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.

A non zero polynomial f(x) with real coefficients satisfy f(x) = f′(x)f′′(x) and f(0) = 96. If 'a' is the coefficient of highest degree term of f(x), then

Answer»

A non zero polynomial f(x) with real coefficients satisfy f(x) = f(x)f′′(x) and f(0) = 96. If 'a' is the coefficient of highest degree term of f(x), then

2.

The equation of straight line passing through the points (a, b, c) and (a - b, b- c, c - a), is

Answer»

The equation of straight line passing through the points (a, b, c) and (a - b, b- c, c - a), is


3.

A rod of length l moves such that its ends A and B always lie on the lines 3x−y+5=0 and y+5=0 respectively. Then the locus of the point P which divides AB internally in the ratio of 2:1, is

Answer»

A rod of length l moves such that its ends A and B always lie on the lines 3xy+5=0 and y+5=0 respectively. Then the locus of the point P which divides AB internally in the ratio of 2:1, is

4.

The simplified form of tan−1xy−tan−1x−yx+y is equal to

Answer»

The simplified form of tan1xytan1xyx+y is equal to

5.

If X is Poisson variate with P(X=0)=P(X=1), then P(X=2)=

Answer»

If X is Poisson variate with P(X=0)=P(X=1), then P(X=2)=

6.

Let →a and →c be unit vectors and |→b|=4 with →a×→b=2→a×→c. The angle between →a and →c is cos−1(14). If →b−2→c=λ→a, then λ is equal to

Answer»

Let a and c be unit vectors and |b|=4 with a×b=2a×c. The angle between a and c is cos1(14). If b2c=λa, then λ is equal to

7.

The order of the differential equation (d2ydx2)3=xy+(dydx)3 is ___

Answer» The order of the differential equation (d2ydx2)3=xy+(dydx)3 is ___
8.

The number of ways in which the letters of the word Article can be arranged so that even places are always occupied by consonants is

Answer»

The number of ways in which the letters of the word Article can be arranged so that even places are always occupied by consonants is


9.

Area enclosed by curve y3−9y+x=0 and Y - axis is -

Answer»

Area enclosed by curve y39y+x=0 and Y - axis is -

10.

The number of ordered pairs (x,y) of real numbers that satisfy the simultaneous equations x+y2=x2+y=12 is

Answer»

The number of ordered pairs (x,y) of real numbers that satisfy the simultaneous equations x+y2=x2+y=12 is


11.

The value of dydx if y=(x−1)2(x+2)3 is equal to

Answer»

The value of dydx if y=(x1)2(x+2)3 is equal to

12.

If sin x+siny =12 and cosx+cosy = 1, then tan (x+y) = ……..

Answer»

If sin x+siny =12 and cosx+cosy = 1, then tan (x+y) = ……..


13.

If the length of the minor axis is half of the length of the major axis of an ellipse, then the value of 4e2, where e is the eccentricity of the ellipse, is

Answer» If the length of the minor axis is half of the length of the major axis of an ellipse, then the value of 4e2, where e is the eccentricity of the ellipse, is
14.

If A = ⎡⎢⎣0263545710⎤⎥⎦, B = ⎡⎢⎣345231137⎤⎥⎦ then A + B =

Answer»

If A = 0263545710, B = 345231137 then A + B =

15.

Solve the differential equation dydx − 3y cotx = sin2x, y = 2 when x =π2 .

Answer»

Solve the differential equation dydx 3y cotx = sin2x, y = 2 when x =π2 .

16.

There are 12 points in a plane. The number of the straight lines joining any two of them when 3 of them are collinear, is

Answer»

There are 12 points in a plane. The number of the straight lines joining any two of them when 3 of them are collinear, is


17.

5x2+3x4≥394

Answer»

5x2+3x4394

18.

An integrating factor of the differential equation (1+y+x2y)dx+(x+x3)dy=0 is

Answer»

An integrating factor of the differential equation (1+y+x2y)dx+(x+x3)dy=0 is


19.

Which among the following relations defined on R is/are functions

Answer»

Which among the following relations defined on R is/are functions

20.

Which of the following options is/are true? [A∈(0∘,90∘)]

Answer»

Which of the following options is/are true?
[A(0,90)]

21.

Solve x−3x+1<0,xϵR

Answer»

Solve

x3x+1<0,xϵR

22.

