed location where subject to corros ve vapors if protected solely by enamel.
True
The _____ rating of a range receptacle shall be permitted to be based on a single range demands load as specified in Table 2.20.2.10 (Demands Loads for Households Electric Ranges and the like)
ampere
As a rule, no overcurrent device shall be connected in series with any conductor that is…
intentionally grounded
_____ is the farthest extent of standing water under the applicable conditions that determine the electrical datum plane for specified body of water.
Shoreline
Cables installed in ducts, plenums, and other spaces used for environmental air shall be?
type CATVP
Where multiple overcurrent devices are utilized, the total of all the device ratings shall not exceed the allowed value of a single overcurrent device.
True
A wye-delta starter for a single voltage three phase squirrel cage induction motor would require the connection of a certain number of wires would be needed?
6 wires
The insulated conductor of type TC (cable tray) cable shall be in sizes _____ through _____ copper
0.75mm2; 500mm2
Interlocked typed armored cable or corrugated sheath cables shall have a bending radius of not less than _____ times the external diameter of the metallic sheath
7
As a rule, no overcurrent device shall be connected in series with any conductor that is…
intentionally grounded
Dry type transformer rated over _____ kV shall be installed in a vault.
35
If the industrial control panel is intended as service equipment, it shall be _____ to identify it as being suitable for use as service equipment
marked
A raceway contains 45 current-carrying conductors, the ampacity of each conductor shall be reduced _____ percent
35
Flexible cords used in locations where there is a lot flying flint or fibers shall comply with the following EXCEPT one. Which one is this?
It shall be of type approved for extra hard usage
Legally required standby systems are typically installed to serve loads such as? (3)
- sewage disposal
- lighting systems
- refrigeration systems
The branch circuit conductors that supplying one or more units of data processing systems shall have an ampacity not less than ______ percent of the total connected load.
125
A factory assembly of one or more conductors, each individually insulated and enclosed in a metallic sheath of interlocking tape or a smooth or corrugated tube.
Type MC cable
Methods to reduce neutral-to-earth voltages in livestock facilities include supplying buildings or structures with 4-wire single-phase services, sizing 3-wire single-phase service and feeder conductors to. limit voltage drop to _____ percent, and connecting loads line-to-line.
2
Multimotor and combination load equipment shall be provided with a visible _____ marked.
nameplate
Conductors normally used to carry current shall be made of ____ unless otherwise provided in the PEC.
copper
Listed riser signaling raceways shall be permitted to be installed in _____ riser runs in a shaft from floor to floor.
vertical
A(n) _____ circuit a circuit in which any spark or thermal effects is incapable of causing ignition of a mixture of flammable or combustible material in air under prescribed test conditions.
intrinsically safe
Receptacles outlets shall not be required in room dividers of the lattice type that are less than 2400 mm long, not solid, and within _____ mm of the floor.
150
The largest size of electrical metallic -C. 150 tubbing mm is?
100 mm
Listed intermediate metal conduit smaller than ______ raceway trade size shall not be used
15 mm
A single or multi-conductor dielectric insulated cable rated 2,000 volts or higher.
Type MV
Where a motor installation includes a capacitor connected on the load side of the motor overload device, the rating or setting of the motor overload device shall be based on the improved power factor of the motor circuit.
True
Lighting systems operating at 30 V or less are allowed to be concealed or extended through a building wall without regard to the wiring method use.
True
What is the length from the last point of cable support to the point of connection to a luminaire (s) or other electrical equipment and the cable and pint of connection are within an accessible ceiling?
1800 mm
Splices in ground conductors shall be as few as practicable and shall be attached so as to withstand a pull test of _____.
890N
NMC shall not exceed ____ mm and within ____ mm of every outlet box, junction box, cabinet or fitting
1400:300
Type MC cable shall not be required to be supported (unsupported) and secured where the cable is… (3)
- fished between access pints
- where concealed in finished buildings or structures
- where used in lengths not more than 1800mm
Premises power distribution systems jointly controlled by a signaling between the energy controlling equipment and utilization equipment is a _____ system.
closed loop and programmed power distribution
_____ shall be placed so as to reduce to a minimum the probability of communicating fire to adjacent combustible materials.
Switchboards
According to the Code the minimum insulation level for neutral conductor of residential installation which have solidly grounded system shall be?
300 V
Where no equipment grounding conductor exists at the outlet, replacement luminaires (fixtures), that are GFCI protected shall not be required to be connected to an equipment grounding conductor.
True
The size of conductors in cablebus system shall be in no case smaller than?
50 mm2
_____ CATV raceways shall be listed for use in risers and shall also be listed as having adequate fire-resistant characteristics capable of preventing the carrying of fire from floor to floor.
Plenum
Concealed knob and tube wiring conductors shall be rigidly supported on knobs not more than a certain minimum distance apart. What is this distance?
1300 mm
