Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

3/4÷3

Answer»

3/4=0.75

0.75 /3=0.25

hence verified


2.

Obtain all zeros of the polynomial 2y3 - 4y2 - 8y + 16, if two of its zeroes are 2 and - 2.

Answer»

2y3 - 4y2 - 8y + 16  = 0

⇒ 2y2(y - 2) - 8(y - 2) = 0

⇒ (2y2 - 8)(y - 2) = 0

⇒ 2(y2 - 4) (y - 2) = 0

⇒ 2(y + 2) (y - 2)2 = 0

⇒ y = -2, 2, 2

Hence, all zeros of the polynomial are 2 and -2 where 2 repeats two times.

3.

`2^(1.5) : 2^(0.5)` अनुपात किसके बराबर होगा !A. `2:1`B. `3:1`C. `6:1`D. `3:2`

Answer» Correct Answer - A
`2^(1.5):2^(0.5)`
`=(2^((3)/(2)))/(2^((1)/(2)))rArr(2^(1))/(1)=(2)/(1)`
4.

यदि `(x^(3)-y^(3)):(x^(2)+xy+y^(2))=5:1` और `(x^(2)-y^(2)):(x-y)=7:1`, तो अनुपात `2x : 3y` किसके बराबर है ?A. `3:2`B. `2:3`C. `4:3`D. `4:1`

Answer» Correct Answer - D
(प्रश्ननुसार)
`(x^(3)-y^(3))/(x^(2)+xy+y^(2))=(5)/(1)`
`((x-y)(x^(2)+xy+y^(2)))/(x^(2)+xy+y^(2))=(5)/(1)`
x-y=5
`(x^(2)-y^(2))/(x-y)=(7)/(1)`
x+y=7
Solve equations (i) and (ii)
x=6
y=1
`therefore (2x)/(3y)=(2xx6)/(3xx1)=(12)/(3)=(4)/(1)`
5.

(a) Find the value of if \( \left|\begin{array}{ccc}1 & 2 & 9 \\ 2 & x & 0 \\ 3 & 7 & -6\end{array}\right|=0 \)

Answer»

Expanding along R1 we get,

Determinant = 0 = 1 (-6x+0) - 2 (-12+0) + 9 (14-3x) 

i,e 0 = -6x + 24 + 126 - 27x

Therefore, x= 150/33 = 4.55

Hope this helps :)

6.

Supposed to invest 5,000 at 10% simple interest how much money will you have after 5years

Answer»

Given,

P = 5000,

R = 10%,

Time = T = 5 years

S.I. for 5 years = S.I = \(\frac{PRT}{100}\)

\(\frac{5000\times 10\times 5}{100}\)

= Rs. 2500.

Money after 5 years = P + S.I.

= 5000 + 2500

= Rs. 7500.

7.

Suppose you invest 5,000 at 10% simple interest how much money will you have after 5 years?

Answer» = 5000 + (5000 x 10/100) 5

= 5000 + 2500

= 7000

Given,

P = 5000,

R = 10%,

Time = T = 5 years

S.I. for 5 years = S.I = \(\frac{PRT}{100}\)

\(\frac{5000\times 10\times 5}{100}\)

= Rs. 2500.

Money after 5 years = P + S.I.

= 5000 + 2500

= Rs. 7500.

8.

Under what condition Poisson distribution tends to Normal distribution?

Answer»

When λ is very large i.e., λ → ∞ poisson distribution tends to normal distribution.

9.

Under what conditions does the Hypergeomctric distribution tends to Binomial distribution?

Answer»

Hypergeometric when 

(i) (a + b) is very large i.e., (a + b) → ∞ and 2.

\(\frac{a}{a+b} = p.\)

10.

State under what conditions Binomial distribution tends to Poisson distribution.

Answer»

Binomial distribution tends to poisson distribution under the following conditions:

1. When n is large i.e., n → ∞

2. P is very small i.e., p → 0 and

3. np = λ is fixed.

11.

Define level of significance and critical value.

Answer»

1. Probability of occurence of Type I error is called level of significance (α). 

2. The value of test statistics which separates the critical region (i.e., rejection region) and acceptance region is called critical value (k).