Maximum value of the expression √cos2x−10cosx+25+3 is

Answer»

Maximum value of the expression cos2x10cosx+25+3 is

23.

The area of the figure bounded by the parabola x=−2y2,x=1−3y2 is

Answer»

The area of the figure bounded by the parabola x=2y2,x=13y2 is

24.

The possible integral values of k for which the equation |z+i|−|z−i|=k,k&gt;0 represents a hyperbola is

Answer» The possible integral values of k for which the equation
|z+i||zi|=k,k>0 represents a hyperbola is
25.

The equation of the plane containing the straight line x−12=y+2−3=z5 and perpendicular to the plane x−y+z+2=0 is

Answer»

The equation of the plane containing the straight line x12=y+23=z5 and perpendicular to the plane xy+z+2=0 is

26.

If 6 digit number is made using all the digits 1,2,4,5,7,8, then the position of number ′′541782′′ when all numbers formed are arranged in descending order is

Answer» If 6 digit number is made using all the digits 1,2,4,5,7,8, then the position of number ′′541782′′ when all numbers formed are arranged in descending order is
27.

In figure, AB is a chord of the circle and AOC is its diameter such that ∠ACB=50∘. If AT is the tangent to the circle at the point A, then ∠BAT is equal to:

Answer»

In figure, AB is a chord of the circle and AOC is its diameter such that ACB=50. If AT is the tangent to the circle at the point A, then BAT is equal to:

28.

If (x1,y1) and (x2,y2) are the extremeties of the focal chord of parabola y2=16ax, then the value of 16x1x2+y1y2 is

Answer» If (x1,y1) and (x2,y2) are the extremeties of the focal chord of parabola y2=16ax, then the value of 16x1x2+y1y2 is
29.

The probability function of a binomial distribution is P(x)=6Cx pxq6−x, x=0,1,2,...,6. If 2P(2)=3P(3), then p=____

Answer»

The probability function of a binomial distribution is P(x)=6Cx pxq6x, x=0,1,2,...,6. If 2P(2)=3P(3), then p=____

30.

If α and β satisfies the equations 5sin2β=3sin2α and 3tanα=tanβ simultaneously, where 0&lt;α&lt;π, 0&lt;β&lt;π, α,β≠π2, then the possible value(s) of tanα+tanβ is/are

Answer»

If α and β satisfies the equations 5sin2β=3sin2α and 3tanα=tanβ simultaneously, where 0<α<π, 0<β<π, α,βπ2, then the possible value(s) of tanα+tanβ is/are

31.

ColumnIColumnII(Vascular bundles)(Organs)1.Closed collateral, endarchpDicot root2.Open collateral, endarchqMonocot root3.Radial, tetrarch, exarchrDicot stem4.Radial, polyarch, exarchsMonocot stemtDicot leaf

Answer»

ColumnIColumnII(Vascular bundles)(Organs)1.Closed collateral, endarchpDicot root2.Open collateral, endarchqMonocot root3.Radial, tetrarch, exarchrDicot stem4.Radial, polyarch, exarchsMonocot stemtDicot leaf


32.

What is the imaginary part of an expression.

Answer» What is the imaginary part of an expression.
33.

From the following information of Lions' Club, Show the sports material items in the Income and Expenditure Account for the year ending 31-03-2018. 2017(Rs)2018(Rs)Sports Material22,00058,000Creditors for Sports Material78,00092,000Advance to Suppliers for Sports Material15,00025,000Payment to suppliers for the sports material during the year war Rs. 1,20,000.

Answer»

From the following information of Lions' Club, Show the sports material items in the Income and Expenditure Account for the year ending 31-03-2018.

2017(Rs)2018(Rs)Sports Material22,00058,000Creditors for Sports Material78,00092,000Advance to Suppliers for Sports Material15,00025,000Payment to suppliers for the sports material during the year war Rs. 1,20,000.

34.

Sum of all integral values of x satisfying the inequality 352log3(12−3x)−3log2x&gt;32 is

Answer» Sum of all integral values of x satisfying the inequality
352log3(123x)3log2x>32 is
35.

Each side of given cube has resistance of 1 Ω, then equivalent resistance of cube between corner A and B in Ω is (Answer upto two decimal places)

Answer» Each side of given cube has resistance of 1 Ω, then equivalent resistance of cube between corner A and B in Ω is
(Answer upto two decimal places)
36.

