Table of Contents
Day-626
Quiz-summary
0 of 5 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
Information
DAILY MCQ
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 5 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- Answered
- Review
-
Question 1 of 5
1. Question
1. Consider the following statements:
Statement I: Autoclaved Aerated Concrete (AAC) blocks are lightweight concrete building materials.
Statement II: AAC blocks have a high compressive strength and are resistant to fire and pests.
Which one of the following is correct in respect of the above statements?Correct
Answer: B
Explanation
Statement 1 is correct: AAC blocks are lightweight, precast concrete building materials that contain millions of small, evenly distributed air pockets. These air pockets result from the addition of aluminum powder during the manufacturing process, which reacts with lime and cement to form hydrogen gas, creating the aerated structure.
Statement 2 is correct: AAC blocks possess high compressive strength, making them suitable for load-bearing applications in construction. Additionally, they exhibit excellent fire resistance due to their inorganic composition and are not susceptible to damage from pests such as termites.
Thus, both statements are correct but there is no correlation as to statements 2 is explaining the statement 1.Incorrect
Answer: B
Explanation
Statement 1 is correct: AAC blocks are lightweight, precast concrete building materials that contain millions of small, evenly distributed air pockets. These air pockets result from the addition of aluminum powder during the manufacturing process, which reacts with lime and cement to form hydrogen gas, creating the aerated structure.
Statement 2 is correct: AAC blocks possess high compressive strength, making them suitable for load-bearing applications in construction. Additionally, they exhibit excellent fire resistance due to their inorganic composition and are not susceptible to damage from pests such as termites.
Thus, both statements are correct but there is no correlation as to statements 2 is explaining the statement 1. -
Question 2 of 5
2. Question
2. With reference to the “Deep Web,” consider the following statements:
1. It refers to the vast portion of the internet that is not indexed by search engines.
2. Specialized software like Tor is commonly used to access the Deep Web and ensure user anonymity.
3. It also includes legal content such as private social media profiles and password-protected websites.
How many of the above statements are correct?Correct
Answer: C
Explanation
Statement 1 is correct: The Deep Web consists of web pages and content not indexed by traditional search engines, making it not publicly accessible.
Statement 2 is correct: Specialized software like Tor is commonly used to access the Deep Web, providing anonymity to users.
Statement 3 is correct: While the Deep Web does host illicit activities, not all activities are illegal, and it includes legitimate platforms, private databases like social media profiles and password protected websites.
Deep Web vs Dark Web
The Deep Web is primarily designed to keep things private, but Deep Web sites typically aren’t anonymous. The Dark Web is designed to be anonymous, which makes it a better fit for illegal activities than the Deep Web.Incorrect
Answer: C
Explanation
Statement 1 is correct: The Deep Web consists of web pages and content not indexed by traditional search engines, making it not publicly accessible.
Statement 2 is correct: Specialized software like Tor is commonly used to access the Deep Web, providing anonymity to users.
Statement 3 is correct: While the Deep Web does host illicit activities, not all activities are illegal, and it includes legitimate platforms, private databases like social media profiles and password protected websites.
Deep Web vs Dark Web
The Deep Web is primarily designed to keep things private, but Deep Web sites typically aren’t anonymous. The Dark Web is designed to be anonymous, which makes it a better fit for illegal activities than the Deep Web. -
Question 3 of 5
3. Question
3. With reference to bisphenol, consider the following statements:
1. It is commonly used in the production of thermal paper used for receipts.
2. It is a type of naturally occurring resin found in certain plant species.
3. Bisphenol exposure has been associated with potential health risks, including endocrine disruption.
How many of the above statements are correct?Correct
Answer: B
Explanation
Statement 1 is correct: Bisphenol is commonly used in the production of thermal paper, including that used for receipts. The glossy part of the paper is coated with Bisphenol A (BPA) which is heat sensitive and produces text without the use of ink.
Statement 2 is incorrect: Bisphenol is not a naturally occurring resin; it is a synthetic chemical compound.
Statement 3 is correct: Exposure to bisphenol has indeed been associated with potential health risks, including endocrine disruption.
About Bisphenol
Bisphenol refers to a class of chemical compounds that contain two phenol functional groups. These compounds are characterized by the presence of two hydroxyphenyl groups connected by a bridge, often consisting of carbon or another element. One well-known member of the bisphenol family is Bisphenol A (BPA).
BPA is commonly used in the production of polycarbonate plastics and epoxy resins. Polycarbonate plastics are used in numerous consumer products, such as water bottles, food storage containers, and eyeglass lenses. Epoxy resins are used as coatings on the inside of food and beverage cans, among other applications.
