Republicof theP hilippines
Department of Education
REGION III – CEN TRAL LUZON
SCH OOLS D IVISION OF CABAN ATUAN CITY
MAYAPYAP N ATION AL H IGH SCH OOL
MAYAPYAP N ORTE, CABAN ATUAN CITY
TECHNICAL VOCATIONAL LIVELIHOOD
Electrical Installation and Maintenance 11
First Periodical Test, SY 2024-2025
Directions: Read each item carefully. SHADE the CIRCLE that corresponds to the LETTER of your answer on the
provided answer sheet.
1. Marco is an EIM student and is currently studying the current flow. Which among the following laws states, that “The
amount of current is proportional to the voltage applied to the circuit and inversely proportional to the resistance of the
circuit.”?
A. Ampere’s Law C. Kirchoff’s Law
B. Coulomb’s Law D. Ohm’s Law
2. Gideon is experimenting about electrical flow. Which of the following is a passive electrical component that creates
resistance in the flow of electric current?
A. Capacitor C. Wire
B. Resistor D. Switches
3. Andro needs to measure the resistance of an electrical component, which of the following is the unit of measurement of
resistance?
A. Ampere C. Watt
B. Ohm D. Volt
4. Gido is an EIM student and is experimenting in installing an electrical outlet. Which of the following is the complete
circular path that electricity flows through and consisted of a current source, conductors, and a load?
A. Circuit C. Resistance
B. Current D. Voltage
5. In an electrical flow, which of the following describes the “pressure” that pushes electricity?
A. Circuit C. Resistance
B. Current D. Voltage
6. In Ohm’s Law formula, what is the symbol of “I” and with the unit of measurement of Ampere?
A. Circuit C. Resistance
B. Current D. Voltage
7. While you are working on the lightbulbs in your living room, you have noticed that one of the bulbs is broken but the other
bulbs are lit up, but those lightbulbs are sharing the same electrical node. What kind of connection does this represent?
A. Parallel Circuit C. Series Circuit
B. Resistance Circuit D. Voltage Circuit
8. You are going to compute the voltage drop of every load in a circuit? What Ohm’s Law basic formula is being used if we
are looking for the voltage?
A. V=R/I C. V=I(R)
B. V=I/R D. V=R-I
9. Based on the situation in number 8, what Ohm’s Law basic formula is being used if we are looking for the resistance total
in a circuit?
A. R=V/I C. R=V(I)
B. R=I/V D. R=I(V)
10. Mareng is repairing his electrical power inverter that has cross-head screws. What type of screwdriver is she going to use
to drive screws with cross-slot heads?
A. Allen wrench C. Philips
B. Flat D. Offset
11. Based on the situation in number 10, what is the suitable screwdriver she is going to use if the screws of the inverter have
a single slot head?
A. Allen wrench C. Philips
B. Flat D. Offset
12. Kulas is working with the circuit breakers with hexagonal slot heads. Which of the following screwdrivers is suitable for
his work?
A. Allen wrench C. Philips
B. Flat D. Offset
1
13. Juan is measuring the thickness and diameter of wires that are needed to install in his electrical project. What electrical
tool is being used to measure the thickness or diameter of wire?
A. Multimeter C. Wire gauge
B. Wire meter D. Wire tester
14. Johny is installing a safety component in an electrical circuit. Which of the following electrical supplies is suitable and
has the capability to interrupt the flow of electricity when a short circuit or overcurrent occurs?
A. Circuit breaker C. Safety switch
B. Circuit breaker box D. Utility box
15. You need to install a convenience outlet. Which of the following electrical supplies has a rectangular shape in which a
flush-type convenience outlet and switch are attached?
A. Circuit breaker C. Safety switch
B. Junction box D. Utility box
16. When you are installing an electrical circuit, which of the following electrical supplies has an octagonal shape where the
connections or splices of wires are being done?
A. Circuit breaker C. Safety switch
B. Junction box D. Utility box
17. Nowadays, most electricians are recommending this type of electrical wire because it is much more flexible and can
withstand more bending. What type of wire contains a group of twisted wires to form a metallic string?
A. Cable wire C. Solid wire
B. Duplex wire D. Stranded wire
18. Mang Sergio is an electrician and is not recommending this type of wire because in repetitive motion applications this
wire can result in cable damage. What type of wire consists of a single conductor?
A. Cable wire C. Solid wire
B. Duplex wire D. Stranded wire
19. Mang Kulas is an electrician, and he is going to install a pvc raceway for the electrical wiring, which of the following tool
will help him to put the wires inside the pipe from end-to-end?
A. Iron pipe bender C. Wire stripper
B. Piece of string D. Wire puller
20. You are going to install an additional electrical outlet in your room and you decided to use a medium sized wire to do
your job. Which of the best tool will you use to remove the insulation of the wires?
A. Iron pipe bender C. Wire stripper
B. Piece of string D. Wire puller
21. Which of the following statements is NOT TRUE about the electrical circuit breaker?
A. An electrical protective device. C. Interrupts the current flow when there is an overload.
B. Cuts the flow of current when short circuit occurs. D. Used as passage of wire for protection and insulation.
22. If you need to install a convinience outlet that is mounted inside the wall and leaving only the cover plate, which options
below is the best to use?
A. Flush Type Outlet C. Surface Type Outlet
B. Flush Type Switch D. Surface Type Switch
23. The following statements are correct about wires and cables EXCEPT;
A. A wire serves as a current’s path in an electrical circuit.
B. Cables are composed of single insulated electric conductor.
C. Wires and cables are made of brass or aluminum.
D. Wires are both insulated solid or stranded brass or aluminum.
For numbers 24-29,
Andro is doing an inventory of electrical tools and is categorizing them by their usage. Answer the following
questions to help Andro categorize the tools.
