Mathematics
Q1Number system
Which is not a rational number?
- a1
- be
- c3
- d−1
Answer (b): Integers are rational. e is irrational (non-terminating, non-repeating).
Revise: Algebra (Class 11 notes)
Q2Sets
If $A$ and $B$ are non-empty sets and $A\subset B\subset U$, then $A\cap B=$
- aA
- bB
- cU
- d$A-B$
Answer (a): Since $A$ lies inside $B$, the common part of both is $A$ itself.
Revise: Algebra (Class 11 notes)
Q3Inequalities with modulus
If $|x-1|\le 5$ then $x=$
- a${-4,6}$
- b$(-4,6)$
- cU
- d$[-4,6]$
Answer (d): $|x-1|\le5$ gives $-5\le x-1\le5$, so $-4\le x\le6$, the closed interval.
Revise: Algebra (Class 11 notes)
Q4Logarithms
If $\log_a x=y$ then $x=$
- ay
- ba
- c$a^{y}$
- d$1/y$
Answer (c): By the definition of logarithm, $\log_a x=y$ means $x=a^{y}$.
Revise: Algebra (Class 11 notes)
Q5Functions
If $f:\mathbb{R}\to\mathbb{R}$ is defined by $f(x)=3x-2$, for $x\in\mathbb{R}$, then the pre-image of $10$ in $\mathbb{R}$ is
- a4
- b10
- c5
- d0
Answer (a): Solve $3x-2=10$, so $3x=12$ and $x=4$.
Revise: Algebra (Class 11 notes)
Q6Domain of a function
The domain of the function $f(x)=\sqrt{16-x^2}$ is
- a$(-4,4]$
- b$[-4,4]$
- c$(0,4)$
- d${0,5}$
Answer (b): We need $16-x^2\ge0$, i.e. $x^2\le16$, so $-4\le x\le4$.
Revise: Algebra (Class 11 notes)
Q7Mathematical logic
A sentence $x+5=4$ is
- aa false statement
- ba true statement
- cnot a statement
- da statement
Answer (c): Its truth depends on the value of x, so it is an open sentence and not a statement.
Revise: Algebra (Class 11 notes)
Q8Even and odd functions
The function $f(x)=\cos x$ is
- aan even function
- bperiod function
- can odd function
- dneither even or odd
Answer (a): $\cos(-x)=\cos x$, so it is even (it is also periodic, but the even property is the intended answer).
Revise: Trigonometry (Class 11 notes)
Q9Geometric progression
If $p$, $q$ and $r$ are in G.P., then
- a$p+r=2q$
- b$q^2<pr$
- c$q^2<pr$
- d$q^2=pr$
Answer (d): In a G.P. the middle term is the geometric mean, so $q^2=pr$.
Revise: Algebra (Class 11 notes)
Q10Arithmetic progression
If $k+3$, $4k+7$ and $3k-1$ are in AP then the sequence is
- a$7,8,9$
- b$5,7,9$
- c$7,9,11$
- d$1,3,5$
Answer (c): With $k+3,\ 4k-7,\ 3k-1$ in AP: $2(4k-7)=4k+2$, so $k=4$ and the terms are $7,9,11$. The printed $4k+7$ is a misprint for $4k-7$ (it gives no listed sequence).
Revise: Algebra (Class 11 notes)
Q11Matrices
If $\begin{pmatrix}0&6\5+k&0\end{pmatrix}$ is a skew symmetric matrix then $k=$
- a−11
- b−5
- c0
- d−6
Answer (a): For skew symmetry $a_{21}=-a_{12}$, so $5+k=-6$ and $k=-11$.
Revise: Algebra (Class 12 notes)
Q12Determinants
The value of $x$ for the determinant $\begin{vmatrix}x+3&0\1&1\end{vmatrix}=0$ is
- a3
- b−3
- c1
- d0
Answer (b): The determinant is $(x+3)(1)-0=x+3$. Setting it to $0$ gives $x=-3$.
