Jas Electrics
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- Jan 25, 2012
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hi doing a test paper and werent too sure about some of the questions. Any help??????
A human sense appropriate during inital verfication of an installation would be
a. Touch
b. Taste
c. Intuition
d.None
is the answer none. As senses are used for inspection
Where mechanial protection is not provided, supplementary bonding conductors should be of a CSA of not less than
a.2.5mm2
b.4.00mm2
c.6.00mm2
d.10.00mm2
Answer c??????
An additional CPC is connected in parallel with the SWA of a cable. This has the effect of?
a.increasing the overall resistance
b.decreasing the overall resistance
c. decreasing the voltage drop under load conditions
d. increasing the voltage drop under load conditions.
Answer A?????????
In order to ensure that the risk of electric shock under fault conditions is significantly reduced , it is important that,
a. basic protection is provided
b.all protective conductors termination have a warning label
c.all protective conductors are in place and disconnection times are met
d.the earthing conductors must not be less than 25.00mm2
Answer A or C????????
A 100 mA RCD is installed to provide fault protection. The maximum applied test current to confirm compliance is
a.50mA
b.100mA
c.150mA
d.200mA
Answer a????????????
A human sense appropriate during inital verfication of an installation would be
a. Touch
b. Taste
c. Intuition
d.None
is the answer none. As senses are used for inspection
Where mechanial protection is not provided, supplementary bonding conductors should be of a CSA of not less than
a.2.5mm2
b.4.00mm2
c.6.00mm2
d.10.00mm2
Answer c??????
An additional CPC is connected in parallel with the SWA of a cable. This has the effect of?
a.increasing the overall resistance
b.decreasing the overall resistance
c. decreasing the voltage drop under load conditions
d. increasing the voltage drop under load conditions.
Answer A?????????
In order to ensure that the risk of electric shock under fault conditions is significantly reduced , it is important that,
a. basic protection is provided
b.all protective conductors termination have a warning label
c.all protective conductors are in place and disconnection times are met
d.the earthing conductors must not be less than 25.00mm2
Answer A or C????????
A 100 mA RCD is installed to provide fault protection. The maximum applied test current to confirm compliance is
a.50mA
b.100mA
c.150mA
d.200mA
Answer a????????????