Explore topic-wise InterviewSolutions in Current Affairs.

Given:- AD = CD = BC

Sol:- Since,  AD = CD = BC so, 

∠CAD = DCA and ∠CDB =  ∠DBC

Let ∠CAD be x° and ∠CDB be y°

In ∆CAD, by exterior angle property

y = 2x ∴ x = y/2 -- (1)

In ∆CAB, by exterior angle property, 

x + y = 96° 

⇒ y/2 + y = 96° (From 1) 

⇒ 3y/2 = 96°

∴ y = 32 × 2 = 64° 

Therefore, ∠DBC is 64°

Profit function is p(x) = 41 - 24x - 6x²

^{\(\therefore p'(x) = -24 - 12x\)} 

& p''(x) = -12 < 0 \(\forall\) x

\(\because\) p'(x) = 0 gives -24 - 12x = 0

⇒ x = 24/-12 = -2

Hence, x = -2 is a critical point of function p(x)

\(\because\) p''(x) = -12

⇒ p"(-2) = -12 < 0

\(\therefore\) Critical point x = -2 is a point of maxima for profit function p(x).

\(\therefore\) Maximum profit = p(-2) = 41 - 24 x -2 - 6 x (-2)²

 = 41 + 48 - 24 = 41 + 24 = 65

Hence, maximum profit that company make is 65.

Oxidation number of chlorine is +5 in ClO₃^-

The change in temperature affects the equilibrium constant, and also the rate of reaction is also affected by the change in temperature. As temperature increases the equilibrium constant of an exothermic reaction decreases. In an endothermic reaction the equilibrium constant increases with an increase in temperature.

The oxidation numbers of chlorine atoms in bleaching powder is -1.

Ans:+2

Take OS of Oxygen be x

OS of Florine is taken as -1 as florine is most electronegative element.
Now the OF₂ molecule is neutral

x + (-1×2) = 0
x - 2=0

x=+2

The oxidation number of fluorine in its compounds is always taken as -1. 

In OF₂ 

X+ (-1 × 2) = 0 

X = +2

We have given,

volume of hydrogen gas = 18 L

Temperature  = 300 k

Pressure of gas = 70 cm Hg

or 700 mm of Hg

or 0.921 atm

R = gas constant = 0.082 L/atm/K/mol

assuming hydrogen gas behaving like ideal gas--

so from ideal gas equation

PV = nRT

n = PV/RT

\(=\frac{0.921 atm\times18L}{0.082 L/atm/K/molx 300 k}\) 

n = 0.674 mol

1. OF₂ : x + (-1 × 2) = 0 

x – 2 = 0 

x = +2 

KO₂ : (+1 × 1) + 2x = 0 

1 + 2x = 0

2x = -1 

x = – \(\frac{1}{2}\)

2. Zn(s) + CuSO₄ (aq) → ZnSO₄ (aq) + Cu(s)

(i) Substance oxidised – Zn 

Substance reduced – Cu 

(ii) Oxidant-Cu 

Reductant – Zn

Technology makes communication faster. Technology affords diverse formats of interaction. Technology brings people of different places closer. We have such a variety now. Now the whole world is a global village. Face Book and WhatsApp connect people in much a bigger way than before. Technology brings relaxation and a relaxed mind is a more competent mind.

1. C. Introducing the purpose of the article—Information about policies and laws for animal protection—Exploring the reasons for the laws— Providing suggestions for peaceful co-existence —Presenting a pledge for awareness 

2. D. creation of more green zones with eco-friendly instructions

3. a. Fragmented, manufacture goods , consume less 

4. b. plastics and its harmful effects 

5. c. make them aware about a global issue 

6. d. I, iii, iv, v

7. b. Plastic accumulating in our oceans and on our beaches has become a global crisis. 

The people today are cut off from the affairs of the world by their technological devices. They do not see or hear anything as they are immersed in a world of their own choice where nothing happens by chance. All technological devices like the satellite radio, cable TV and Cell phone support this world of exclusion so the author says that technology has given us a universe entirely for ourselves.

According to the author, they walk down the street in their own MP3 cocoon, bumping into others, deaf to small social cues, shutting out anyone not in their bubble. Every now and then, some start emitting some strange tuneless sounds and their fingers snap or their twitch some soundless rhythm. When people tell them, ‘Excuse me’ or ‘Hello’, there is no response. They hear so little.

Yes, I have noticed them in my town also. There is some difference between the i-Pod generation in New York and those in my town. Here the i-Pod people do not emit strange tuneless squawks and snap their fingers. Their arms don’t twitch here, as in New York.

1. c. People and saviors 

2. d, 1,3,4 ,5

3. b. Armed forces guard the nation, these warriors guard the people 

4. c. gratitude

5. d. bankers

6. b. migrant labourers, panic

7. c.The smallest act of kindness is worth more than the grandeir intention- Oscar wilde

1. c. Mobile phone- a coin with two faces

2. a. Begin with a striking opening sentence which addresses the readers and gets them interested in the topic

3. c. She must use linking devices ( however, although, nevertheless….)

4. a. Concerned about the physical and mental growth of the children.

5. a. Support her arguments with evidences or elaborating her point of view.

6. a. Coherent way

7. c. I, III,V,VI

Yes. The author has enjoyed the experience of not being a slave to devices the like i-Pod and he seems to be surprised and happy. He realises that the world has a special and interesting rhythm or sound-track of its own and he encourages everyone to listen to it and experience it.

He enjoyed the new experience as he felt connected to others as he became more aware of the world around him.

The author noticed many of the nicer aspects of life when he forgot to take his iPod. He noticed the rhythms of others, the sound of the airplane, the opinions of the taxi driver, and small social cues that he would not notice if he had his iPod.

a. (ii) 3 percent annually

b. (iv)All of the above

c. (ii) Telecom Enforcement Resource and Monitoring

d. (iii)American Cancer Society

(e) There are 40000 towers at present and the growth rate is 3% annually.