Revise: Algebra (Class 12 notes)
Q13Complex numbers
The value of $\sqrt{-8}\sqrt{-2}$ is
- a16
- b4
- c−4
- d4i
Answer (c): $\sqrt{-8}\sqrt{-2}=(i\sqrt8)(i\sqrt2)=i^2\sqrt{16}=-4$.
Revise: Algebra (Class 12 notes)
Q14Complex numbers
The modulus of $\frac{1+i}{1-i}$ is
- a1
- b−2
- c$\sqrt2$
- d$1/\sqrt2$
Answer (a): $|1+i|=|1-i|=\sqrt2$, so the ratio of moduli is $1$.
Revise: Algebra (Class 12 notes)
Q15Cosine rule
In a triangle $ABC$, if $a=2\sqrt3$, $b=2$, $c=4$ then $A=$
- a$15^\circ$
- b$30^\circ$
- c$45^\circ$
- d$60^\circ$
Answer (d): $\cos A=\frac{b^2+c^2-a^2}{2bc}=\frac{4+16-12}{16}=\frac12$, so $A=60^\circ$.
Revise: Trigonometry (Class 11 notes)
Q16Properties of triangles
The perimeter $2s$ of the triangle $ABC$ is
- a$a+b+c$
- b$(a+b+c)/R$
- c$2a+2b+2c$
- d$A+B+C$
Answer (a): The perimeter is the sum of the three sides, $a+b+c$.
Revise: Trigonometry (Class 11 notes)
Q17Properties of triangles
Area of the triangle $ABC$ is
- aabc
- b$abc/R$
- c$abc/4R$
- d$4R/abc$
Answer (c): Using $\Delta=\frac12ab\sin C$ and $c=2R\sin C$, we get $\Delta=\frac{abc}{4R}$.
Revise: Trigonometry (Class 11 notes)
Q18Straight lines
Equation of a line perpendicular to the line $x-3y+7=0$ is
- a$3x+y+10=0$
- b$2x-3y=10$
- c$-3x-y-10=0$
- d$x+3y=10$
Answer (a): A line perpendicular to $x-3y+7=0$ has the form $3x+y+k=0$; option a fits.
Revise: Analytic geometry (Class 11 notes)
Q19Pair of straight lines
The two lines represented by $ax^2+xy+by^2=0$ are perpendicular to each other if
- a$a+b>0$
- b$a+b<0$
- c$ab=0$
- d$a+b=0$
Answer (d): Pair of lines $ax^2+2hxy+by^2=0$ is perpendicular when $a+b=0$.
Revise: Analytic geometry (Class 12 notes)
Q20Circle
Equation of tangent at $(0,1)$ to the circle $x^2+y^2=1$ is
- a$x=1$
- b$y=1$
- c$x=0$
- d$y=-1$
Answer (b): Tangent at $(x_1,y_1)$ is $xx_1+yy_1=1$; with $(0,1)$ it becomes $y=1$.
Revise: Analytic geometry (Class 11 notes)
Q21Parabola
The focus of the parabola $y^2=4x$ is
- a$(0,1)$
- b$(1,0)$
- c$(0,0)$
- d$(-1,0)$
Answer (b): Compare with $y^2=4ax$: $a=1$, so the focus is $(a,0)=(1,0)$.
Revise: Analytic geometry (Class 12 notes)
Q22Limits
If $\lim_{x\to3}\frac{x^n-3^n}{x-3}=27$, then $n=$
- a3
- b4
- c9
- d0
Answer (a): The limit is $n\cdot3^{n-1}$. For $n=3$ it is $3\cdot9=27$.
Revise: Calculus (Class 11 notes)
Q23Limits
$\lim_{x\to0}\frac{\sin3x}{x}=$
- a1
- b0
- c0/0
- d3
Answer (d): Write it as $3\cdot\frac{\sin3x}{3x}\to3\cdot1=3$.
