1. A4th Periodical Exam in T.L.E 10 (ELECTRONICS)
A. Instruction: Encircle the correct answer.
1. It is used to draw parallel lines, vertical linesor inclined linesat30 or 60 degrees.
a. L-square b. Try square c. T-square d. Protractor
2. It is a combination ofT-squares, scales setsquaresand protractors attached to a drawing board.
a. Drafter b. Electronic template c. Drawing set d. French curve
3. This device includes symbolsfor electronic and electrical design thatcan be traced using a drawing pencil.
a. Triangular ruler b. Electronic manual c. French curve d. Electronic template
4. It is a smooth board usually rectangular in shape provided with perfectly straightedge which isused asworking edge on which the T-square is movedwhile making
drawings.
a. Drawing board b. Breadboard c. T-square d. Setof Squares
5. A drawing instrumentwith two-legshinged atone end and is used for drawing circlesand arcsofcircle.
a. Drafting pen b. Compass c. Technical pen d. Protractor
6. It is use to draw lines at90 degree and 45 degree to the vertical or horizontal.
a. Ruler b. Pencil c. Setsquares d. T-square
7. It is use to mark or measure angles between 0 and 180 degrees.
a. Pencil b. Ruler c. Protractor d. Compass
8. It is use to fix the drawing sheeton the drawingboard.
a. Pins and clips b. Scissor c. Compass d. Electronic template
9. The accuracy and appearance ofa drawing dependson ____.
a. Scissor b. Drawing board c. Ruler d. Drawing pencil
10. It controls the flow ofelectric currentin a circuit.
a. Capacitor b. Diode c. Resistor d. Switch
11. It can store electric energy.
a. Capacitor b. Diode c. Resistor d. Switch
12. It can adjustthe flow ofcurrentthrough the means ofmechanical movement.
a. Fixed resistor b. Fixed capacitor c. Variable resistor d. Variable capacitor
13. It is used as variable voltage divider.
a. Potentiometer b. Carbon resistor c. Film resistor d. Rheostat
14. It is used as variable resistance to control the currentin the circuit.
a. Potentiometer b. Carbon resistor c. Film resistor d. Rheostat
15. It is a constantresistance value.
a. Variable resistor b. Fixed resistor c. Variable capacitor d. Fixed capacitor
16. What is the metric unitof Farad?
a. F b. uF c. nF d. pF
17. What is the metric unitof picoFarad?
a. F b. uF c. nF d. pF
18. What is the metric unitof nanoFarad?
a. F b. uF c. nF d. pF
19. What is the metric unitof microFarad?
a. F b. uF c. nF d. pF
20. It is form of block ofsquares, rectangles or trianglesto representcomponents,group ofcomponents or units ofequivalent.
a. Pictorial diagram b. Block diagram c. Wiring diagram d. Schematic diagram
21. This diagram shows either internal or external connectionsor both and is usually down assimple as possible to trace outthe connection ofa circuit.
a. Pictorial diagram b. Block diagram c. Wiring diagram d. Schematic diagram
22. This diagram shows the picturesofthe actual components ofwiring connections although itdoes notprovide the exactsize of components.
a. Pictorial diagram b. Block diagram c. Wiring diagram d. Schematic diagram
23. It shows graphicsymbol accompanied with a reference designation to distinguish itfrom other similar symbol.
a. Pictorial diagram b. Block diagram c. Wiring diagram d. Schematic diagram
24. In reference designations, whatis the designation letter oftransistor?
a. C b. D c. Q d. Sw
25. In reference designations, whatis the designation letter ofswitch?
a. C b. D c. Q d. Sw
26. In reference designations, whatis the designation letter ofdiode?
a. D b. S c. Tr d. R
27. In reference designations, whatis the designation letter oftransformer?
a. S b. T c. C d. D
28. In the Greek letter omega (Ω) appears in a schematic diagram,the componentvalue being represented isa _______.
a. Capacitor b. Transistor c. Transformer d. Resistor
29. The labels C1A and C1B are example of______.
a. Designated letters b. Suffix letters c. Subscriptletters d. Coefficientletters
30. This type oflines is used on schematic diagramsto show a mechanical linkage between components.
a. Dashed lines b. Medium lines c. Thick lines d. Thin lines
31. It is used to identify separate pats ofa unitupon a diagram.
a. Layout b. Dashed lines c. Suffix letters d. Line thickness
32. It is a symbol on a diagram thatshould be drawn either horizontally or vertically.
a. Dashed lines b. Connecting lines c. Line thickness d. Interrupted lines
33. When groups ofline are ______, the destination of the lines is usually given in conjunction with bracket.
a. connected b. stop c. dashed d. interrupted
34. Capacitor is an example of_______.
a. Directcurrent b. Voltage c. Switch d. Alternating current
35. Extension cord is an example of______.
a. Directcurrent b. Voltage c. Switch d. Alternating current
36. It is an electrical devicehaving two estates, ONor OFF.
a. Transformer b. Solder c. Switch d. Anode
37. A diode circuitthatconnects AC to pulsating DC.
a. Rectification b. PCB c. Shortcircuit d. Rectifier
38. A voltage in which the polarity alternates.
a. Fuse b, AC voltage c. Power supply d. Output
39. An electrical equipmentused to deliver either AC or DC voltage.
a. Fuse b. AC voltage c. Power supply d. Output
40. A device in the currentpath thatmelts or breaks when currentprotective exceedsa predeterminedmaximumvalue.
a. Fuse b. AC voltage c. Power supply d. Output