24. What do you call to the handheld tools that are operated without electricity or other power?
A. Hand tools B. Hydraulic tools C. Measuring tools D. Pneumatic tools
25. Which of the following tools below are used to take a count of quantitative data, such as weight, length, time or
temperature?
A. Hand tools B. Hydraulic tools C. Measuring tools D. Pneumatic tools
26. In the listed choices below, which tools are being powered by pressurized fluid to operate?
A. Hand tools B. Hydraulic tools C. Measuring tools D. Pneumatic tools
27. Which of the following tools below operates using a pressurized air?
A. Hand tools B. Hydraulic tools C. Measuring tools D. Pneumatic tools
28. Which of the following screwdriver is used in fastening negative or slotted screws?
A. Flat B. Philips C. Pozidriv D. Robertson
29. The following tools below are the different types of pliers, which of these is best in remowing the wire insulation?
A. Combination pliers C. Long nose pliers
B. Diagonal side cutting pliers D. Wire stripper
30. Kulas is an electrician, and he is installing some outlets and raceway in the corner of the wall, what tool will help him the
most in bending a PVC pipe as the wire raceway?
A. Air nibbler B. Heat gun C. Iron pipe bender D. Power threader
31. “Electricians read and interpret drawings, blueprints, plans, and electrical code specifications to determine the layout of
industrial equipment installations.”
This statement is:
A. Always true B. Always false C. Maybe true D. Sometimes false
2
32. “Electricians design and documents commercial and industrial building projects.”
This statement is:
A. Always true B. Always false C. Maybe true D. Sometimes false
33 “Electricians install and maintain single-phase high voltage switchgear, transformer, switchboard, and metering.”
This statement is:
A. Always true B. Always false C. Maybe true D. Sometimes false
34. You are an electrician, which of the following is NOT included in your work?
A. Building-Wiring Electrician C. Commercial internet installer
B. Residential/Commercial-Wiring Electrical D. Maintenance Electrician
35. The work of an electrician does not stop after the installation process. The following are reasons why electrical
maintenance is important, EXCEPT:
I. It makes your equipment last longer. III. It prevents accidents from happening
II. It enables you to save money spent on energy. IV. It helps to point out any faulty appliance problems
A. I and II B. II and III C. III only D. IV only
For numbers 36-38, analyze the series circuit diagram below to answer the following questions.
36. What is the calculated current total based on the known values in the diagram?
A. 0.183 ampere C. 0.1855 ampere
B. 0.184 ampere D. 0.185 ampere
37. What is the calculated voltage drop for the first resistor?
A. 6.475 volts C. 9.23 volts
B. 8.325 volts D. 9.27 volts
38. What is the calculated voltage drop for the third resistor?
A. 6.462 volts C. 9.25 volts
B. 8.325 volts D. 9.27 volts
For numbers 39-41, analyze the parallel circuit diagram below to answer the following questions.
39. Based on the diagram, what is the total of calculated resistance?
A. 3.30 ohms C. 62 ohms
B. 3.31 ohms D. 74 ohms
40. What is the total calculated voltage?
A. 1.33 volts C. 52.80 volts
B. 4.83 volts D. 1,152 volts
41. What is the amperage value that flows in the first resistor?
A. 1.96 amperes C. 4.40 amperes
B. 3.78 amperes D. 5.88 amperes
For numbers 42-44, interpret the diagram and answer the following questions.
42. Based on the diagram, what type of electrical connection is that?
A. Combined Series-Parallel C. Parallel Connection
B. Series Connection D. One switch controlled by 2 lamps
43. In actual wiring installation, how many junction boxes are needed?
A. 1 C. 3
B. 2 D. 4
44. What does line 2 mean about the real wiring installation?
A. Hotwire C. Positive wire
B. Neutral wire D. Red wire
3
For numbers 45-50, interpret the diagram and answer the following questions.
45. Based on the diagram, what type of electrical connection is that?
A. Combined Series-Parallel C. Parallel Connection
B. Series Connection D. One switch controlled by 3 lamps
46. How many light bulb receptacles and junction boxes are needed?
A. 3,7 C. 5,7
B. 3,6 D. 5,6
47. In what bulbs are in series connection?
A. Bulbs 1 and 2 C. Bulb 2 only
B. Bulbs 2 and 3 D. Bulb 3 only
48. In what bulbs are in the parallel connection?
A. Bulbs 1 and 2 C. Bulb 2 only
B. Bulbs 2 and 3 D. Bulb 3 only
49. Referring to the diagram, if you remove bulb 1 from the circuit, will bulbs 2 and 3 still work?
I. No, bulbs 1 and 2 are in a series connection. III. No, bulbs 2 and 3 are in a series connection.
II. Yes, bulbs 1 and 3 are in a series connection. IV. Yes, bulbs 1 and 2 are in parallel connection.
A. I and II C. III only
B. II and III D. IV only
50. If bulb 3 is taken out of the circuit, will bulb 2 continue to function?
I. No, bulbs 1 and 2 are in a series connection. III. No, bulbs 2 and 3 are in a series connection.
II. Yes, bulbs 1 and 3 are in a series connection. IV. Yes, bulbs 1 and 2 are in parallel connection.
A. I and II C. III only
B. II and III D. IV only
Prepared by:
ROWELL A. SALVATIERRA
Teacher III
Checked and Verified:
SAMANTHA A. DELA SANTA
Teacher II/ English Specialist
FELOMINA F. DE GUZMAN
Teacher III
RUBEN C. FERNANDEZ
Head Teacher III, TLE
Noted:
MARY JANE V. IPURONG PhD
Principal IV