(f) The three common health diseases due to radiation are sleep disorder, headache and memory loss and two severe health diseases due to radiation are paralysis and cancer.

(g) The allowed limit of radiation in Austria is 1 milliwatt per square metre and 100 milliwatt per square metre in Russia, China, Italy and Poland.

(h) The ill-effects of radiation faced by the residents of Dadar's Parsi colony was six cases of cancer in the building in a period of just three years.

(i) Telecom Enforcement Resource and Monitoring (TERM) department of telecommunication undertook a study on radiation.

(j) Juhi Chawla protested over radiation effects of cell phone towers.

(k) (i) radiation 

(ii) grievance

The aspect of New York that the author noticed was that its nightlife was very much dead.

a) 

i) Everything else has change with time but students’ strikes have not changed a wee bit.

ii) By “time-pass” students, the author means students who go to college to while away their time and not to study.

(i) A petty issue and just a few “hai hai” calls are sufficient to gather a number of giggling groups that soon turn into a mob.

IV) No, according to the author fee hike was not a valid cause for a protest because it was not “immediate” enough to warrant such a protest. In fact the students had paid the first instalment off the hiked fee a few months ago without a moan.

V It resulted in the loss of valuable teaching time and caused an embarrassment to university authorities. Beside, a few students resorted to self inflicting violence.

IV) The demand of asking for 65% lectures as criterion for examination eligibility. It is ridiculous in the sense that students pay for 100% lectures and is therefore not worth a strike

b) 

(i) Flimsy

(ii) Disparity

(iii) Stipulated

1. b) online learning is a mentor at home

2. a) online learning is the need of the hour 

3. b) learning in safe mode 

4. c) bolt from the blue 

5. a) Unprecedented 

6. c) confined 

7. a) fist 

Committee Sales Organisation Sales Organisation is characterised by dominance of Chairman in the proceedings.

a)

i) Most people are slow readers. But slow reading does not mean better comprehension and retention of the reading matter.

ii) One should read greater number of words in one stop.

iii) A technique called aircraft spotter classes was developed during the Second World War 

(i) What is the difference written material and a drawing or diagram or photograph?

(ii) What is the widely help opinion about reading? 

(iii) Why should fast reading habits be taught early at school?

b) 

(i) Comprehend

(ii) Retain

(iii) Coupled

Correct option: d. Convenience Stores

a. (iii) envious of

b. (iv)A cow wishes to run free with wild horses.

c. (i) aabbcc

d. (iv) chickens

(e) The poet conveys the thought that people often wish for things that others have

(f) The chickens feel that the robin was lucky to be free to fly wherever he wanted to and was able to sing a song when he wanted to.

(i) The farmer closed and latched the door after feeding the chickens so that no predators could attack the chickens.

(ii) The chickens are safe from cats, crows and foxes.

(i) The relationship between hawthorn tree and the robin is most similar to the relationship between the coop and the chickens.

(j) Scoop after scoop / golden grains / woven wire / high and higher

(k) (i) coop

(ii) flinging

Correct option: c. Buck Passing of Responsibility

Correct option: b. Group Manager

a. (iii) melancholy

b. (i) birds hopping and playing

c. (ii) in a grove

d. (ii) birds

e. . Pleasant thoughts of nature bringing sad thoughts to mind.

f. The poet was sad because of the destruction man has caused to nature.

g. abab

h. What man has made of man’.

i. The budding twigs were spreading out their leaves to catch the breeze.

j. The poet has reason to lament because nature’s holy plan is for all plants and animals to be happy, but man has ruined the environment by exploiting it for his selfish needs.

(k) (i) breezy

(ii) budding

Franz was afraid to go to school that day because he had not prepared the test on participles in the least. Mr. M Hamel was a strict teacher. So he was scared of being embarrassed and punished by his teacher.

i) c) Alphonse Daudet 

ii) b) French teacher 

iii) a) He had not prepared his grammar lesson 

iv) c) bunking the class 

(a) Both, A and R, are true but R is not the correct explanation of A 

When Franz was passing through Town Hall, he saw a huge crowd there. Franz noticed that the crowd was looking carefully at the Bulletin board. Franz feared bad news on the bulletin board.

i) b) because he was emotional

ii) c) Long live France

iii) d) Patriotism

iv) d) both a and c

a. (i) southern Wild

b. (ii) under the tree

c. (ii) simile

d. (iv) God

(e) because white is associated with good things.

(f) . flowers/trees/beasts/men.

(g) . by taking him on her lap under the tree and by kissing him.

(h) Metaphor as God’s love is compared to the rays of the sun

(i) because black people are more loved by God so more sunlight falls on them.

(j) The clouds will vanish when the voice of God is heard

(k) (i) bore 

(ii) grove

(a) Both, A and R, are true and R is the correct explanation of A 

i) a) Franz 

ii) d) Wore his fancy clothes

iii) b) It was his last lesson 

iv) c) Solemn 

v) b) a bit settled 

The author was late that morning. He was frightened by scolding. He did not prepare the Participles which M. Hamel had asked to question students.

b) it means that when people are deprived their surroundings are also affected

c) he was excited that he was going to learn German 

Correct option: d. Large & Complex

Correct option is c. German

d) he counted on the hustle and bustle that was usual in the school

Correct option is (b) Planning is a primary function of management.

Correct option is (c) Setting planning premises

d) both a and c

Correct option is (d) Decentralisation

i) b) for not learning participles

ii) b) he would not learn French now

iii) b) 2 and 3

iv) b) procrastination

Correct option is (a) Planning leads to rigidity