CompTIA认证考试PD0-001单项选择题每日一练(2019.01.22)

单项选择题
A customer is concerned about excessive media jamming in their device. Which of the following is the FIRST thing a technician should check？（）
A.Media feed rollers
B.Cassette drawers
C.Fusing section
D.Device log data
单项选择题
Which of the following items can be used as a discharge lamp？（）
A.Halogen lamp
B.Light Emitting Diodes （LED）
C.Fuser lamp
D.Cleaning roller
单项选择题
Which of the following devices can route electrical signals only when activated by an external control signal？（）
A.Solenoid
B.Relay
C.Clutch
D.Capacitor
单项选择题
Which of the following stages in the laser print process attracts toner to the latent image on the photoconductor？（）
A.Writing
B.Fusing
C.Development
D.Transfer
单项选择题
Scheduled preventative maintenance visits should be carried out：（）
A.after two unplanned service calls.
B.according to manufacturers specifications.
C.when the device is becoming unreliable.
D.every sixty days.