College of Arts & Sciences of Asia & the PacificBacolod
CityPRELIMINARY EXAMINATION1st Semester, A.Y. 2013-2014CNT114
(FUNDAMENTALS OF ELECTRONICS) DCT 2-A , 15KERWIN P. PAGAYON
TEST I. CONVERT THE FF. RESISTOR COLOR TO RESISTOR VALUE
RESISTOR COLORRESISTOR VALUE
1 .RED RED BLACK GOLD
2. ORANGE WHITE SILVER GOLD
3. BROWN GRAY BLACK GOLD
4. BROWN BLACK BLACK GOLD
5. RED VIOLET RED GOLD
TEST II RESISTOR COLOR CODING (CONVERT THE FF. RESISTOR VALUE TO
COLOUR W/ 5%TOLERANCE)NOTE: NO COLOR OF TOLERANCE AUTOMATICALLY
WRONG1.)1.5Mega ohms
2.)4.7 ohms
3.).82 ohms
4.)56 K ohms
5.)39 K ohms
TEST III. DRAW AND LABEL THE FF. SCHEMATIC DIAGRAM 15 POINTS
EACH
1. SPLIT TYPE POWER SUPPLY2. FULL WAVE POWER SUPPLY
TEST IV ESSAY 15 POINTS EACH
DISCUSS THE FF.
1. WHAT ARE THE CAUSES OF INTERMITTENT OPERATION OF ATX POWER
SUPPLY?2. WHAT ARE THE CAUSES OF DEADSET ATX POWER SUPPLY?