Revise: Calculus (Class 11 notes)
Q24Continuity
The function $f(x)=\begin{cases}\frac{x^2-x}{x-1}&x\ne1\k&x=1\end{cases}$ is continuous at $x=1$ for $k=$
- a0
- b2
- c1
- d0/0
Answer (c): For $x\ne1$, $f(x)=x$, so the limit at $1$ is $1$. Continuity needs $k=1$.
Revise: Calculus (Class 11 notes)
Q25Differentiation
If $y=e^{ax^2+b}$ then $\frac{dy}{dx}=$
- a$ax^2+b$
- b$2axy$
- c$2ax$
- d$e^{ax^2+b}$
Answer (b): By the chain rule, $\frac{dy}{dx}=e^{ax^2+b}\cdot2ax=2axy$.
Revise: Calculus (Class 12 notes)
Q26Implicit differentiation
If $x^2+y^2=25$ then $\frac{dy}{dx}$ at $(0,5)$ is
- a0
- bundefined
- c$x/y$
- d$-x/y$
Answer (a): Differentiate: $\frac{dy}{dx}=-\frac xy=-\frac05=0$.
Revise: Calculus (Class 12 notes)
Q27Maxima and minima
The stationary point of the function $f(x)=x^2-6x+3$ is $x=$
- a0
- b3
- c−3
- d6
Answer (b): $f'(x)=2x-6=0$ gives $x=3$.
Revise: Calculus (Class 12 notes)
Q28Integration
$\int e^{\log_e x},dx=$
- a$\log_e x+c$
- b$x^2+c$
- c$\frac{x^2}{2}+c$
- d$e^{\log_e x}+c$
Answer (c): $e^{\log_e x}=x$, so the integral is $\int x,dx=\frac{x^2}{2}+c$.
Revise: Calculus (Class 12 notes)
Q29Definite integrals
$\int_0^1\frac{2x}{x^2+2},dx=$
- a$\log_e\frac23$
- b$\log_e\frac32$
- c0
- d3
Answer (b): It equals $[\ln(x^2+2)]_0^1=\ln3-\ln2=\ln\frac32$.
Revise: Calculus (Class 12 notes)
Q30Integration
$\int\frac{1}{\cos^2x},dx=$
- a$\cot x+c$
- b$\cos x+c$
- c$\sec^2x+c$
- d$\tan x+c$
Answer (d): $\frac1{\cos^2x}=\sec^2x$, whose integral is $\tan x+c$.
Revise: Calculus (Class 12 notes)
Q31Area under a curve
Area bounded by the x-axis and the curve $y=x+2$ and the lines $x=0$ and $x=2$ is
- a−6 sq. units
- b2 sq. units
- c4 sq. units
- d6 sq. units
Answer (d): Area $=\int_0^2(x+2)dx=2+4=6$ sq. units.
Revise: Calculus (Class 12 notes)
Q32Vectors
The unit vector of $i+j$ is
- a$\frac{i}{\sqrt2}+\frac{i}{\sqrt2}$
- b$\frac{i}{\sqrt2}-\frac{i}{\sqrt2}$
- c$i-j$
- d1
Answer (a): Divide by the magnitude $\sqrt2$: $\frac{i+j}{\sqrt2}$, which is option a (printed with a typo, i for j).
Revise: Vectors (Class 11 notes)
Q33Vectors
The direction of vector $v=ai+bj$ is
- a$\tan^{-1}\frac ab$
- b$\sin^{-1}\frac ab$
- c$\tan^{-1}\frac ba$
- d$\cos^{-1}\frac ab$
Answer (c): The angle with the x-axis satisfies $\tan\theta=\frac ba$.
