HRPYC81 COMPREHENSIVE EXAM PREP
QUESTIONS AND SOLUTIONS VERIFIED
STUDY RESOURCE
●● The power circuit for bathroom can also supply:
i. one luminaire and one receptacle for the same bathroom
ii. Two receptacle for the same bathroom and two or more for another
bathroom
iii. Two receptacle and two luminaire for the same bathroom and two
more receptacle and luminaire for another bathroom.
A. I only B. II only C. III only D. all of the above
Answer: A. I only
●● What are the two type of instrument transformers?
A. Current & potential transformer
B. autotransformer & grounding transformer
C. power & Potential transformer
D. impedance & potential transformer
Answer: A. Current & potential transformer
●● When you place a measuring meter in parallel to the load, the
instrument is a/an______.
,A. voltmeter B. Ammeter C. Wattmeter D. either A or C
Answer: A. voltmeter
●● What is the measuring instrument used to measure current?
A. voltmeter B. Ammeter C. Volt-amp. meter D. calorimeter
Answer: B. Ammeter
●● In the left hand rule, point finger always represent
A. Voltage
B. Direction of force on conductor
C. Current
D. Magnetic field
Answer: D. Magnetic field
●● In Registered Electrical Engineer Licensure Examination under RA
7920, the passing is at least 70% weighted average provided that no
grade is lower that _____ % in any of the Subjects.
A. 25 B. 30 C. 50 D. 45
Answer: C. 50
●● Ampere-hour of a battery depends on ____ of the plates.
A. thickness B. strength C. distance D. Area
Answer: D. Area
,●● When the sole purpose of ac is to produce heat, the selection is based
on ____.
A. RMS value B. Average value C. maximum value D. Peak value
Answer: A. RMS value
●● In EPIRA LAW, what is the maximum long duration voltage
variation? A. 5% B. 10% C. 2.5% D. 3%
Answer: B. 10%
●● In PEC, what is the allowable voltage drop in feeder supplying
lighting?
A. 5% B. 2% C. 10% D. 3%
Answer: D. 3%
●● f an electrical network having one or more than one voltage source,
is transformed into equivalent electrical network with a single voltage
source (which is short circuit current of previous circuit) with parallel
internal resistance of the network with all current source replaced by
their internal resistance. The above illustration is called
A. Thevenin's theorem
B. Norton's theorem
C. reciprocity theorem
D. Superposition theorem
, Answer: B. Norton's theorem
●● Which is not the basic Rule of PEC 2009?
A. Construction Rule
B. Installation Rule
C. Design Rule
D. Manufacturing Rule
Answer: A. Construction Rule
●● What is the maximum rating of overcurrent protection device for
20A Air conditioning unit?
A. 20A B. 25A C. 30A D. 35A
Answer: D. 35A
●● (Answer letter only)
Regarding Thevenin's equivalent, which of the following is not correct?
A. The voltage source in the Thevenin's equivalent circuit is open circuit
voltage of the network when load is disconnected
B. The Thevenin's equivalent resistance is the resistance of the network
when all voltage sources are short circuited
C. The Thevenin's equivalent resistance is calculated when all voltage
sources are open circuited
D. Thevenin's equivalent is the voltage equivalent of the network
QUESTIONS AND SOLUTIONS VERIFIED
STUDY RESOURCE
●● The power circuit for bathroom can also supply:
i. one luminaire and one receptacle for the same bathroom
ii. Two receptacle for the same bathroom and two or more for another
bathroom
iii. Two receptacle and two luminaire for the same bathroom and two
more receptacle and luminaire for another bathroom.
A. I only B. II only C. III only D. all of the above
Answer: A. I only
●● What are the two type of instrument transformers?
A. Current & potential transformer
B. autotransformer & grounding transformer
C. power & Potential transformer
D. impedance & potential transformer
Answer: A. Current & potential transformer
●● When you place a measuring meter in parallel to the load, the
instrument is a/an______.
,A. voltmeter B. Ammeter C. Wattmeter D. either A or C
Answer: A. voltmeter
●● What is the measuring instrument used to measure current?
A. voltmeter B. Ammeter C. Volt-amp. meter D. calorimeter
Answer: B. Ammeter
●● In the left hand rule, point finger always represent
A. Voltage
B. Direction of force on conductor
C. Current
D. Magnetic field
Answer: D. Magnetic field
●● In Registered Electrical Engineer Licensure Examination under RA
7920, the passing is at least 70% weighted average provided that no
grade is lower that _____ % in any of the Subjects.
A. 25 B. 30 C. 50 D. 45
Answer: C. 50
●● Ampere-hour of a battery depends on ____ of the plates.
A. thickness B. strength C. distance D. Area
Answer: D. Area
,●● When the sole purpose of ac is to produce heat, the selection is based
on ____.
A. RMS value B. Average value C. maximum value D. Peak value
Answer: A. RMS value
●● In EPIRA LAW, what is the maximum long duration voltage
variation? A. 5% B. 10% C. 2.5% D. 3%
Answer: B. 10%
●● In PEC, what is the allowable voltage drop in feeder supplying
lighting?
A. 5% B. 2% C. 10% D. 3%
Answer: D. 3%
●● f an electrical network having one or more than one voltage source,
is transformed into equivalent electrical network with a single voltage
source (which is short circuit current of previous circuit) with parallel
internal resistance of the network with all current source replaced by
their internal resistance. The above illustration is called
A. Thevenin's theorem
B. Norton's theorem
C. reciprocity theorem
D. Superposition theorem
, Answer: B. Norton's theorem
●● Which is not the basic Rule of PEC 2009?
A. Construction Rule
B. Installation Rule
C. Design Rule
D. Manufacturing Rule
Answer: A. Construction Rule
●● What is the maximum rating of overcurrent protection device for
20A Air conditioning unit?
A. 20A B. 25A C. 30A D. 35A
Answer: D. 35A
●● (Answer letter only)
Regarding Thevenin's equivalent, which of the following is not correct?
A. The voltage source in the Thevenin's equivalent circuit is open circuit
voltage of the network when load is disconnected
B. The Thevenin's equivalent resistance is the resistance of the network
when all voltage sources are short circuited
C. The Thevenin's equivalent resistance is calculated when all voltage
sources are open circuited
D. Thevenin's equivalent is the voltage equivalent of the network
