NCAE Technical-Vocational Aptitude 1 — Questions and Answers
Question 1: Which of the following tools is used to measure electrical voltage?
- Ammeter
- Voltmeter (Correct answer)
- Ohmmeter
- Thermometer
Correct answer: Voltmeter
A voltmeter is specifically designed to measure the electrical potential difference (voltage) between two points in a circuit. An ammeter measures current, an ohmmeter measures resistance, and a thermometer measures temperature.
Question 2: What does TESDA stand for?
- Technical Education and Skills Development Authority (Correct answer)
- Technology and Engineering Standards Development Agency
- Training for Employment and Skills Development Act
- Technical Engineering and Science Development Authority
Correct answer: Technical Education and Skills Development Authority
TESDA stands for Technical Education and Skills Development Authority. It is the Philippine government agency responsible for managing and supervising technical education and skills development in the country.
Question 3: In basic electrical wiring, what color is typically used for the ground wire in the Philippines?
- Red
- Black
- Green or green with yellow stripe (Correct answer)
- Blue
Correct answer: Green or green with yellow stripe
In Philippine electrical wiring (following the Philippine Electrical Code), the ground wire is typically green or green with a yellow stripe. This standardization is important for safety and allows electricians to quickly identify the grounding conductor.
Question 4: Which of the following is the correct sequence for the trouble-shooting process?
- Repair, diagnose, test, identify the problem
- Identify the problem, diagnose, repair, test (Correct answer)
- Test, repair, identify the problem, diagnose
- Diagnose, test, identify the problem, repair
Correct answer: Identify the problem, diagnose, repair, test
The correct troubleshooting sequence is: first identify the problem (symptoms), then diagnose (find the root cause), then repair (fix the issue), and finally test (verify the fix works). This systematic approach ensures efficient problem-solving.
Question 5: In carpentry, what tool is used to check if a surface is perfectly level?
- Tape measure
- Spirit level (Correct answer)
- Square
- Plumb bob
Correct answer: Spirit level
A spirit level (also called a bubble level) uses a liquid-filled tube with an air bubble to determine if a surface is perfectly horizontal (level) or vertical (plumb). The bubble centers between two marks when the surface is level.
Question 6: What is the primary purpose of Personal Protective Equipment (PPE) in a workplace?
- To make workers look professional
- To protect workers from health and safety hazards (Correct answer)
- To increase work speed
- To comply with dress codes only
Correct answer: To protect workers from health and safety hazards
PPE is designed to protect workers from health and safety hazards in the workplace. This includes items like hard hats, safety glasses, gloves, ear protection, and safety shoes, depending on the type of work.
NCAE Technical-Vocational Aptitude 1
Which of the following tools is used to measure electrical voltage?