Science and Technology - General Knowledge Questions

1 .

Communication by touch is called

Proxemics communication

Semantics communication

Chronemics communication

Haptics communication

Correct Answer : Haptics communication

Communication by touch is called Haptics communication and the study of this is called as Haptics.

2 .

Cold foods should be kept at a temperature of

< -18 deg Celcius

< 5 deg Celcius

> 18 deg Celcius

> 41 deg Celcius

Correct Answer : < 5 deg Celcius

To reduce the risk of bacterial contamination, many foods must be stored in the refrigerator and thus kept below 5 degrees Celsius. These foods are often classified as ‘high-risk foods’ and include – meat, poultry, dairy, seafood, eggs, smallgoods and cooked rice and pasta. This also refers to ready-to-eat foods that have high-risk foods as ingredients and include – casseroles, quiche, pasta salad, pizza, sandwiches and many cakes.

By keeping these high-risk foods under 5 degrees Celsius it stops them from entering the ‘danger-zone’ – temperatures between 5 degrees Celsius and 60 degrees Celsius. The danger-zone is the temperature zone which provides bacteria with the perfect environment to rapidly grow and multiply to numbers that cause food poisoning.

3 .

What is the resolution of the human eye?

576 MP

488 MP

360 MP

285 MP

Correct Answer : 576 MP

According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels. That's huge when you compare it to the 12 megapixels of an iPhone 7's camera.

4 .

What is the major source of dietary sulfur?

Mineral salts

Carbohydrates

Proteins

All of the above

Correct Answer : Proteins

Protein cantaining foods are the major source of dietary sulfur. Foods like eggs are rich in sulfur content.

5 .

All the organisms on your campus make up

a community

a group

an ecosystem

None of the above

Correct Answer : a community

All the organisms on your campus make up a community, as a community is defined as living organisms in a given area.

6 .

The monosaccharides important in nutrition are

Galactose

Glucose

Fructose

All of the above

Correct Answer : All of the above

There are 3 monosaccharides important in nutrition. They are Glucose, Galactose and Fructose.

7 .

Major fructose sources include

milk and cheese

beer and liquor

breads and cereals

fruits and honey

Correct Answer : fruits and honey

The highest dietary sources of fructose, besides pure crystalline fructose, are foods containing table sugar (sucrose), high-fructose corn syrup, agave nectar, honey, molasses, maple syrup, fruit and fruit juices, as these have the highest percentages of fructose (including fructose in sucrose) per serving compared to...

8 .

The largest region of the brain is the

Cerebellam

Cerebrum

Medullaoblangata

None of the above

Correct Answer : Cerebrum

Cerebrum : is the largest part of the brain and is composed of right and left hemispheres. It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement. Cerebellum: is located under the cerebrum.

9 .

Which macronutrient is vital for every function of the body?

Proteins

Fats

Water

Carbohydrates

Correct Answer : Water

The macronutrient water is the most essential nutrient which plays a vital role in every function of the body. Macronutrients are those nutrients that are required in excess amounts for the development and functioning of the body.

10 .

Cuscuta is an example of

Predation

Brood parasitism

Endoparasitism

Ectoparasitism

Correct Answer : Ectoparasitism