Question 1
According to Ohm's Law (U = R × I), what current flows through an electric heating element with a resistance of 46 Ω when connected to a standard single-phase 230 V supply?
Correct Answer:
5.0 A
Question 2
What is the primary safety function of a 30 mA high-sensitivity residual current device (Disjoncteur Différentiel à Haute Sensibilité — DDR 30 mA) in domestic and workshop electrical installations?
Correct Answer:
Protecting persons against electric shock from direct and indirect contact by cutting power when leakage current to earth reaches 30 mA
Question 3
In a balanced three-phase AC distribution system with a phase-to-neutral voltage (V) of 230 V, what is the phase-to-phase line voltage (U)?
Correct Answer:
400 V
Question 4
A single-phase AC motor draws a current of 10 A at 230 V with a power factor (cos φ) of 0.80. What is the active power (P) consumed by this motor?
Correct Answer:
1,840 W
Question 5
Under standard electrical installation regulations (such as NF C 15-100 and CEMAC harmonization standards), which color combination is strictly reserved for the Protective Earth (PE) conductor?
Correct Answer:
Green and yellow stripes (Vert-Jaune)
Question 1
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About this Exam

Prepare with the Cameroon CAP Vocational Trades Practice Questions - Certificat d'Aptitude Professionnelle - CAP (Cameroon) Exam practice quiz. This question bank includes 100 questions covering engine, primary, concrete, standard, and motor. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Cameroon CAP Vocational Trades Practice Questions - Certificat d'Aptitude Professionnelle - CAP (Cameroon) Exam

This practice set contains 100 questions from the matching question bank and focuses on engine, primary, concrete, standard, and motor. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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