PCB Design MCQs (Chapterwise Multiple Choice Questions)

Which of the following is a base material used in the manufacturing of flexible PCBs?

Epoxy resin

Polyester foil

Teflon foil

All of the above

Answer & Explanation

Correct Answer: Epoxy resin

Note: This Question is unanswered, help us to find answer for this one

Which of the following is a type of soldering fluxes?

Corrosive fluxes

Intermediate fluxes

Non-corrosive fluxes

All of the above

Answer & Explanation

Correct Answer: All of the above

Note: This Question is unanswered, help us to find answer for this one

To overcome the motorboating effect, we must _____.

do decoupling of power supply conductors with sufficiently large capacitors

do decoupling of power supply conductors with small capacitors

not to do any decoupling

Answer & Explanation

Correct Answer: do decoupling of power supply conductors with sufficiently large capacitors

Note: This Question is unanswered, help us to find answer for this one

In fast signal or high – speed logic circuits , the conductors are considered to be _____.

impedances

transmission lines

capacitors

inductors

Answer & Explanation

Correct Answer: transmission lines

Note: This Question is unanswered, help us to find answer for this one

In the component code used in the circuit diagram, by which letter, according to ANSI, is an integrated circuit represented?

I

C

U

T

Answer & Explanation

Correct Answer: U

Note: This Question is unanswered, help us to find answer for this one

How much copper surface is reserved on multilayer boards for the solderability test?

20×70 mm

10×50 mm

20×70 cm

10×50 cm

Answer & Explanation

Correct Answer: 10×50 mm

Note: This Question is unanswered, help us to find answer for this one

Large values of wave impedance call for _____.

broader signal conductors

thin signal conductors

both a and b

Answer & Explanation

Correct Answer: thin signal conductors

Note: This Question is unanswered, help us to find answer for this one

Etch back is a technique by which ______.

epoxy smear is removed and the exposed glass fibers prepared for copper deposition

epoxy smear is deposited and the exposed glass fibers prepared for copper removal

etchants are removed again

None of the above

Answer & Explanation

Correct Answer: epoxy smear is removed and the exposed glass fibers prepared for copper deposition

Note: This Question is unanswered, help us to find answer for this one

The biggest problem associated with striplines and microstrip lines is the

low attenuation per unit length

high attenuation per unit length

low impedance per unit length

high impedance per unit length

Answer & Explanation

Correct Answer: high attenuation per unit length

Note: This Question is unanswered, help us to find answer for this one

Self soldering or soldering generally implies that the joining process occurs at temperatures below

100°c

200°c

350°c

450°c

Answer & Explanation

Correct Answer: 450°c

Note: This Question is unanswered, help us to find answer for this one

PCB Design Quick Quiz

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