ELECTRICIAN- Home Appliances MCQ

ELECTRICIAN- Home Appliances MCQ

Prepare for your examinations with a set of multiple choice questions (MCQs) related to Home Appliances for Electrician Trade. The questions are likely designed to test a user’s knowledge or understanding of electrical concepts and may be useful for exam preparation or self-assessment. The website may be a helpful resource for individuals studying to become electricians or seeking to improve their understanding of electrical principles.

HOME APPLIANCES

Which material is used to make heating element?SilverCopperNichromeAluminium

What is the name of the part of electric iron?

Sole platePressure plateMica insulationAsbestos sheet

What is the function of stirrer motor in microwave oven?Draws cooling air insideSpreads the heat uniformlyExhausts the hot air outsideRevolves and reflects the electromagnetic energy

What is the purpose of U bend marked as X in geyser?

Prevents draining of waterAvoids the forming of scalesReduces the pressure of outlet pipeRestricts the air locking inside the tank

Which type of A.C single phase motor is used in food mixer?Universal motorRepulsion motorSplit phase motorShaded pole motor

Which is the position for maximum output of the heater?

Position 1Position 2Position 3Position 4

Which formula is used to calculate the heat generated as per Joules law?Heat generated = IRT / J calHeat generated = |2RT /JcalHeat generated = IR2T/JcalHeat generated = (IR)2 T/Jcal

Calculate the heat generated in a electric heater of 1000 watt, 240 volt, worked for 5 minutes?70.5 kilo calories71.0 Kilo calories71.6 Kilo calories72.1 Kilo calories

What is the purpose of protection grooves at various places in a heater base plate?Radiate the heat properlyRetain the heating element firmlyPlace the vessels firmly on heater plateProtect the heating element from damage

What is the purpose of sole plate in electric kettle?Acts as a balancing weightActs as an insulator for elementProtect the kettle base from damageKeep the element in close contact with container

What is the magnetron tube filament voltage used in microwave oven?1.5 V A.C2.0 V A.C3.0 V A.C3.2 V A.C

What is the fault in a food mixer if it runs intermittently?Worn out brushesArmature coil openDefective commutatorField winding partially short

What is the defect in a single phase pump motor if it runs with slow speed?Defective capacitorOpen starting windingShort in starting windingShort in running winding

What is the function of neutral path in AC supply system for appliances?Provides current return pathProvides level constantReduces voltage drop in wiringMaintains load current constant

What is the function of magnetron tube in a microwave oven?Amplifies the microwave signalChanges the polarity every half cycleOscillate and produce cooking frequencyConverts microwave energy to electrical energy

Which type of motor is used in the wet grinder?Universal motorRepulsion motorCapacitor start induction run motorCapacitor start capacitor run motor