Which statement about entering into a tank which has been sealed for a long time is TRUE ________.
A.The tank should be tested only once to ensure the oxygen content is at least 14% before entry
B.The tank must be tested at frequent intervals to ensure that hazardous gasses have not regenerated
C.The tank need not be tested for oxygen content if it is ventilated for more than 24 hours
D.If the oxygen content tests at less than 12% you should wear an approved gas mask
第1题:
Which statement about entry into a space that has been sealed for a long time is TRUE ________.
A.A tank that has been used to carry hazardous liquids should be tested for oxygen content,toxicity,and explosive gases
B.You can safely enter the space without a breathing apparatus if the oxygen content exceeds 14%
C.The natural ventilation through the installed vents is sufficient to provide the proper oxygen content
D.The heat of the sun on upper ballast tanks,such as in a bulk carrier,may generate carbon monoxide
第2题:
Which statement about inert gas pressures in a cargo tank is TRUE ________.
A.The pressures of the inert gas in the tank may create excessive pressure at the pump while discharging
B.Gas pressures should be maintained at the highest permissible level throughout the discharging process
C.High gas pressures may cause pyrophoric oxidation in the tank
D.High gas pressures may cause loss of suction when stripping
第3题:
第4题:
An SVI has been configured on a device. Which two statements are true about a switched virtualinterface (SVI)?()
第5题:
Which statement is true about IBGP routers? ()
第6题:
Which statement is true about the UNDO_RETENTION parameter when retention guarantee is notenabled()
第7题:
oil from flowing out of the tank vent
air from entering the tank vent
vapors from leaving the tank vent
flames on deck from entering the tank vent
第8题:
Oracle uses statistical relevance to determine when an adaptive threshold has been breached for the metric.
The statistics for the metric values observed over the baseline time period are not examined to determine threshold values.
Oracle determines when an adaptive threshold has been breached based on the maximum value captured by the baseline.
The total concurrent number of threshold violations, which must occur before an alert is raised for the metric, has been set to zero.
第9题:
Our derrick has been out of use for a long time.
Our heavy derrick has been out of use for a long time.
Our crane has been out of use for a long time.
Our winch has been out of use for a long time.
第10题:
It is the time period after which the undo data becomes obsolete.
It is the time period after which the committed undo data would be transferred to a temporary tablespace.
It is the minimum time period up to which the committed undo data would be retained if free undo space isavailable.
It is the time period after which the undo data is transferred to the Flash Recovery Area to provide readconsistency.
第11题:
An SVI is normally created for the default VLAN (VLAN1) to permit remote switchadministration
Multiple SVIs can be associated with a VLAN
SVI is another name for a routed port
An SVI is created by entering the no switchport command in interface configuration mode
An SVI provides a default gateway for a VLAN
第12题:
For the two vlans to communicate,a network statement for the trunk interface needs to be added to the OSPF configuration.
For the two vlans to communicate, a network statement for each subinterface needs to be added to the OSPF configuration.
Direct inter-vlan communication does not require OSPF
OSPF cannot be used if router-on-a-stick is configured on the router
第13题:
Which statement about the free surface effect is TRUE ________.
A.It increases in direct proportion to the length of the tank times the breadth squared
B.It decreases at increased angles of heel due to pocketing when a tank is 90% full
C.It decreases in direct proportion to increasing specific gravity of the liquid in the tank
D.In practice,the correction is considered to be a virtual reduction of KG
第14题:
第15题:
第16题:
A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()
第17题:
An SVI has been configured on a device. Which two statements are true about a switched virtual interface (SVI)?()
第18题:
The tank contains propylene
The tank's volume is 1077 cubic feet
There are three tanks in the shipment
The tank contains an oxidizing material
第19题:
Fold the hose so that the male coupling is about 4 feet from the female coupling,then roll it up
Roll the hose starting at the female end
Roll the hose starting at the male end
Fold the hose into lengths about 6 feet long and then lash the folds together
第20题:
steel surfaces consume oxygen by rusting
sealed tanks usually form a vacuum
moisture condenses in the tank, displacing the oxygen
most tank coatings give off poisonous vapors in the presence of moisture
第21题:
It is the time period after which the undo data becomes obsolete.
It is the time period after which the committed undo data would be transferred to a temporarytablespace.
It is the minimum time period up to which the committed undo data would be retained if free undo spaceis available.
It is the time period after which the undo data is transferred to the Flash Recovery Area to provide readconsistency.
第22题:
The tank is safe to enter
The tank is especially dangerous to enter
Carbon monoxide is present
Water vapor present when the tank was sealed has oxidized
第23题:
Synonyms can be created only for a table
Synonyms are used to reference only those tables that are owned by another user
A public synonym and a private synonym can exist with the same name for the same table
The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid