WorksheetsVel Tech TBI PCB Quiz
Total questions: 25
Worksheet time: 13mins
PCB are classified into ……… types
7
6
8
5
conductor width is a constraint of ……type
Rigid –flex PCB.
Flexible PCB.
High frequency PCB.
Low frequency PCB
The material used for flexible PCB is
FR4
Teflon
Kapton
ABS
The 60:40 Ratio in soldering melts at temperature of
361F
316F
315F
351F
Infrared soldering is a type of
Wave
reflow
single wave
vapour phase
Flux is classified into
3
5
4
6
among the following which is an active component
Transistor
Inductor
thyristor
Amplifier
Diodes are classified into
9
10
12
8
ICs are classified into
3
5
4
2
ESD means
Electrostatic discharge
Electrostatic distortion
Electrostatic derivative
Electrostatic disturbance
Wave soldering process is divided into …….steps
6
5
4
8
Soldering rod is having a temperature of
400C
450C
470C
420C
The soldering machine should be calibrated in ……months
10
11
12
14
There are ……..parts in BOM
3
4
5
6
Solder defects are classified into ………types
18
20
22
24
SMT is divided into ….types
3
4
5
6
How many steps are there in SMT Technology?
4
5
6
7
Soldering paste can be applied by
Chemical deposition
vapour deposition
Screen printing
ink jet printing
Soldering technique is divided into ….
2
3
4
5
Short EM wave will be applied in
Wave soldering
IR soldering
lead soldering
tin soldering
The process of misalignment of chip in smt is called as
Skewing
side overhang
mounting on side
measling
The process of validating circuit board is
PFT
PTF
PTTF
PFFT
The process of testing chip with probe is called as
PFT
ICT
PTF
PTTF
The process of misplacing of IC chip is called as
Tombstoning
side overhanging
Bridging
Blistering
The over material deposition is called as
Dewetting
solder bridging
nonwetting
skewing
