Explore topic-wise InterviewSolutions in Current Affairs.

(i) Dish TV, Reliance BIG TV and Airtel digital TV. 

(ii) A Set-Top Box (STB) is an information appliance device.

Set-Top Box (STB) It is an electronic device that generally contains a tuner card and connects to a television set as an external source of signal, turning the source signal into a content form that can be displayed on the television screen or other display device. It is also known as Set-Top Unit (STU). It is a device that enables a television set to become a user interface to the Internet.

 Multi-Purpose Entertainment Devices These devices are used to play videos, listening to music and radio, play video games and much more through a single device, e.g. iPad, iPod, Tablets, PCs, X-Box gaming console etc.

The X-Box gaming console is a multi-purpose entertainment device.

True An E-mail is having many features such as receiving, sending and storing electronic messages and it has gained universal popularity also, which makes it possible to be preferred for both personal and business communication.

The impact of technological convergence in our daily life can be best exemplified with mobile phones. 

Apart from the basic purpose of mobile telephone, the latest cellphones support multiple features like: 

(i)  Internet and E-mail access. 

(ii) Multimedia applications like music/video playback and playing games. 

(iii)  Sending messages. 

(iv)  Audio and video conferencing. 

(v)  Camera for images and videos. 

(vi)  Providing maps for finding locations. 

(vii) Basic computer applications like creating documents, presentations, calendar, calculator, dictionary etc. 

(viii) The incorporation of all these technologies into a single device has led to the emergence of smart phones, which eliminates the need to carry multiple devices.

E-mail is the method used for exchanging digital messages.

(d) any or all of the above

Computer technology is the activity of designing, constructing and programming of the computer system while communication technology is the activity of designing, constructing and maintaining communication system.

(d) Bringing change in the Internet technology does not belong to technological convergence as technological convergence is just the combination of three types named communication technology, computer technology and content technology.

(i) Computer is an electronic device used to process and transfer data between the devices attached with it. 

(ii) E-mail, i.e. electronic mail is a system for receiving, sending and storing electronic messages using Internet. 

(iii) She can send E-mail through Internet.

(d) E-Business is a service provided by convergent technologies

(b) Cooking of vegetables

To make the convergence technology possible, high-bandwidth networks, high-speed Internet access, compression of software and hardware that combines one or more technologies and takes advantages of the new methods of connectivity are required.

(a) Media convergence is basically interlocking of computing and information technology companies as it is known to bring together the “3Cs”.

Convergence of technology is the interaction of two or more different technologies in a single device or system.

(d) Melting of wax

Communication technology is used to send and receive the signals of various devices such as radio, television, telephone or satellite from one location to another.

False 

Mobile phones are not just used for making calls but it can also be used for many other works such as using Internet, making video conferencing, paying the bills etc.

 Conventional radio is broadcast using transmitters at fixed locations.

False 

The convergence of Internet technology that has not led to a new technology term-ICT.

When a candle bums, both physical and chemical changes occur:

• Physical change: melting of wax, vapourisation of melted wax.
• Chemical change: Burning of vapours of wax to give carbon dioxide, heat and light.

LPG is another example in which physical change occurs when LPG comes out of cylinder and is converted from liquid to gaseous state and a chemical change occurs when gas bums in air.

(a) Chemical change

(b) Physical change

(c) Chemical change

(d) Physical change

(e) Physical change

(f) Chemical change

Overloading can occur when the live wire and the neutral wire come into direct current (This occurs when the insulation of wires is damaged or there is a fault in the appliance) In such a situation, the current in the circuit abruptly increases. This is called short-circuiting.

VoIP technology lets you use the Internet to make and receive telephone calls.

False 

It is not necessary that every Internet enabled smartphone is developed by Microsoft, there are many Internet enabled smartphones developed by other companies also.

 Windows media center is a digital video recorder and media player developed by Microsoft.

(a) Reaction between copper sulphate solution and iron metal.
(b) Reaction between baking soda and vinegar (carbon dioxide is evolved).
(c) Burning of crackers.

For earth wire, green or yellow colour insulation is used. The earth wire provides the low resistance conducting path for the current and maintains the potential of appliances body with that of the earth. So, earth wire is used as a safety measure.

(a) Yes, rust is quite different from iron.
(b) No.
(c) Yes, it is a chemical change.
(d) (i) Setting of curd from milk. (ii) Burning of magnesium ribbon to form magnesium oxide.

Sometimes, the insulation of live wire is torn and due to this, the live wire touches the metallic body of the appliances. This causes the flow, of current in a metallic body. This current flows to the Earth through the earth wire and does not harm the use- of the appliances. Therefore, to prevent the user getting an electric shock, due to leakage of current to metallic body, Earth wire must always be used.

Content technology is helpful in mixing the text, sound, graphics, video, animation etc.

No, electricity theft is not good. 

Proper connection, billing, safety measure can save both property and life which is more precious. 

