Electric Arc -Multiple Choice Questions Quiz

Interactive MCQs on “Electric Arc”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is an electric arc?

(a) A type of electric battery
(b) A device used to generate static electricity
(c) A continuous discharge of electricity between two electrodes through ionized gas
(d) A type of lightning that occurs indoors

Question 2: Which of the following is commonly used in electric arc welding?

(a) AC (Alternating Current)
(b) DC (Direct Current)
(c) Static electricity
(d) Radio waves

Question 3: What is the temperature range of an electric arc?

(a) Below 100°C
(b) 200°C to 500°C
(c) 1000°C to 3000°C
(d) Above 5000°C

Question 4: What causes the gas between the two electrodes to become ionized in an electric arc?

(a) Low voltage
(b) High voltage
(c) Electric current
(d) Electric resistance

Question 5: What type of electric arc is used in fluorescent lamps and neon signs?

(a) Short arc
(b) Long arc
(c) High-voltage arc
(d) Low-voltage arc

Question 6: Which property of an electric arc makes it suitable for cutting and welding metals?

(a) Luminosity
(b) Heat generation
(c) Ionization
(d) High voltage

Question 7: What is the name of the device used to maintain and control an electric arc, especially in arc welding?

(a) Arc breaker
(b) Arc stabilizer
(c) Arc rectifier
(d) Welding power supply

Question 8: Which of the following is an application of an electric arc in lighting?

(a) Generating X-rays
(b) Powering a motor
(c) Lightning protection
(d) Street lighting

Question 9: What safety precaution is essential when working with electric arcs in welding or other applications?

(a) Wearing ear protection
(b) Wearing fire-resistant clothing
(c) Avoiding eye contact with the arc
(d) Standing on a conductive surface

Question 10: Which of the following is an example of an electric arc flash hazard?

(a) The light from a table lamp
(b) Lightning during a thunderstorm
(c) Static electricity from clothing
(d) An unexpected electrical discharge during maintenance work