NEW
Font size
WorksheetsElectric Heating Quiz
Total questions: 10
Worksheet time: 5mins
Which of the following is an advantage of electric heating over conventional methods?
Higher maintenance cost
Uneven temperature distribution
Pollution due to smoke
Precise temperature control
In resistance heating, heat is produced due to:
Magnetic hysteresis
Induced eddy currents
Dielectric losses
I²R losses in the conductor
Which method of electric heating is best suited for heating non-conductive materials like plastics?
Induction heating
Resistance heating
Dielectric heating
Arc heating
Induction heating is based on the principle of:
Electric arc
High voltage discharge
Electromagnetic induction
Resistance of materials
Which of the following is NOT a component of electric resistance welding equipment?
Welding transformer
Electrodes
Induction coil
Timer circuit
In arc welding, the arc is formed between:
Two electrodes
Electrode and workpiece
Transformer terminals
Core and coil
Which of the following is a disadvantage of A.C. welding over D.C. welding?
Less arc blow
Uniform arc
Difficulty in arc striking
Lower equipment cost
What is the major advantage of D.C. welding over A.C. welding?
Arc blow is minimized
Lower power consumption
Arc is more stable and easier to control
Requires no rectifiers
Spot welding is a type of:
Arc welding
Resistance welding
Dielectric heating
Induction welding
Which of the following materials is commonly used for heating elements in resistance heating?
Copper
Aluminum
Nichrome
Silver