Associated Value: The learners will be able to appreciate the role of being a responsible citizen and not to involve in any unlawful and risky events like electricity theft etc.

Air is a gas, it has more space in between particles. But solid block of wood is rigid, hence it is difficult to move our hands through it.

Because in the gaseous state, the particles move about randomly at high speed. Due to this random movement, the particles hit each other and also the walls of the container. The pressure exerted by the gas is because of this force exerted by gas particles per unit area on the walls of the container.

At low temperatures, there is less kinetic energy associated with the particles of matter. Therefore, the particles only vibrate in their positions. Since the energy from surroundings is not able to break the bond or force of attraction between the particles, the particles tend to be in a solid state with distinct boundaries and fixed volume.

Because in the wooden table particles are closely packed and have less space in between particles.

The first time Holmes felt wry of the story when the American Garrideb was angry at Nathan to have involved a detective. When Sherlock noticed the Garrideb in English appearance and he pointed it out to him that how come that he was an American and yet was dressed so English. The American said that he was a lawyer in Kansas, Holmes made his bait by pointing out to a unreal late Dr. Lysander Starr, who Holmes said to be a Mayor in 1830. and as he had suspected, Garrideb fell for it, he reciprocated by saying that good old Dr. Starr's name was still honoured. Holmes was then sure that as he had suspected, Garrideb was never a lawyer in Kansas. Holmes grew sure of that the story of Alexander Garrideb was made up by John Garrideb when he brought an advertisement published in a local paper of Birmingham that was from some Howard Garrideb. Holmes and Watson both noticed the written piece to have been in American English and they concluded that the piece was published in the paper by Garrideb himself to set Nathan off to Birmingham to buy time so he can intrude in his room without any disturbance.

BritishAmericanAmongstAmongColourColorDefenceDefensePretencePretense

with a fine-toothed comb: To investigate minutely 

putting up a bird: 

a cock pheasant: 

bolt-hole: A place of escape or refuge 

castle in the air: A fantasy

The errors, to say, that gave away the fact that the advertisement was placed by John Garrideb, or an American.

By lowering temperature, the energy of surroundings become less than that of the gaseous particles. Then there is a transfer of energy from gas to the surroundings. Thus the gas molecules lose energy and get converted to a liquid state.

By raising pressure, the particles of gas come closer and closer and get converted to a liquid state.

The story's wittiest character is the detective Sherlock Holmes whose digressions are most funny. How in the middle of a sensitive interrogation he points out to the suspect that he appears to be a English, though the suspect exclaims that he is an American. In the beginning when Holmes is explaining the case to Watson, he remarks that there is a chance to make money with this case as if it is they and not the Garridebs who will be given the inheritance Alexander Garrideb. The most interesting part is the style with which Holmes talks or discusses any information. Even while explaining a serious matter he adapts a casual style. For example, again while in the beginning Holmes is explaining the case to Watson, he did not give away the people already involved in the case. However, he tells that Nathan is already taken in as Watson comes across his name in the directory. He did not even tell the name of the mastermind John Garrideb until Mrs. Hudson approached with the card signed by Garrideb. There are many such instances that make the mystery light-hearted and the reader is not burned by it.

I think I sympathize with the astrologer. He did not try to intentionally kill Guru Nayak; it had happened in the heat of the moment. Of course, he should not have tried to run away but should have accepted responsibility for his crime. However, he is genuinely sorry for what had happened. 

His words ‘a great load is gone from me today. I thought I had the blood of a man on my hands all these years’ indicates this. Hence, I sympathize with him and am happy that he can now live in peace.

Lanthanide contraction occurs in the lanthanide series of inner transition metals. basically it the contraction (decrease) of atomic radii/ionic radii greater than as expected. This is due to the poor shielding at nuclear charge by 4f electrons.

6s electron re drawn towards the nuclues, thus resulting in smaller atomic radius.

This phenomena is called lanthanide contraction.

1. Reason : Some chemical substances are used to alter the speed of a chemical reaction. Example : metallic iron is used as a catalyst in the manufacture of ammonia.

2. Reason : Brine is electrolysed to produce chlorine and hydrogen gases along with sodium hydroxide. Such reactions are called as electrolysis.

3. Reason : Most of the earth’s ozone is contained in the stratosphere, a layer of the atmosphere 10 – 40 km above the surface of the earth.

4. Reason : The UV rays from the sun break ozone (O₃ molecules in the stratosphere into oxygen and atomic oxygen.

The rotting of fruit is a chemical reaction. It's not a physical change. Because an enzymatic reaction causes molecules to change when rotting.

1. e 

2. c 

3. d 

4. b 

5. a

1. Rain becomes acidic in nature due to the presence of certain pollutants in the air released by cars and industrial processes. 

2. Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide which react with the water molecules in the atmosphere.

No. Rusting is not good for iron materials. Rust is a form of iron oxide. It occurs when iron combines with the oxygen in the air causing it to corrode. Rust can affect iron and its alloys. It makes them weaker, by replacing the strong iron with flaky powder.