If the equation x2+y2=2x is written in polar coordinate system, then r can be

Answer»

If the equation x2+y2=2x is written in polar coordinate system, then r can be

37.

Let origin and the non- real roots of 2z2+2z+λ=0 form the three vertices of an equilateral triangle in the Argand plane then 3λ=

Answer» Let origin and the non- real roots of 2z2+2z+λ=0 form the three vertices of an equilateral triangle in the Argand plane then 3λ=
38.

Write the range of the funciton f(x)=sin[x], where −π4≤x≤π4.

Answer»

Write the range of the funciton f(x)=sin[x], where π4xπ4.

39.

If →a=2^i+λ^j+^k and →b=^i+2^j+3^k are orthogonal, then value of λ is

Answer»

If a=2^i+λ^j+^k and b=^i+2^j+3^k are orthogonal, then value of λ is

40.

Find the equation of the hyperbola with centre at the origin, length of the transverse axis 6 and one focus at (0, 4).

Answer»

Find the equation of the hyperbola with centre at the origin, length of the transverse axis 6 and one focus at (0, 4).

41.

Choose the correct answer in the following question: If A,B are symmetric matrices of same order, then AB-BA is a (a)skew-symmetric matrix (b)symmetric matrix (c)zero matrix (d)identity matrix

Answer»

Choose the correct answer in the following question:

If A,B are symmetric matrices of same order, then AB-BA is a
(a)skew-symmetric matrix
(b)symmetric matrix
(c)zero matrix
(d)identity matrix

42.

Choose the correct answer in the following question: If A=[cosα−sinαsinαcosα], then A+A'=I, if the value of α is (a)π6(b)π3(c)π(d)3π2

Answer»

Choose the correct answer in the following question:

If A=[cosαsinαsinαcosα], then A+A'=I, if the value of α is

(a)π6(b)π3(c)π(d)3π2

43.

Find the integrals of the functions. ∫sin3(2x+1)dx

Answer»

Find the integrals of the functions.
sin3(2x+1)dx

44.

Volume of parallelopiped formed by vectors →a×→b, →b×→c and →c×→a is 36 cubic units. Based on the given information above match the following by appropriately matching the lists given in Column I and Column II. Column 1Column 2a. Volume of parallelopiped formed by vectors p. 0 cubic units →a, →b and →c is b. Volume of tetrahedron formed by vectors q. 12 cubic units→a, →b and →c is c. Volume of parallelopiped formed by vectors r. 6 cubic units →a+→b,→b+→c and →c+→a is d. Volume of parallelopiped formed by vectors s. 1 cubic unit →a−→b,→b−→c and →c−→a is

Answer»

Volume of parallelopiped formed by vectors a×b, b×c and c×a is 36 cubic units. Based on the given information above match the following by appropriately matching the lists given in Column I and Column II.

Column 1Column 2a. Volume of parallelopiped formed by vectors p. 0 cubic units a, b and c is b. Volume of tetrahedron formed by vectors q. 12 cubic unitsa, b and c is c. Volume of parallelopiped formed by vectors r. 6 cubic units a+b,b+c and c+a is d. Volume of parallelopiped formed by vectors s. 1 cubic unit ab,bc and ca is

45.

Prove √5 is irrational

Answer» Prove 5 is irrational
46.

Find the equation of the hyperbola whose vertices are (±7, 0) and the eccentricity is 43.

Answer»

Find the equation of the hyperbola whose vertices are (±7, 0) and the eccentricity is 43.

47.

Find the real solution of tan−1√x(x+1)+sin−1√x2+x+1=x2.

Answer»

Find the real solution of

tan1x(x+1)+sin1x2+x+1=x2.

48.

A homogeneous equation of the form dydx=h(xy) can be solved making the substitution (a) y=vx (b) v=yx (c) x=vy (d) x=v

Answer»

A homogeneous equation of the form dydx=h(xy) can be solved making the substitution
(a) y=vx
(b) v=yx
(c) x=vy
(d) x=v

49.

Find the number of solutions for 4 { x } = x + [x], where { . }, [.] represents fractional part and greatest integer function. ___

Answer»

Find the number of solutions for 4 { x } = x + [x], where { . }, [.] represents fractional part and greatest integer function.


___
50.

Find the number of integers in the domain of √5−x2

Answer»

Find the number of integers in the domain of 5x2