eim nc written exam 2023 with complete solution
WRITTEN TEST
Qualification : ELECTRICAL INSTALLATION AND MAINTENANCE NC II
Project : Electrical Wiring & Installation Of Single Phase Three Wire System
INSTRUCTIONS:
MULTIPLE CHOICES: Choose the correct answer and write only the letter on the p...
eim nc written exam 2023 with complete solution
WRITTEN TEST
Qualification :ELECTRICAL INSTALLATION AND MAINTENANCE NC II
Project :Electrical Wiring & Installation Of Single Phase Three Wire System
INSTRUCTIONS:
MULTIPLE CHOICES: Choose the correct answer and write only the letter on the provided answer sheet.
1.Is a form of energy generated by friction, induction, or chemical change having magnetic , chemical and radiant effect.
a.electricityb nucleusc. powerd. voltage
2.The most important reason for using friction tape over a splice is to.
a.prevent damage to the rubber tapeb. increase the insulation resistance
c. make the splice as small as possibled. prevent the wire ends from separating should he wire be pulled
3.Who is the father of the electricity?
a.Joseph Swanb. Dr. William Gilbertc. Dr. Alessandro Voltd. Prof. Andre
Marie Ampere
4.One objectives of preventive maintenance is
a.to evaluate the production b. to prolong the life of the person
c. to keep the machines in good condition d. to avoid normally function of
machines
5.When circuit breaker is always tripping, most likely
a.there is an overloading b. the supply lines are openc. there is an over current
d. the load is removed
6.In climbing ladder, you must position the ladder
a.300 from the verticalb. 350 from the verticalc. 450 from the vertical
d. 750 from the vertical
7.What is the practical unit of electrical energy?
a.Ampere b. KWHr c. Powerd. Watt
8.The actual power consumed in electrical system is expressed in
a.Kilovar (KVar)b.KiloWatt - hour(KW- Hr)c. Power Factor (PF)d.
KiloWatt-Ampere( KWA)
9.An electrician should consider all equipments live unless he definitely knowsthat
they are not. The main reason of this practice is
to avoid
a.energizing the circuitb. personal injuryc. safety of workd.
unnecessary work
10.What is the minimum bending radius applied to ½”, ¾” and 1”?
a. 5 inches b. 6 inches c. 4 inches d. 3 inches
11.A motor with rated full load current of 100 amperes can be wired with cable rated a. 80% x 100 Amps b. 100% x 100 Ampsc. 125% x 100 Ampsd. 250% x 100 Amps 12.Personal Protective Equipment (PPE) helps
a. eliminate hazardsb. eliminate injuriesc. to prevent accidentd. to reduce
injuries
13.Before starting any installation work, alteration, repair of extension on any electrical system, what type of permit is needed?
a.Building permit b. Mayor’s permitc. Electrical permit d.
Working permit
14.The reason for grounding the frame of a portable electric hand tools is to:
a. prevent the frame of the tool from becoming alive-to-ground b. prevent
overheating of the tool
c. reduce electric shock d. prevent short
electrical circuit
15.What rating shall have a feeder conductor in relation to its protective device when used to general purpose?
a.No relation at allb. lower than protective devicec. equal or greater than protection ratingd. booth a & b
16.What is the PEC requirement on standard height for outlet?
a. 1 foot, 30 cm, 300 mmb. 2 feet, 60 cm, 600 mmc. 3 feet, 90 cm, 900 mm
d. 4 feet, 120 cm, 1200 mm
17.How many marking should a rigid non-metallic conduit have? a. 1b. 2c. 3d. 4
18.What type of switch is used to control one lamp from two locations?
a. single-pole switchb. three-way switchc. toggle switchd. triplex
switch
19.What device is used for testing an armature for short circuit coils?
a. ohmmeter b. meggerc. test lamp growler d.growler
20.A measuring instruments used by electricians and refrigeration mechanics for measuring dc current, dc/ac voltage and dc resistance/continuity.
a.Ammeter b. KWhr-meter c. Multimeter d. Wattmeter
21.To rescue an electric shock victim, the first thing to do is to lift away live wires with a. handb. metal rodc. wet clothd. nonconductive materials
22.What is the maximum spacing allowed for convenience outlet in continuous wall?
a.3.5 metersb. 3.6 metersc. 3.8 metersd. 4.0 meters
23.Silver is a better conductor of electricity than copper. However copper is generally used as electrical conductors. The main reasons for using copper instead of
silver is its:
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