99. When marking underground facilities
Answer: B
No access to a facility
When marking underground facilities, the designation indicates that there is no access to a facility at that location.
A) the symbol B is used to designate
This option is incorrect because it does not specify the meaning of the symbol B in terms of access to underground facilities. Simply stating that the symbol B is used does not provide information about what it designates regarding accessibility.
B) no access to a facility
This option is correct as it clearly states that the marking signifies that there is no access to the underground facility at that specific location. This is a critical piece of information for ensuring safety and proper maintenance.
C) an abandoned facility
This option is incorrect because while an abandoned facility may not be accessible, the marking specifically indicates that access is not permitted, rather than the status of the facility itself.
D) no EMS marker at this location
This option is incorrect because it suggests the absence of an emergency marker rather than providing information about access. The marking is concerned with access to the facility, not the presence or absence of an EMS marker.
E) the location of the end of a service line
This option is also incorrect because it describes a different aspect of facility marking. The end of a service line may be marked, but it does not imply that there is no access to the facility.
Conclusion
The option stating "no access to a facility" is definitively correct because it directly relates to the implications of the marking used for underground facilities. All other options either misinterpret the meaning of the marking or address unrelated concepts, thereby failing to provide the correct context for the question.