Why Ferric chloride acid is used?
To clean PCB from dust.
To remove unwanted copper from a PCB.
To clean the holes in PCB.
To remove unwanted fiber from a PCB.
A portion of exposed metal on the surface of a printed circuit board (PCB) to which a component is soldered is called
PCB
Engraving
Etching
Pad
Where does the resistor terminals have to be soldered in PCB
Tracks
On Pad
On Via
On any component.
The line in between two pads is called
Tracks
Pad
Jumpers wire
Via
The PCB fabrication step shown in figure is
Preparing the artwork for PCB
Developing the image to print on PCB
Etching the PCB
Exposing print on photoresist PCB
For the manufacture of a printed circuit board are shown below. State Fifth steps for making PCB manually in the correct order
5
2
4
1
Which terminology is defined as a mechanical assembly consisting of layers of fiberglass sheet laminated with etched copper patterns?
Pad
Etching
PCB
Engraving
For the manufacture of a printed circuit board are shown below. State Fourth steps for making PCB manually in the correct order
1
5
4
2
When using a single layer PCB and it is impossible to connect complete a track connection it. What will you do?
Leave the circuit as it is.
Complete the track by a jumper wire.
Try to find another design.
Make a crossover track.
During the process of designing and making a Printed Circuit Board the artwork shown in figure is called
Real world artwork
Silk screen artwork
Solder side artwork
Component side artwork
Refer to the figure shown identify the types of layer.
Multi- layer
No layer
Single Layer
Double layer
For the manufacture of a printed circuit board are shown below. State First steps for making PCB manually in the correct order
3
2
1
4
PCB method which allows the components to be simply set on a board not requiring that leads pass through holes in the board is called
Solder mask
Surface mount
Plated through
Solder mount
Refer to the figure shown identify the types of layer.
No layer
Single Layer
Multi- layer
Double layer
In the process of the following track and pads to make circuit connection using drill.
Pad
Etching
Engraving
PCB
For the manufacture of a printed circuit board are shown below. State Third steps for making PCB manually in the correct order
5
2
4
1
What does PCB stand for
Printed Circuit Base
Printed Control Base
Printed Circuit Board
Printed Control Board
What does engraving process do to PCB?
Just to draw names and silk resist of the circuit.
Chemically remove unwanted metal from PCB.
Isolates all tracks and pads from entire metal layer.
Only make holes to the PCB
The process that protects a PCB from dust oils and dirt is
Coating
Cleaning
Photo-resist.
Etching
In the process of the following connections between layers
Pad
Etching
PCB
Vias
For the manufacture of a printed circuit board are shown below. State Second steps for making PCB manually in the correct order
2
4
3
1
Where can surface-mount components be normally mounted on single layer PCB?
Only on copper layer.
Only on fiber layer.
Not allowed in single layer.
On both layers.
Refer to the figure shown identify the types of layer.
Multi- layer
Single Layer
Double layer
No layer
In the process of making PCB Ferric Chloride solution is needed during which process?
PCB
Pad
Etching
Engraving
Which of the following is equivalent to wire for conducting signals?
Tracks
PCB
Via
Pad