1.
Which electrical appliance is used for heating food quickly?
Correct Answer
A. Microwave
Explanation
A microwave is an electrical appliance designed for quickly and efficiently heating and cooking food. It uses microwaves, which are electromagnetic waves, to produce heat by agitating water molecules within the food. Unlike traditional ovens or stovetops, microwaves heat food from the inside out, allowing for rapid and uniform heating.
2.
Which electrical appliance is used for cooling a room?
Correct Answer
A. Air conditioner
Explanation
Air conditioners are specifically designed to cool the air and regulate temperature within a room or space. By continuously cycling through these processes, an air conditioner effectively removes heat from the indoor air, providing a cooler and more comfortable environment. Air conditioners are commonly used in homes, offices, and various buildings to maintain a desired temperature and humidity level.
3.
Which electrical appliance is used for washing clothes?
Correct Answer
B. Washing machine
Explanation
Washing machines come in various types, including top-loading and front-loading machines, each with its own set of features and advantages. They are a staple in households worldwide, making laundry tasks more convenient and less time-consuming.
4.
Which electrical appliance is used for grinding spices?
Correct Answer
D. Grinder
Explanation
Grinders are specially designed to effectively grind and pulverize spices, grains, or other ingredients. This appliance is particularly popular for those who prefer using whole spices for cooking, as it enhances the flavor and aroma of dishes. Spice grinders offer convenience and precision in grinding various spices, such as peppercorns, cumin, coriander, and more, ensuring a burst of flavor in culinary preparations.
5.
Which electrical appliance is used for preserving food at low temperatures?
Correct Answer
C. Freezer
Explanation
The electrical appliance used for preserving food at low temperatures is the Freezer. It maintains a temperature below the freezing point of water, which helps to slow down the bacterial growth and preserve the food for longer periods. Other appliances like Microwave, Toaster, and Oven are used for cooking or heating food, not for preserving it.
6.
Which electrical appliance is used for amplifying sound?
Correct Answer
C. Speaker
Explanation
The electrical appliance used for amplifying sound among the options you provided is the Speaker. Speakers take the electrical signals and convert them into sound waves, effectively amplifying the sound.
7.
Which electrical appliance is used for grinding coffee beans?
Correct Answer
D. Coffee grinder
Explanation
The electrical appliance used for grinding coffee beans is a Coffee Grinder. It comes in two main types: blade grinders, which chop the beans with spinning blades, and burr grinders, which grind the beans between a pair of revolving abrasive surfaces.
8.
Which electrical appliance is used for ironing clothes?
Correct Answer
D. Iron
Explanation
The electrical appliance used for ironing clothes is an Iron. It uses heat to remove wrinkles from fabric, and is a common household appliance.
9.
Which electrical appliance is used for blending fruits and vegetables?
Correct Answer
C. Blender
Explanation
Blenders are used to mix, puree, or emulsify fruits, vegetables, or other ingredients into a smooth consistency, often for the preparation of smoothies or soups. It uses high-speed rotating blades to puree, chop, mix, or liquefy food.
10.
Which electrical appliance is used for preserving food at cool temperatures?
Correct Answer
C. Refrigerator
Explanation
The electrical appliance used for preserving food at cool temperatures is a Refrigerator. It slows down the bacterial growth, thus preserving the freshness of the food for a longer period.