Pec1
1. Communications wires and cables shall be separated at LEAST a certain minimum distance from service drops of electric light and power conductors which are not installed in a raceway or in a cable. What is this minimum distance?
a. 150 mm
b. 175 mm
c. 300 mm
d. 200 mm
2. A WYE-DELTA starter for a single voltage three phase SC induction motor would require the connection of a certain number of wires from the motor. How many wires would be needed?
a. 3 wires
b. 9 wires
c. 6 wires
d. 12 wires
3. As compared with solid wires, stranded wires of the same cross sectional area have the following advantages EXCEPT one. Which one is this?
a. It is larger in overall diameter
b. It is easier to skin off the insulation
c. It is better for high voltage
d. It has a higher current rating
4. According to the PEC Code, the minimum insulation level for neutral conductors of residential installations which have solidly grounded systems shall NOT be less than this voltage?
Which is this?
a. 1,000 volts
b. 300 volts
c. 600 volts
d. 750 volts
5. The grounding electrode for grounding communications system may be connected to the nearest accessible location on any of the following EXCEPT one. Which one is this?
a. Buried interior PVC water piping system
b. Grounding electrode conductor
c. Building structure
d. Counterpoise of the tower
6. Transformers are rated in
a. kW
b. kV
c. kWH
d. kVA
7. A _____ is a certain type cartridge fuse that can be readily replaced.
a. time-lag fuse
b. permanent fuse
c. one-time fuse
d. renewable fuse
8. Electricity may be produced by means of _____ forces.
a. mechanical
b. thermal
c. chemical
d. all of these
9. Openings around electrical penetrations through fire-resistant rated walls, partitions, floors or ceilings shall be ______.
a. bushed
b. sleeved
c. fire stopped
d. isolated
10. In the computation of the size of building wire, the PEC requires that at least a certain percent increase must be added. What percent is this?
a. 20%
b. 15%
c. 50%
d.
a. 150 mm
b. 175 mm
c. 300 mm
d. 200 mm
2. A WYE-DELTA starter for a single voltage three phase SC induction motor would require the connection of a certain number of wires from the motor. How many wires would be needed?
a. 3 wires
b. 9 wires
c. 6 wires
d. 12 wires
3. As compared with solid wires, stranded wires of the same cross sectional area have the following advantages EXCEPT one. Which one is this?
a. It is larger in overall diameter
b. It is easier to skin off the insulation
c. It is better for high voltage
d. It has a higher current rating
4. According to the PEC Code, the minimum insulation level for neutral conductors of residential installations which have solidly grounded systems shall NOT be less than this voltage?
Which is this?
a. 1,000 volts
b. 300 volts
c. 600 volts
d. 750 volts
5. The grounding electrode for grounding communications system may be connected to the nearest accessible location on any of the following EXCEPT one. Which one is this?
a. Buried interior PVC water piping system
b. Grounding electrode conductor
c. Building structure
d. Counterpoise of the tower
6. Transformers are rated in
a. kW
b. kV
c. kWH
d. kVA
7. A _____ is a certain type cartridge fuse that can be readily replaced.
a. time-lag fuse
b. permanent fuse
c. one-time fuse
d. renewable fuse
8. Electricity may be produced by means of _____ forces.
a. mechanical
b. thermal
c. chemical
d. all of these
9. Openings around electrical penetrations through fire-resistant rated walls, partitions, floors or ceilings shall be ______.
a. bushed
b. sleeved
c. fire stopped
d. isolated
10. In the computation of the size of building wire, the PEC requires that at least a certain percent increase must be added. What percent is this?
a. 20%
b. 15%
c. 50%
d.