12.

What are the value of β1, and β2 in Normal distribution?

Answer»

In Normal distribution, β1 = 0 and β2 = 3.

13.

Write the values of β1, and β2 in a t-distribution.

Answer»

For a t-distribution β1, = 0 (Non – skewed) and β2 > 3 (Lepto Kurtic).

14.

Find coefficient of kinetic friction if a body of mass 'm' starts to on a plane with angle of inclination 30degrees. the body moves 4meters in 4second.

Answer»

Effective force acting on the body downward along the inclined plane with angle of inclination 30° is

F = mgsin30°-umgcos30°,where u is the coefficient of kinetic friction.

So acceleration

a=F/m=gsin30°-ugcos30°

Again the body traverses 4 m in 4sec starting from rest

So 4=1/2×a×42

Or,a==0.5m/s2

Hence

0.5=gsin30°-ugcos30°

=>1=g-ug×√3

=>u =(10-1)/(10√3)=3√3/10==0.52

15.

______are text or image included at the bottom of the page and may repeat in all pages of the document.

Answer»

Footers are text or image included at the bottom of the page and may repeat in all pages of the document.

16.

______are drawn groups of pictures that show all of the possible expressions that a character can make and many of the different poses that they could adopt. a) Layouts b) Model Sheets c) Expression Sheets d) Animatic

Answer»

Model Sheets are drawn groups of pictures that show all of the possible expressions that a character can make and many of the different poses that they could adopt.

17.

Why doesn't a bird get a shock when it stands on a high voltage wire?

Answer»

(i) When the bird stands on a high voltage wire, there is no potential difference between the legs of the bird because it stands on a single wire. 

(ii) So no current passes through the bird. 

(iii) Hence, it doesn't feel any electric shock

18.

A copper wire of length l and radius r is nickel plated till its final radius is 2r. If the resistivity of the copper and nickel are `rho_(c)` and `rho_(n)`, then find the equivalent resistance of the wire.A. `(l)/(pir^2[(1)/(rho_(c))+(3)/(rho_(n))])`B. `(l)/(pir^2[(1)/(rho_(c))-(3)/(rho_(n))])`C. `(2l)/(pir^2[(1)/(rho_(c))-(3)/(rho_(n))])`D. `(2l)/(pir^2[(1)/(rho_(c))+(3)/(rho_(n))])`

Answer» Correct Answer - A
Copper and nickel are connected in parallel. Now , area of copper wire is `A_1=pi r^2`
and area of nickel wire is `A_2=pi(2r)^2-pi r^2=3 pi r^2`
`(1)/(R_p)=(1)/(R_1)+(1)/(R_2)`
As, `R=(rhol)/(pi r^2)`
`(1)/(R_p)=(pi r^2)/(rho_cl)+(3 pi r^2)/(rho_nl)=(pi r^2rho_nl+3pi r^2rho_cl)/(rho_clxxrho_nl)`
or ,` (1)/(R_p)=(pi r^2)/(rho_crho_nl)[rho_n+3rho_c]`
or `(1)/(R_p)=(pi r^2)/(l)[(rho_n)/(rho_c.rho_n)+(3rho_c)/(rho_crho_n)]`
or `(1)/(R_p)=(pir^2)/(l)[(1)/(rho_c)+(3)/(rho_n)]`
or `R_p=(l)/(pi r^2[(1)/(rho_c)+(3)/(rho_n)])`
19.

A body of mass 2 kg is placed on a horizontal frictionless surface . It is connected to one end of the a spring whose force constant is 250 N/m the other end of the spring is joining with the wall A particle fo mass 0.15 kg moving horizontally with speed V sticks to the body after collision if it compressess the spring by 10 cm the velocity of the pariticle is - A. 3 m/sB. 5 m/sC. 10 m/sD. 15 m/s

Answer» Correct Answer - D
BY the conservation of momentum
`mxxv=(m+M)V`
by the conservation of enrgy
`(1)/(2)kx^(2)=(1)/(2)(m+M)V^(2)`
` =(1)/(2)(m+M)((mv)/(m+M))^(2)`
` implies v= sqrt((kx^(2)(m+M))/(m^(2)))`
`=(x)/(m)sqrt(k(m+M))`
So v= 15 m/s
20.