It’s important to note that while bisphenols have various industrial applications, concerns have been raised about the potential health effects of exposure to certain bisphenols, particularly BPA. BPA, in particular, has been studied for its potential endocrine-disrupting properties, as it can mimic the action of the hormone estrogen in the body. As a result, there have been efforts to limit BPA exposure in certain products, leading to the development and use of BPA-free alternatives.Incorrect
Answer: B
Explanation
Statement 1 is correct: Bisphenol is commonly used in the production of thermal paper, including that used for receipts. The glossy part of the paper is coated with Bisphenol A (BPA) which is heat sensitive and produces text without the use of ink.
Statement 2 is incorrect: Bisphenol is not a naturally occurring resin; it is a synthetic chemical compound.
Statement 3 is correct: Exposure to bisphenol has indeed been associated with potential health risks, including endocrine disruption.
About Bisphenol
Bisphenol refers to a class of chemical compounds that contain two phenol functional groups. These compounds are characterized by the presence of two hydroxyphenyl groups connected by a bridge, often consisting of carbon or another element. One well-known member of the bisphenol family is Bisphenol A (BPA).
BPA is commonly used in the production of polycarbonate plastics and epoxy resins. Polycarbonate plastics are used in numerous consumer products, such as water bottles, food storage containers, and eyeglass lenses. Epoxy resins are used as coatings on the inside of food and beverage cans, among other applications.
It’s important to note that while bisphenols have various industrial applications, concerns have been raised about the potential health effects of exposure to certain bisphenols, particularly BPA. BPA, in particular, has been studied for its potential endocrine-disrupting properties, as it can mimic the action of the hormone estrogen in the body. As a result, there have been efforts to limit BPA exposure in certain products, leading to the development and use of BPA-free alternatives. -
Question 4 of 5
4. Question
4. Consider the following statements about liposomes:
1. They are microscopic spheres made from a special type of peptide molecule.
2. Their hollow structure allows them to encapsulate drugs or other substances for targeted delivery within the body.
Which of the statements given above is/are correct?Correct
Answer: B
Explanation
Statement 1 is incorrect: Liposomes are microscopic spheres made from a special type of fat molecule. These molecules usually form a lipid bilayer (and not peptide), creating a hollow sphere-like structure. Moreover, elasticity of lipid molecules helps in creating smaller sacs which is absent in case of peptide molecules.
Statement 2 is correct: The hollow structure of liposomes allows them to encapsulate drugs or other substances. This property makes them useful in medicine for targeted drug delivery within the body. The liposomes can carry the therapeutic payload to specific tissues or cells, improving the effectiveness of the treatment while minimizing side effects.Incorrect
Answer: B
Explanation
Statement 1 is incorrect: Liposomes are microscopic spheres made from a special type of fat molecule. These molecules usually form a lipid bilayer (and not peptide), creating a hollow sphere-like structure. Moreover, elasticity of lipid molecules helps in creating smaller sacs which is absent in case of peptide molecules.
Statement 2 is correct: The hollow structure of liposomes allows them to encapsulate drugs or other substances. This property makes them useful in medicine for targeted drug delivery within the body. The liposomes can carry the therapeutic payload to specific tissues or cells, improving the effectiveness of the treatment while minimizing side effects. -
Question 5 of 5
5. Question
5. Consider the following statements regarding “feathering”, a term recently seen in the news:
1. It is a technique used in aircraft maneuvering during engine failure or shutdown to reduce drag and increase gliding distance.
2. It involves changing the pitch or angle of the propeller blades to align them parallel to the airflow.
Which of the statements given above is/are correct?Correct
Answer: C
Explanation
Statement 1 is correct: Feathering is indeed a technique used in aircraft maneuvering during engine failure or shutdown to reduce drag and increase gliding distance. This is achieved by adjusting the pitch or angle of the propeller blades.
Statement 2 is correct: Feathering involves changing the pitch or angle of the propeller blades to align them parallel to the airflow. This reduces the drag on the propeller, allowing the aircraft to glide more efficiently.Incorrect
Answer: C
Explanation
Statement 1 is correct: Feathering is indeed a technique used in aircraft maneuvering during engine failure or shutdown to reduce drag and increase gliding distance. This is achieved by adjusting the pitch or angle of the propeller blades.
Statement 2 is correct: Feathering involves changing the pitch or angle of the propeller blades to align them parallel to the airflow. This reduces the drag on the propeller, allowing the aircraft to glide more efficiently.
