单选题 Make sure that the hydraulic fluid level is within the specified range.

A、 确保液压油温度在规定范围内.
B、 确保液压油液面在规定范围内.
C、 确保液压油压力在规定范围内.
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单选题 The pressure gauge should read between 40 and 60 psi.

A、压力表读数应在40到60 psi之间.
B、压力表读数应低于40 psi.
C、压力表读数应高于60 psi.

单选题 The filter element must be replaced after 500 flight hours.

A、每500飞行小时后必须更换滤芯.
B、每500飞行小时后必须清洁滤芯.
C、每500飞行小时后必须检查滤芯.

单选题 If the warning light comes on, stop the engine immediately.

A、如果警告灯熄灭,立即停止发动机.
B、如果警告灯亮起,立即停止发动机.
C、如果警告灯闪烁,立即启动发动机.

单选题 The access panel must be secured before the aircraft takes off.

A、起飞前必须固定好接近面板.
B、着陆后必须打开接近面板.
C、滑行期间必须拆除接近面板.

单选题 The ammeter shows the current flowing through the circuit.

A、电流表显示流过电路的电压.
B、电流表显示流过电路的电流.
C、电压表显示流过电路的电流.

单选题 If you cannot remove the bolt, apply penetrating oil and wait.

A、如果能拆下螺栓,涂抹渗透油并等待.
B、如果不能拆下螺栓,涂抹渗透油并等待.
C、如果不能拆下螺栓,涂抹密封胶并等待.

单选题 Remove the four screws that hold the cover in place.

A、安装固定盖板的四个螺钉.
B、拆下固定盖板的四个螺钉.
C、拧紧固定盖板的四个螺钉.

单选题 If the pressure is low, adjust the regulator to increase the flow.

A、如果压力低,调节调压器以增加流量.
B、如果压力高,调节调压器以减少流量.
C、如果压力低,关闭调压器以停止流量.