Which one of the following publishes National Account Statistic report annually?A. National Sample Survey Organisation (NSSO)B. Central Statistics Office (CSO)C. National Statistical CommissionD. Indian Statistical Institute

Answer» Correct Answer - B
21.

Unemployment is reduced due to measures taken by the government. State its economic value in the context of production possibility frontier.

Answer» Due to reduction of unemployment, resources are now fully and efficiently utilized. The economy now operates on a point lying on the PPC due to fuller and efficient utilization of resources. Thus, the level of production is more than it was before as more goods are produced.
22.

Which of the following is/are method to calculate GDP?A. Value added methodB. Expenditure methodC. Income methodD. Cost of Good method

Answer» Correct Answer - C
23.

Which of the following is called National Income represented by NI?A. Net National Product (NNP)B. Gross Domestic Product (GNP)C. Gross National Product (GNP)D. Net Domestic Product

Answer» Correct Answer - A
24.

The government has started promoting foreign capital. What is its economic value in the context of production possibility frontier ?

Answer» As the government has started promoting foreign capital, it will lead to an increase in the availability of resources, thereby shifting the Production Possibility Curve (PPC) parallelly to the right.
25.

Who made the first attempt ot measure National Income of India before the Independence?A. William DigbyB. Dada Bhai NaorojiC. V K R V RaoD. Findlay Shirras

Answer» Correct Answer - B
26.

Government has started promoting foreign capital. What is economic value in the context of production possibilities frontier.

Answer» Economic value is reflected in terms of increased output and income as economy would move to a point on the PPC.
27.

Where did SARAS Aajeevika Mela 2018 held?A. New DelhiB. KarnalC. MumbaiD. Kolkata

Answer» Correct Answer - A
28.

With who does GIFT city has signed MoU to promote IFSC operations?A. IBMB. TCSC. Deloitte Touche Tohmatsu India LLPD. SAP Global

Answer» Correct Answer - C
29.

Large number of technical training institution have been started by government. State is economic value in the context of production possibilities frontier.

Answer» Economic value is reflected in terms of increased output and income as economy would move to a point on the PPC.
30.

Who has acquired US-based Tenor, a GIF platform for Android, iOS, and desktop?A. AppleB. FacebookC. IBMD. Google

Answer» Correct Answer - D
31.

With whom does government of India has signed agreement to help modernize technical and vocational education and training (TVET) institution and improve the skills ecosystem in the State of Himachal Pradesh?A. Asian Development BankB. New Development BankC. EXIM bankD. World bank.

Answer» Correct Answer - A
32.

9. The other name of Modal Auxiliaries is ______________________.

Answer»

The other name of Modal Auxiliaries is modal verbs.

33.

10. The students ________ come to the class to take their test results. (Determination)

Answer»

The students must come to the class to take their test results.

34.

A good Physical Activity Facilitator (a) Creates an environment for learning (b) Focuses on fitness development of children (c) Conducts team games (d) Can play all the outdoor and indoor games

Answer»

Correct answer is (a) Creates an environment for learning 

35.

Assertion (A): Incubation is followed by Inoculation. Reason (R): Explant is inoculated to media. (a) Both A and R are correct but R is not a correct explanation to A(b) R explains A (c) A is correct R is incorrect (d) Both A and R are incorrect

Answer»

(b) R explains A

36.

Physical activities within a group, a club, a society, a community, a village or an institution is called (a) Service Program (b) Intramural Program (c) Extramural program (d) Fitness and recreational program

Answer»

Correct answer is (b) Intramural Program 

37.

Environment of any community is called (a) Paratope (b) Biotope (c) Ecotope(d) Epitope

Answer»

Correct Answer is: (b) Biotope

38.

The plants which are grown in silvopasture system are (a) Sesbania and Acacia (b) Solanum and Crotolaria(c) Clitoria and Begonia (d) Teak and sandal

Answer»

(a) Sesbania and Acacia

39.

