Smt Application Quiz

20 Questions | By Teknek_quiz_scho | Updated: Mar 21, 2022 | Attempts: 684

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20 questions on the SMT machine, applications, features and benefits. Please note most questions will have more than one answer, but not all of them!

Questions and Answers

1.

Where should the SMT machine be positioned in a production line?
- A.
  
  After the board loader
- B.
  
  After laser marking
- C.
  
  Before the screenprinter
- D.
  
  After screenprinting
2.

Why is the SMT machine required even in a Cleanroom?
- A.
  
  It is not necessary because PCB's are supplied wrapped in plastic
- B.
  
  PCB's release epoxy dust from routed edges
- C.
  
  Risk of contamination from operators
- D.
  
  Suppliers will clean boards
3.

How does the SMT help the Six Sigma process?
- A.
  
  Provides yield data
- B.
  
  Helps reduce random and variable defects
- C.
  
  Increases cycle time
- D.
  
  Helps reduce re-work
4.

Why is contact cleaning the best and most effective method?
- A.
  
  It cuts through the boundary layer
- B.
  
  It doesn't blow contamination around
- C.
  
  It doesn't scratch the board surface
- D.
  
  It removes particles down to sub micron in size
5.

Which length of machine can be supplied with the optional cartridge integrated into the machine stand?
- A.
  
  300
- B.
  
  400
- C.
  
  600
- D.
  
  All sizes
6.

What length of SMT machine does not have a fully removeable cartridge?
- A.
  
  300
- B.
  
  400
- C.
  
  600
- D.
  
  All sizes
7.

Which side of the board is cleaned in a single sided machine?
- A.
  
  Top
- B.
  
  Bottom
- C.
  
  Both
- D.
  
  None
8.

Which side of the adjustable conveyor can be the fixed Datum?
- A.
  
  Front
- B.
  
  Middle
- C.
  
  Rear
- D.
  
  Not necessary
9.

Where is the anti-static bar fitted on the SMT machine?
- A.
  
  Top entry
- B.
  
  Bottom entry
- C.
  
  Top exit
- D.
  
  Bottom exit
- E.
  
  There is no static bar
10.

What are the benefits of the SMT machine?
- A.
  
  Improves yield
- B.
  
  Ensures a clean surface for printing
- C.
  
  SMEMA
- D.
  
  Reduces random and variable defects
11.

Which feature(s) are optional?
- A.
  
  Muti-lingual, touch screen control panel
- B.
  
  Alarm beacon counter
- C.
  
  Static monitoring sensor
- D.
  
  Side access to adhesive and rubber roller
- E.
  
  SMEMA
12.

What tools are required to refresh and change the Pre-sheeted Adhesive Roll?
- A.
  
  None
- B.
  
  Allen keys
- C.
  
  Sharp knife
- D.
  
  Screw driver
- E.
  
  Power drill
13.

Where can the DCR handroller be used in an SMT company?
- A.
  
  To manually clean boards before screenprint if there is no automatic board loader, or the printer is semi-automatic (manually loaded)
- B.
  
  To clean stencils
- C.
  
  To clean work surfaces or repair stations
- D.
  
  None of the above
- E.
  
  DCR's can't be used for SMT applications
14.

What are the benefits of being able to see the contamination collected on the Adhesive Roll?
- A.
  
  Provides instant feedback to the operator that machine is working
- B.
  
  Allows analysis of root cause of contamination
- C.
  
  Makes PCB supplier look good
- D.
  
  Lets operator know when paper is due for changing
15.

Where in the SMT line would you normally install the optional static monitoring sensors?
- A.
  
  Before SMT machine
- B.
  
  After SMT machine before screenprinter
- C.
  
  After screenprint
- D.
  
  Start of the line
16.

What modes of cleaning operation can the SMT machine offer?
- A.
  
  Double sided, by-pass and single sided (all sizes)
- B.
  
  Double sided and by-pass
- C.
  
  Single sided and by-pass
- D.
  
  Double sided and single sided without extra cartridge
17.

Why is the door for the optional brush cartridge a different colour?
- A.
  
  Because the designer liked the colour
- B.
  
  Because it shows at a distance whether the machine is operating in double or single sided mode.
- C.
  
  To make it easy for the machine operator to know there are different cartridges in the machine
- D.
  
  To match the rest of the machine
18.

Can boards with components fitted be cleaned in a double sided SMT machine?
- A.
  
  Yes, but only in the 300 or 400 version with an optional brush support cartridge
- B.
  
  Yes, in all machines
- C.
  
  Only in the 600 version with an optional brush support cartridge
19.

What does this photograph suggest?
- A.
  
  There is nothing wrong with this
- B.
  
  The joint integrity of the pad is compromised as there is a reduction in solder paste
- C.
  
  This could cause a short circuit
- D.
  
  This will cause tomb stoning
- E.
  
  The long term reliability of this joint may be compromised
20.

What is the maximum speed of the SMT machine?
- A.
  
  Maximum speed is 20 m/min
- B.
  
  Maximum speed is 30 m/min
- C.
  
  Maximum speed is 40 m/min