Build readiness quiz.

Twelve questions on the facts that prevent most first-build failures. A score of 9 or better is the suggested readiness mark.

Question 01What gets soldered at an integrated-circuit location?

The chipThe empty socketBoth chip and socketNeither

Question 02Which description best matches a reliable solder joint?

A dull round ballA shiny smooth coneA bare copper ringA tall sharp spike

Question 03Why are the shortest components installed first?

They use the most powerThey can sit flat while the board is flippedThey determine battery polarityThey are always directional

Question 04Which resistor fact is correct?

Every resistor has polarityBody direction matters more than valueValue and board location matter; direction does notAll 11 resistors have the same value

Question 05How are all eight LEDs oriented?

Long leg leftLong leg right in the + holeFlat side rightEither direction works

Question 06Where does the striped negative side of C1 face?

LeftRightUpDirection does not matter

Question 07Which capacitor marking pair is correct?

C2 = 103; C3 = 474C2 = 474; C3 = 103C2 = 555; C3 = 138Both are 180

Question 08Which way does the IC4 notch point?

UpDownLeftRight

Question 09Where is the battery holder mounted?

Front of the boardBack of the boardEither sideOn top of IC4

Question 10A single LED never lights. What should you inspect first?

Every resistor valueThat LED's polarity and two jointsThe battery brandAll four chip labels

Question 11Which switch behavior is correct?

SW1 springs back; SW2 latchesBoth switches latchSW1 latches; SW2 springs backBoth switches spring back

Question 12What should you do if a powered board gets hot or smells unusual?

Hold SW2 longerAdd more solderSwitch it off immediatelyTouch each chip to find the hot one

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