Which of the following is not a sedimentary cycle? (a) Nitrogen cycle (b) Phosphorus cycle (c) Sulphur cycle (d) Calcium cycle

Answer»

(a) Nitrogen cycle

40.

During the rainy season the eastern coast of India suffers heavy damage due to. A. Heavy Rainfall B. Huge Tidal waves C. Tropical cyclones D. Hurricances

Answer»

C. Tropical cyclones

41.

Congress walked out of the government in 1939. A. Muslim League was kept out of government. B. Muslim League did not participate in Quit Indian movement. C. Opposing the unilateral decision of the Viceroy to participate in World War II D. The Muslim League proposed division of India.

Answer»

C. Opposing the unilateral decision of the Viceroy to participate in World War II 

42.

Security council is like the cabinet of the UNO because it. A. Has five permanent members. B. Has ten temporary members. C. Has special voting power. D. It can take major decisions on global issues.

Answer»

D. It can take major decisions on global issues.

43.

Social Inequality is the result of A. Caste B. Gender C. Profession D. Unequel social opportunity

Answer»

D. Unequel social opportunity

44.

A person who recieves less than _____ calories of food is considered as malnourished. A. 1600 B. 1633 C. 1632 D. 1635

Answer»

A person who recieves less than 1632 calories of food is considered as malnourished.

45.

We know that balancing of a chemical equation is entirely bases on law of conservation of mass. However the concept of Principle of Atom Conservation (POAC) can also be related to law of consevation of mass in a chemical reaction. So, POAC can also act as a technique for balancing a chemical equation. For example, for a reaction: `ABC_(3) rarr AB+C_(2)` On applying POAC for A , B and C and related the equations , we get : `(n_(ABC_(3)))/(2) =(n_(AB))/(2) =(n_(C_(2)))/(3)` (`n_(x)` : number of moles of X) Thus , the cofficients of `ABC_(3)` , AB and `C_(2)` in the balanced chemical equation will be 2,2 and 3 respectively and the balanced chemical equation can be represented as , `2ABC_(3) rarr 2AB + 3C_(2)` If in the above question, the atomic masses of X and Y are 10 and 30 respectively, then the mass of `XY_(3)` formed when 120 g of `Y_(2)` reacts completely with X is:A. 133.3 gB. 200 gC. 266.5 gD. 400 g.

Answer» Correct Answer - A
on applying POAC for X and Y respectively, we get
`1xxn_X=1xxn_(XY_3)`…(1)
`2xxn_(Y_2)=3xxn_(XY_3)`…(2)
by (3) & (4) , `n_(Y_2)=1.5xxn_X`
from (3) and (4) `n_X/2=n_(Y_2)/3=n_(XY_3)/2`
`:.` Balanced equatin : `2X+3Y_2to3XY_3`
`n_(Y_2)=120/60 :. n_(XY_3)=4/3=2`
`:. m_(XY_3)=4/3xx100=133.3 g`
46.

We know that balancing of a chemical equation is entirely based on law of conservation of mass. However the concept of Principle of Atom Conservation (POAC) can also be related to law of conservation of mass in a chemical reaction.So, POAC can also act as a technique for balancing a chemical equation.For example, for a reaction : `ABC_3toAB+C_2` On applying POAC for A,B&C and relating the 3 equation, we get :`(.^nABC_3)/2=(.^nAB)/2=(.^n_(c_2))/3` (`n_x` : number of moles of x) Thus, the coefficients of `ABC_3`,AB & `C_2` in the balanced equation with be 2,2 & 3 respectively and the balanced chemical equation can be represented as : `2ABC_3to2AB+3C_2` Now answer the following questions : If the weight ratio C and `O_2` presents 1:2 and both of reactants completely consume and form CO and `CO_2` and we will obtain a gasous mixture of CO and `CO_2`.What would be the weight ratio of CO and `CO_2` in mixture.A. `11:7`B. `7:11`C. `1:1`D. `1:2`

Answer» Correct Answer - B
`{:(C+,O_2to,CO+,CO_2),(w,2w,x" "gm, y" "gm):}`
`POAC for C " " POAC for O`
`w/12=x/28+y/44 " " 2xx(2w)/32=x/28+2xxy/44`
`w/3=x/7+y/11 …(i) " " w/4=x/14+y/11..(2)`
So now, `(3y)/11+(3x)/7=(4x)/14+(4y)/11`
`(3x)/7-(2x)/7=y/11`
`x/7=y/11, x/y=7:11`
47.

