Science and Technology - General Knowledge Questions

1 .

Which of the following is not a sedimentary structure?

Mud cracks

Magma emplacement

Cross beds

Ripple marks

Correct Answer : Magma emplacement

sedimentary features all are related to water deposited minerals and rocks.

Which of your choices has nothing to do with water is not a sedimwntary structure. Here in the given choices Magma emplacement is not a sedimentary structure.

2 .

Which gymnospermic plant cures rheumatism?

Pinus

Ephedra

Araucaria

Gnetum

Correct Answer : Gnetum

Oil from Gnetum spp a gymnosperm belonging to the family Gnetaceae is used to relieve the effects of rheumatism

The lianas and shrubs of Gnetum are found in the rain forests of the western ghats.

3 .

Which of the following is not a macronutrient?

Chlorine

Calcium

Proteins

Carbohydrates

Correct Answer : Chlorine

Nutrients that are needed in large amounts are called Macronutrients.

There are three macronutrients required by humans :

1. carbohydrates (sugar),

2. lipids (fats), and

3. proteins.

Each of these macronutrients provides energy in the form of calories.
Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).

4 .

Glucose is stored in the human body as

Glycogen

Cellulose

Sucrose

None of the above

Correct Answer : Glycogen

Insulin helps glucose enter the body's cells to be used for energy. If all the glucose is not needed for energy, some of it is stored in fat cells and in the liver as glycogen. As sugar moves from the blood to the cells, the blood glucose level returns to a normal between-meal range.

5 .

Galaxy named after Greek princess

Whirlpool

Cygnus

Andromeda

Messier

Correct Answer : Andromeda

Andromeda Galaxy is the galaxy named after Greek princess Andromeda.

6 .

Speed of laser printer is measured in

CPM

PPM

DPI

LPM

Correct Answer : PPM

Now a days, printers we are using are called as laser printers. The speed of a laser printer is measured in PPM i.e, Pages Per Minute.

Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image.

Compared to inkjet printers which use ink for printing laser printers are more expensive as they use toner which lasts for long.

7 .

Which is faster Light or Sound?

Light

Sound

Both are same

Can't be determined

Correct Answer : Light

Light :

1. Light doesn't require a medium to travel.

2. It travels in the vaccum with the speed of 1,86,000 miles per second.

Sound :

1. Sound rquire a medium.

2. It travels in the Air with the speed of 340 meters per second.

3. It travels Faster in Water than in Air.

4. It travels Faster in Steel than in Water.

8 .

Which layer of the atmosphere contains the ozone layer?

Mesosphere

Thermosphere

Stratosphere

Troposphere

Correct Answer : Stratosphere

The ozone layer is a region of Earth's Stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.

The Atmosphere is divided into 4 layers according to major changes in temperature. They are :

1. Troposphere,

2. Stratosphere,

3. Mesosphere and

4. Thermosphere.

The farther away from earth, the thinner the atmosphere gets.

9 .

The amount of water vapour in the air is called...?

humidity

Correct Answer : humidity

The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity.

10 .

Study of fishes is called

Phylumology

Ichthyology

Amphiology

Zoology

Correct Answer : Ichthyology

The study of fishes is known as Ichthyology. Most museum ichthyologists work on taxonomy (classification and the description of new species) and biogeography (patterns of distribution).