题目内容

The DC Power Supply Product Manual includes introduction, panel controls and indicators, (), main specifications, maintenance, warranty and technical Support. （单选）

A. operating instructions
B. replaceable parts
C. table of contents
D. safety summary

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The DC Power Supply Product warranty may last a period of one year from the date of (). Any part of the product which is deemed to be defective in material or workmanship will be repaired or replaced.（单选）

A. receiving
B. using
C. purchasing
D. shipping

Scientific Power Supply provides( )output.

A. constant AC voltage
B. constant AC current
C. constant DC voltage
D. constant DC current

To get 6V DC output, users can follow the instructions: turn the DC CURRENT ADJUST knob fully clockwise, then adjust the () knob until the 6V indicated on the meter.

A. DC VOLTAGE ADJUST
B. VOLTAGE COARSE ADJUST
C. VOLTAGE FINE ADJUST
DC CURRENT ADJUST

For the AC line voltage of 220V, on the Rear Panel of the Power Supply, the AC Switch 17 should be set to () position and the AC Switch 18 should be set to () position.

A. up
B. down
C. left
D. right