[CSP] Test PT19ST15 – Science & Technology

#1. Consider the following statements about the PayTM and BHIM Unified Payment Interface apps:

1. PayTM is a sort of an e-wallet.

2. BHIM allows bank-to-bank transfers.

3. Both the apps have been developed by the National Payments Corporation of India.

4. There is no monthly upper limit on transferring any amount, however large, through PayTM.

Which of the above statements is/are correct?

(a) 1 and 2 only

(b) 1, 2 and 3 only

(c) 2, 3 and 4 only

(d) 1, 2, 3 and 4

#2. Artificial Intelligence, which is frequently in news, can find application in

1. Weather forecasting

2. Traffic management

3. Healthcare

Which of the above statements is/are correct?

(a) 3 only

(b) 2 and 3 only

(c) 1 and 2 only

(d) 1, 2 and 3

#3. Among the following, which one does not belong to the phyla of other three?

(a) Squid

(b) Shrimp

(c) Prawn

(d) Housefly

#4. Certain microbes are called ‘superbugs’ because

(a) of their high rate of prevalence

(b) of their ability of transmission across species

(c) of their resistance to all known lines of treatment

(d) of their long gestation period

#5. Which of the following is/are correctly matched?

1. Cassini – Huygens : Jupiter

2. New Horizons : Neptune

3. Dawn : Saturn

Select the correct answer using the codes given below.

(a) 3 only

(b) 1 and 2 only

(c) 2 only

(d) None

#6. Some species of which of the following kinds of organisms can act as agent for controlling pests and diseases in agriculture?

1. Bacteria

2. Viruses

3. Fungi

Select the correct answer using the codes given below.

(a) 2 and 3 only

(b) 1 and 3 only

(c) 1 only

(d) 1, 2 and 3

#7. What are ‘Exoplanets’?

(a) large sized asteroids believed to be the remnants of a primitive planet

(b) planets orbiting stars outside the solar system

(c) planets outside the solar system that are habitable

(d) planets orbiting stars in other galaxies

#8. Consider the following statements:

1. Vitamins are involved in producing genetic material.

2. Vitamins do not provide calories.

3. Vitamins assist in breaking down the food.

Which of the above statements is/are correct?

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3

#9. The warming effect of sun rays is due to the

(a) ultra violet part of the sunlight

(b) infrared part of the sunlight

(c) visible part of the sunlight

(d) ultra violent and infrared part of the sunlight

#10. Consider the following statements:

1. Neutrinos are massless particles filling up most of the empty space.

2. They are easy to detect as they can be deflected even by weak forces like gravity.

Which of the above statements is/are correct?

(a) 1 only

(b) 2 only

(c) Both 1 and 2

(d) Neither 1 nor 2

Solutions:

Ans 1 (a):

If we take a smart guess, then we can ponder that it is unlikely that there shall be no upper limit on monthly transfer in PayTM. So statements 4 is incorrect. Only BHIM has been developed by NPCI.

Ans 2 (d):

The NITI Aayog has published an ambitious discussion paper on kickstarting the artificial intelligence (AI) ecosystem in India. AI is the use of computers to mimic human cognitive processes for decision-making. The paper talks of powering five sectors — agriculture, education, health care, smart cities/infrastructure and transport — with AI. It highlights the potential for India to become an AI ‘garage’, or solutions provider, for 40% of the world. To pull this off, India would have to develop AI tools for a range of applications: reading cancer pathology reports, rerouting traffic in smart cities, and picking students at high risk of dropping out from school, among them.

There are two instances that farmers can significantly gain from using AI. First, in predicting weather successfully and, therefore guidance, in what to grow and what price they can expect.

Additionally, such tools can help farmers monitor soil health, mine historical weather data including satellite imagery, predict the price of agricultural products and maintain supply-chain efficiency.

Ans 3 (a):

Prawn, Shrimp, Housefly belong to the phyla Arthropoda whereas Squid
belong to Mollusca.

Arthropoda: The body is segmented and has a hard chitinous outer covering
(exoskeleton). Jointed limbs are present. Coelom is reduced. Circulatory
system is open and consists of a dorsal heart. This phylum is the largest of all
and is further divided into four large classes. Examples – Prawn, Shrimp,
cockroach, Butterfly, Housefly, Mosquito, Scorpion, Centipede.

Mollusca: These animals possess a soft un-segmented body without
appendages. Body is covered by a fold of skin called mantle which usually
secrets a shell. They possess a ventral muscular organ called foot for
locomotion. Examples – Squid, Cuttlefish, Limpet, Slug, Mussel.

Ans 4 (c):

“Superbugs” is a term used to describe strains of bacteria that are resistant to
the majority of antibiotics commonly used today.

Ans 5 (d):

Cassini–Huygens is an unmanned spacecraft sent to the planet Saturn.

New Horizons is an interplanetary space probe that was launched as a part
of NASA‘s New Frontiers program. The spacecraft was launched with the
primary mission to perform a flyby study of the Pluto system, and a secondary
mission to fly by and study one or more other Kuiper belt objects.

Dawn is a space probe launched by NASA in September 2007 with the mission
of studying Vesta and Ceres (asteroids).

Ans 6 (d):

Biopesticides can be considered as falling into three main categories:
Microbial pesticides consist of a microorganism (e.g., a bacterium, fungus,
virus or protozoan) as the active ingredient. Microbial pesticides can control
many different kinds of pests, although each separate active ingredient is
relatively specific for its target pest[s]. For example, there are fungi that

control certain weeds, and other fungi that kill specific insects.
Plant-Incorporated-Protectants (PIPs) are pesticidal substances that plants
produce from genetic material that has been added to the plant. For example,
scientists can take the gene for the Bt pesticidal protein, and introduce the
gene into the plant’s own genetic material. Then the plant, instead of the Bt
bacterium, manufactures the substance that destroys the pest.
Biochemical pesticides are naturally occurring substances that control pests
by non-toxic mechanisms. Conventional pesticides, by contrast, are generally
synthetic materials that directly kill or inactivate the pest. Biochemical
pesticides include substances, such as insect sex pheromones, which interfere
with mating, as well as various scented plant extracts that attract insect pests
to traps.

Ans 7 (b):

Ans 8 (d):

Vitamins are complex chemical substances contained mainly in food. They
enable the body to break down and use the basic elements of food, proteins,
carbohydrates and fats. Certain vitamins are also involved in producing blood
cells, hormones, genetic material and chemicals in your nervous system.
Unlike carbohydrates, proteins and fats, vitamins and minerals do not provide
calories. However, they do help the body to use the energy from food.

Ans 9 (b):

Ans 10 (d):

They do have mass. And they are not easy to detect that’s why underground
observatories with all the paraphernalia.

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