单选题 When the smoke control relay R648 energizes, it supplies 28v dc to energize the supply system control interrupt relay R645.
A、When the smoke control relay R648 is powered, it gives 28v dc to activate the supply system control interrupt relay R645 .
B、As the smoke control relay R648 is connected, 28v dc is supplied to the supply system control interrupt relay R645.
C、When the smoke control relay R648 has power, it needs 28v dc to start the supply system control interrupt relay R645.
单选题 At the fire temperature set point, the gas expands more to close the FIRE pressure switch in the detector. This decreases the resistance further.
A、Set a point at the fire temperature ,the gas grows larger to close the FIRE pressure switch in the detector. This influences the resistance longer.
B、When the fire temperature is set at the point, the gas extends more to shut the FIRE pressure switch in the detector. This abates the further resistance.
C、At the fire temperature set point, the gas inflates further so as to close the FIRE pressure switch in the detector. This diminishes the resistance moreover.
单选题 Do not use a material that is not equivalent to the material specified by the manufacture, a material that is not equivalent can cause damage to the equipment and can make the warranty not applicable.
A、Do not use a material that is not the same to the material specified by the manufacture, a different material can cause damage to the equipment and can make the warranty unable to be applied.
B、Do not use a material that is not similar to the material provided by the manufacture, a material that is not similar can cause damage to the equipment and can make the warranty cancelled.
C、Use a material that has equivalency with the material specified by the manufacture, other material can cause damage to the equipment and can make the warranty not effective.
单选题 Push the interrupt switch to stop all indications except for the red alarm LED on the smoke sensor. The alarm LED will go out when the smoke sensor no longer detects smoke.
A、Push the interrupt switch to stop all indications besides the red alarm LED on the smoke sensor. The alarm LED will light up when the smoke sensor doesn't detect longer smoke.
B、Push the interrupt switch to stop all indications but the red alarm LED on the smoke sensor. The alarm LED will go off when the smoke sensor detects no more smoke.
C、Push the interrupt switch to stop all displays in addition to the red alarm LED on the smoke sensor. The alarm LED will go on when the smoke sensor no longer detects smoke.
单选题 When you push the FAULT/INOP test switch, faults are simulated to do a check of the circuit ability to detect a fault.
A、When you push the FAULT/INOP test switch, faults are emulated to do a check of the circuit to see if it has ability to detect a fault.
B、Faults are similar when doing a check of the circuit ability to correct a fault When you push the FAULT/INOP test switch.
C、When pushing the FAULT/INOP test switch, faults are shown so that we can check the circuit ability to eliminate a fault.
单选题 Before flight operations over water at low altitudes, apply corrosion-preventive fluid to the door hinges of the landing gear.
A、Scrape corrosion-protective liquid of the door connections of the landing gear earlier than the flight procedures of low water level.
B、Apply anti-corrosion fluid to the door hinges of the landing gear prior to flight operation above water at low altitude.
C、Solidify corrosion inhibitor on the door hinges of the landing gear in advance of flying across the low water.
单选题 If fuel or lubricating oil spills, clean the area immediately. A wet surface is dangerous and can cause you to fall.
A、When fuel or lubricating oil overflows, clean the area at once. There exists a danger due to the wet surface that can cause falling.
B、Clean the area where fuel or lubricating oil are knocked over without delay because the wet surface that may lead to the fall is dangerous.
C、The area contaminated by fuel or lubricating oil shall be cleared up firstly because the dirty surface brings a risk of fall.
单选题 When the hatch is closed, there is no airflow to the compartment and there is a risk of suffocation.
A、The closed door prevents airflow from entering the compartment and may cause death because of no air to breathe.
B、When the access plate is closed, the lack of ventilation of the compartment brings a risk of suffering injury.
C、If you close the opening, the airflow can not enter into the compartment and creates a risk of jam.
2024-09-12
共3512道