Revise: Vectors (Class 11 notes)
Q34Probability
The probability of selecting a vowel from the English alphabet is
- a1/26
- b0
- c1/5
- d5/26
Answer (d): There are $5$ vowels among $26$ letters, so the probability is $5/26$.
Revise: Statistics and Probability (Class 11 notes)
Q35Standard deviation
The standard deviation of the data: $5, 10, 15, 20$ and $25$ is
- a$5\sqrt2$
- b5
- c$\sqrt2$
- d10
Answer (a): Mean $=15$; squared deviations sum to $250$; variance $=50$; SD $=\sqrt{50}=5\sqrt2$.
Revise: Statistics and Probability (Class 11 notes)
Q36Linear inequalities
The solution set of $3x+5>2x+1$ is
- a$x>4$
- b$x>-4$
- c$x<-4$
- d$x\ge-4$
Answer (b): Subtract $2x+5$ from both sides: $x>-4$.
Revise: Algebra (Class 11 notes)
Q37Numerical differentiation
If $f(x)=2x+1$ then the approximate value of $f'(2)$ with $h=0.1$ is
- a5.1
- b0
- c2.0
- d2.1
Answer (c): $\frac{f(2.1)-f(2)}{0.1}=\frac{5.2-5}{0.1}=2.0$.
Revise: Calculus (Class 12 notes)
Q38Linear cost model
In a manufacturing company the production cost of $50$ items is Rs $5000$ in one day and Rs $12000$ to produce $150$ items in one day. If $x$ represents the number of items and $y$ represents the cost, the model equation is
- a$y=70x-1500$
- b$y=70x-5000$
- c$y=-70x-1500$
- d$y=70x+1500$
Answer (d): Slope $=\frac{12000-5000}{150-50}=70$. Then $5000=70(50)+c$ gives $c=1500$.
Revise: Analytic geometry (Class 11 notes)
Q39Cost function
A company finds the variable cost of Rs $.5$ per unit output and fixed cost of Rs $25$, where $Q$ is the number of outputs, then the total cost function, $T$ is
- a$T=5Q+25$
- b$T=25Q+5$
- c$T=5Q-25$
- d$T=25Q-5$
Answer (a): Total cost = variable cost per unit times Q plus fixed cost, so $T=5Q+25$. The printed '.5' looks like a misprint for 5, since only the 5Q+25 option fits.
Revise: Analytic geometry (Class 11 notes)
Q40Vertical projection
If a ball is projected vertically upwards with a velocity of $24.9$ m/s, then the maximum height described by the ball is
- a44 m
- b14.7 m
- c78.4 m
- d44.1 m
Answer (d): $H=\frac{u^2}{2g}$. With $u=29.4$ m/s, $H=\frac{864.36}{19.6}=44.1$ m. The printed 24.9 is a transposition of 29.4 (24.9 gives 31.6 m, not listed).
Revise: Kinematics (Class 11 notes)
English
Q41Synonyms
Pick out the word or group of words which has nearly the same meaning as the word "headstrong"
- acruel
- bflexible
- cstubborn
- dsoft
Answer (c): Headstrong means determined to do as one wants, i.e. stubborn.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q42Synonyms
Pick out the word or group of words which has nearly the same meaning as the word "hallucination"
- atransparent
- bdelusion
- chazy
- dfixed
Answer (b): A hallucination is seeing something unreal, which is a delusion.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q43Synonyms
Pick out the word or group of words which has nearly the same meaning as the word "imperious"
- aarrogant
- bdocile
- cperfect
- dfaultless
Answer (a): Imperious means bossy and domineering, close to arrogant.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q44Synonyms
Pick out the word or group of words which has nearly the same meaning as the word "truculent"
- asilent
- bsolid
- ccalm
- daggressive
Answer (d): Truculent means eager to fight, so aggressive.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q45One word substitution
One who talks in sleep
- apacifist
- bbellicose
- csomnambulist
- dsomniloquist
Answer (d): A somniloquist talks in sleep; a somnambulist walks in sleep.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q46One word substitution
False statement about a person made to damage his reputation
- acalumny
- boffence
- cpropaganda
- drumor
Answer (a): Calumny is a false and malicious statement meant to harm someone's reputation.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q47One word substitution
Literature of unreal stories
- afiction
- bparable
- cepisode
- dfable
Answer (a): Fiction is literature made of imagined, unreal stories.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q48One word substitution
The system of spelling in a language
- aetymology
- borthography
- corthodoxy
- dstructure
Answer (b): Orthography is the conventional spelling system of a language.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q49Antonyms
Pick out the word or group of words which has nearly the opposite meaning as the word "tranquil"
- aserene
- bagitated
- cstatic
- dexcited
Answer (b): Tranquil means calm, so the opposite is agitated (excited is a weaker fit).