We know that balancing of a chemical equation is entirely bases on law of conservation of mass. However the concept of Principle of Atom Conservation (POAC) can also be related to law of consevation of mass in a chemical reaction. So, POAC can also act as a technique for balancing a chemical equation. For example, for a reaction: `ABC_(3) rarr AB+C_(2)` On applying POAC for A , B and C and related the equations , we get : `(n_(ABC_(3)))/(2) =(n_(AB))/(2) =(n_(C_(2)))/(3)` (`n_(x)` : number of moles of X) Thus , the cofficients of `ABC_(3)` , AB and `C_(2)` in the balanced chemical equation will be 2,2 and 3 respectively and the balanced chemical equation can be represented as , `2ABC_(3) rarr 2AB + 3C_(2)` Which of the following statements jis correct balanced chemical equation, `pA+qB_(2) rarr rA_(2)B_(5)`A. 2p=rB. q=1.25 pC. r=2qD. q=0.8 p

Answer» Correct Answer - B
On applying POAC for A & B respectively, we get
`1xxn_A=2xxn_(A_2B_6)`..(1)
`2xxn_(B_2)=5xxn_(A_2B_6)`..(2)
by (1) & (2) , `n_A/4=n_(B_2)/5=n_(A_2B_6)/2`
`:.`balanced equation : `4A+5B_2to2A_2B_6`
`:. q=1.25 p`
48.

632 g of sodium thiosulphate `(a_(2)S_(2)O_(3))` reacts with copper sulphate to form cuproc thiosulphate which is reduced by sodium thiosulphate to give cuprous compound which is dissolved in excess of sodium thiosulphate to form a complex compound sodium cuprothisosulphate `(Na_(4)[Cu_(6)(S_(2)O_(3))_(5)])`, (MW=1033) `CuSO_(4) + Na_(2)S_(2)O_(3) rarr CuS_(2)O_(3) + Na_(2)SO_(4)" "` [very fast] `2CuSO_(4)+Na_(2)S_(2)O_(3)+Na_(2)S_(2)O_(3) rarr Cu_(2)S_(2)O_(3) + Na_(2)S_(4)O_(6)` `3Cu_(2)S_(2)O_(3) + 2Na_(2)S_(2)O_(3) rarr Na_(4)[Cu_(6)(S_(2)O_(3))_(5)]` `" "` (Sodium cuprothisoulphate ) In this process , 0.2 mole of sodium cuprothiosulphate is formed .(O=16 , Na=23 , S=32) It instead of given amount of sodium thiosulphate, 2 moles of sodium thiosulphate along with 3 moles of `CuSO_(4)` were taken initially . Then, moles of sodiu cuprothiosulphate formed is:

Answer» Correct Answer - A
No moles of `Na_2S_2O_3` would remain in step (i) so further reaction will stop because `Na_2S_2O_3` is required is excess.
49.

Which of the following is not completely synthesized in the Golgi complex of a cell?(a) Pectins(b) Hemicellulose(c) N-linked oligosaccharides(d) O-linked oligosaccharides

Answer» Correct answer is (c) N-linked oligosaccharides

The best I can explain: Pectins and hemicelluloses found in the plant cell wall as well as O-linked oligosaccharides are synthesized completely in the Golgi complex. The synthesis of N-linked oligosaccharides begins in the endoplasmic reticulum (ER).
50.

Sarcoplasmic reticulum is found in ________________(a) liver cells(b) kidney cells(c) muscle cells(d) neurons

Answer» Correct option is (c) muscle cells

Easiest explanation: Smooth endoplasmic reticulum sequesters calcium ions within the cytoplasm of the cell and controlled release of Ca^2+ from the SER of cardiac and skeletal muscle cells triggers contraction. Smooth endoplasmic reticulum (SER) in the aforementioned cells is known as sarcoplasmic reticulum.