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Daily Quiz: February 7, 2019
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- Question 1 of 7
1. Question
1 pointsCategory: Science and TechnologyWhich of the following are used as common adulterants in milk?
- Detergent
- Hydrogen peroxide
- Urea
- Starch
Select the correct answer using the code given below.
Correct
All are used in adulteration of milk.
“Adulterant” means any material which is or could be employed for making the food unsafe or sub-standard or misbranded or containing extraneous matter.
Adulterated food is dangerous because it may be toxic and can affect health and it could deprive nutrients essential for proper growth and development.
Incorrect
All are used in adulteration of milk.
“Adulterant” means any material which is or could be employed for making the food unsafe or sub-standard or misbranded or containing extraneous matter.
Adulterated food is dangerous because it may be toxic and can affect health and it could deprive nutrients essential for proper growth and development.
- Question 2 of 7
2. Question
1 pointsCategory: Science and TechnologyWhich among of the following is/are incorrect about the concept of ‘Botnet’ and ‘Malware’?
- Botnet is an example of Local Area Network while Malware is a malicious software.
- A Botnet is a computer security programmme that removes malware.
- A computer infected with a malware cannot be used in a Botnet.
Select the correct answer using the codes given below.
Correct
All the statements are incorrect.
A botnet is an interconnected network of computers infected with malware without the user’s knowledge and controlled by cybercriminals. They’re typically used to send spam emails, transmit viruses and engage in other acts of cybercrime. Sometimes known as a zombie army, botnets are often considered one of the biggest online threats today.
Malware, also known as “malicious software,” can be classified several ways in order to distinguish the unique types of malware from each other. Distinguishing and classifying different types of malware from each other is important to better understanding how they can infect computers and devices, the threat level they pose and how to protect against them.
A computer infected with a malware can be used in a Botnet.
Incorrect
All the statements are incorrect.
A botnet is an interconnected network of computers infected with malware without the user’s knowledge and controlled by cybercriminals. They’re typically used to send spam emails, transmit viruses and engage in other acts of cybercrime. Sometimes known as a zombie army, botnets are often considered one of the biggest online threats today.
Malware, also known as “malicious software,” can be classified several ways in order to distinguish the unique types of malware from each other. Distinguishing and classifying different types of malware from each other is important to better understanding how they can infect computers and devices, the threat level they pose and how to protect against them.
A computer infected with a malware can be used in a Botnet.
- Question 3 of 7
3. Question
1 pointsCategory: Science and TechnologyWhich of the following statements is/are correct about Neutrinos?
- It is a subatomic particles with an electric charge.
- It is produced by the decay of radioactive elements.
Select the correct answer using the code given below.
Correct
Statement 1 is incorrect. Neutrinos have zero electric charge.
Statement 2 is correct. Neutrinos are subatomic particles produced by the decay of radioactive elements
Incorrect
Statement 1 is incorrect. Neutrinos have zero electric charge.
Statement 2 is correct. Neutrinos are subatomic particles produced by the decay of radioactive elements
- Question 4 of 7
4. Question
1 pointsCategory: Science and TechnologyWhich of the following are Macronutrients for plants:
- Magnesium
- Phosphorous
- Manganese
- Calcium
- Sulfur
- Molybdenum
Select the correct answer using the codes given below.
Correct
Macronutrients constitute Nitrogen (N), Phosphorous (P), Potassium (K), Calcium (Ca), Sulfur (S), Magnesium (Mg).
Incorrect
Macronutrients constitute Nitrogen (N), Phosphorous (P), Potassium (K), Calcium (Ca), Sulfur (S), Magnesium (Mg).
- Question 5 of 7
5. Question
1 pointsCategory: Science and TechnologyIn India, BT Cotton was used on a wide scale from 2002. Over a decade now, the positives and negatives are properly documented. With reference to this identify which of the following are the major drawbacks/negatives of BT Cotton?
Correct
BT Cotton Gene CRY1ac has been taken from soil bacterium Bacillus Thuringiensis, which has been inserted into cotton. This gene has been identified to produce a toxin that is potent to many pests. Once this gene is inserted into cotton plants, then we get a cotton plant that fights pests on its own. This reduces the use of Pesticides.
In India, BT Cotton was used on a wide scale from 2002. Over a decade now, the positives and negatives are properly documented.
Negatives
- Bollworm pests that the BT toxin is designed to fight, is becoming BT resistant. This is a major issue, since this scenario was not anticipated and there is virtually no solution as of now to this issue.
- BT toxin is destroying microflora.
- BT plants are not able to produce BT toxin throughout their lifespan
Incorrect
BT Cotton Gene CRY1ac has been taken from soil bacterium Bacillus Thuringiensis, which has been inserted into cotton. This gene has been identified to produce a toxin that is potent to many pests. Once this gene is inserted into cotton plants, then we get a cotton plant that fights pests on its own. This reduces the use of Pesticides.
In India, BT Cotton was used on a wide scale from 2002. Over a decade now, the positives and negatives are properly documented.
Negatives
- Bollworm pests that the BT toxin is designed to fight, is becoming BT resistant. This is a major issue, since this scenario was not anticipated and there is virtually no solution as of now to this issue.
- BT toxin is destroying microflora.
- BT plants are not able to produce BT toxin throughout their lifespan
- Question 6 of 7
6. Question
1 pointsCategory: Science and TechnologyWhich of the following statement about hyperelastic bone is correct?
Correct
Hyperelastic Bone or HB is a breakthrough in reconstructive surgery. It is a new synthetic material that can be implanted under the skin as a scaffold for new bone to grow on, or used to replace lost bone matter altogether.
The hyperelastic bone, is made from a naturally occurring mineral called hydroxyapatite. Hydroxyapatite — a form of calcium found in bone and already used in reconstructive surgeries — is extremely brittle, but the researchers mixed it with a polymer to add flexibility. They then 3D print bone graft from this new, promising material and tested it in various experiments.
Incorrect
Hyperelastic Bone or HB is a breakthrough in reconstructive surgery. It is a new synthetic material that can be implanted under the skin as a scaffold for new bone to grow on, or used to replace lost bone matter altogether.
The hyperelastic bone, is made from a naturally occurring mineral called hydroxyapatite. Hydroxyapatite — a form of calcium found in bone and already used in reconstructive surgeries — is extremely brittle, but the researchers mixed it with a polymer to add flexibility. They then 3D print bone graft from this new, promising material and tested it in various experiments.
- Question 7 of 7
7. Question
1 pointsCategory: Science and TechnologyWhich of the following statements is correct?
Correct
India is collaborating with Russia to build Rooppur nuclear power plant in Bangladesh. It will be first initiative under an India-Russia nuclear deal to undertake atomic energy projects in third countries. It will also be India’s first atomic energy venture abroad. Rooppur Nuclear project (capacity of 2*1200 MWs) is Bangladesh’s first atomic energy project. It is being built with Russia’s help near Dhaka. After commissioning of two units each with capacity of 1200 MWs, Bangladesh will be third South Asian country after India and Pakistan to harness atomic energy for energy purpose.
Incorrect
India is collaborating with Russia to build Rooppur nuclear power plant in Bangladesh. It will be first initiative under an India-Russia nuclear deal to undertake atomic energy projects in third countries. It will also be India’s first atomic energy venture abroad. Rooppur Nuclear project (capacity of 2*1200 MWs) is Bangladesh’s first atomic energy project. It is being built with Russia’s help near Dhaka. After commissioning of two units each with capacity of 1200 MWs, Bangladesh will be third South Asian country after India and Pakistan to harness atomic energy for energy purpose.