Revise: Vocabulary and Word Formation (Class 11 notes)
Q50Antonyms
Pick out the word or group of words which has nearly the opposite meaning as the word "spurious"
- afalse
- bmutual
- cgenuine
- dhypothetical
Answer (c): Spurious means fake, so the opposite is genuine.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q51Antonyms
Pick out the word or group of words which has nearly the opposite meaning as the word "clamour"
- anoisy
- bverbal
- csilence
- dobscure
Answer (c): Clamour is loud noise, so the opposite is silence.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q52One word substitution
The art of letter writing
- aepistemology
- blethography
- ccalligraphy
- depistolography
Answer (d): Epistolography is the art of writing letters (calligraphy is beautiful handwriting).
Revise: Writing Skills (Class 11 notes)
Q53Phobias
Morbid fear of horses
- amysophobia
- bpeccatophobia
- cpyrophobia
- dhippophobia
Answer (d): Hippophobia is the fear of horses (hippo means horse).
Revise: Vocabulary and Word Formation (Class 11 notes)
Q54Prepositions
Choose correct prepositions for the given expression: "Johy died ... blood cancer whereas his father died ... the loss of blood."
- aof, of
- bof, from
- cfrom, from
- don, of
Answer (b): One dies of a disease and from a wound or loss of blood.
Revise: Grammar and Usage (Class 11 notes)
Q55Prepositions
Choose correct prepositions for the given expression: "Divide these apples ... two children and let me divide the property ... my four sons."
- ato, among
- bbetween, among
- cto, to
- damong, between
Answer (b): Between is used for two, among for more than two.
Revise: Grammar and Usage (Class 11 notes)
Q56Prepositions
Choose correct prepositions for the given expression: "He loves being talked ... and this is the room I sleep ..."
- aabout, in
- bon, in
- cto, on
- don, on
Answer (a): Talked about (discussed) and sleep in a room.
Revise: Grammar and Usage (Class 11 notes)
Q58Prepositions
Choose correct prepositions for the given expression: "Ramesh withdraws ... a contest as he very much trusts ... the prediction of an astrologer."
- afor, from
- bfrom, in
- cin, in
- dfrom, from
Answer (b): Withdraw from a contest and trust in a prediction.
Revise: Grammar and Usage (Class 11 notes)
Q59Prepositions
Choose correct prepositions for the given expression: "The house is ... fire! and therefore send ... the fire brigade."
- aon, on
- bon, for
- cfor, on
- dfor, for
Answer (b): A house is on fire, and we send for the fire brigade.
Revise: Grammar and Usage (Class 11 notes)
Q60Phrasal verbs
Pick up the correct phrasal verb for the expression: "The van ... in front of me, so I had to break suddenly."
- apull round
- bpull out
- cpull up
- dpull off
Answer (b): Pull out in front of someone means to move out into their path.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q61Phrasal verbs
Pick up the correct phrasal verb for the expression: "Don't let yourself be ... by that lazy, selfish person."
- apuff up
- bput through
- cput upon
- dput out
Answer (c): Be put upon means to be taken advantage of.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q62Phrasal verbs
Pick up the correct phrasal verb for the expression: "I made a few serious enquiries but nothing ... it in the end."
- acome in
- bcome into
- ccome of
- dcome off
Answer (c): Nothing came of it means there was no result.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q63Phrasal verbs
Pick up the correct phrasal verb for the expression: "We are ... for a house in this area."
- alooking at
- blooking for
- clooking back
- dlooking around
Answer (b): Look for means to search for.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q64Phrasal verbs
Pick up the correct phrasal verb for the expression: "The bus driver asked the passengers to ..."
- amove over
- bmove out
- cmove in
- dmove along
Answer (d): Move along means to keep moving further inside or onwards.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q65Idioms
Give the exact meaning of the idiomatic expression "out in the cold"
- aleft ignored or neglected
- bactive and busy
- cangry and dissatisfied
- din bad situation
Answer (a): To be out in the cold is to be left out and ignored.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q66Idioms
Give the exact meaning of the idiomatic expression "across the board"
- aaffecting everyone
- bbetter than usual
- cagainst time
- dcorrect and honest
Answer (a): Across the board means applying to everyone or all categories.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q67Idioms
Give the exact meaning of the idiomatic expression "the writing on the wall"
- aunexpected and surprising
- bimpending danger or misfortune
- ca lot of excitement
- dfixed views and ideas
Answer (b): The writing on the wall is a clear sign of coming trouble.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q68Idioms
Give the exact meaning of the idiomatic expression "a high flyer"
- asuccessful career
- ba very ambitious person
- clively and cheerful
- dsuperior aid arrogant
Answer (b): A high flyer is someone ambitious who is likely to be very successful.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q69Idioms
Find the meaning of the idiomatic expression "face the music"
- aface friendly environment
- bdisregard or defy
- cdeal with unpleasant situation or criticism
- dready to face
Answer (c): Face the music means to accept the unpleasant consequences of one's actions.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q70Vocabulary in context
He ..... that he could speak five languages.
- asubmitted
- bsuggested
- cboasted
- dchallenged
Answer (c): Boasted means bragged about his ability.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q71Vocabulary in context
The firm ............. its workers very well.
- aregarded
- bcared
- cbehaved
- dtreated
Answer (d): Treat someone well is the usual collocation.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q72Vocabulary in context
In some countries the trains ......... like clockwork.
- atravel
- bspeed
- cgo
- drun
Answer (d): Trains run like clockwork means they run very punctually.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q73Vocabulary in context
This is the ....... chosen for the hospital complex to be built next year.
- aarea
- bplace
- clocality
- dsite
Answer (d): A site is the location chosen for a building.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q74Tenses
We have lived in Kathmandu ever since we ... married.
- awere
- bhad
- care
- dhave
Answer (a): Ever since we were married: simple past after 'since' in the clause.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q75Vocabulary in context
Although they are not rich, they always wear ... clothes.
- arespectable
- brespective
- crespectful
- drespected
Answer (a): Respectable clothes means decent and presentable.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q76One word substitution
One who is neither intelligent nor dull
- atolerable
- bmediocre
- ccommoner
- ddiligent
Answer (b): Mediocre means of only average quality.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q77One word substitution
Changing one's mind too quickly
- aversatility
- bvacillation
- cflexibility
- dInstability
Answer (b): Vacillation means wavering between opinions.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q78One word substitution
A person who is scholarly and learned
- astoic
- bascetic
- cerudite
- datheist
Answer (c): Erudite means having great learning.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q79Idioms
Pour oil in troubled waters
- ainstigate
- bfoment trouble
- ccalm a quarrel with soothing words
- dadd trouble
Answer (c): Pouring oil on troubled waters means calming a dispute.
Revise: Vocabulary and Word Formation (Class 11 notes)
Q80One word substitution
A government controlled by the rich
- aoligarchy
- bdemocracy
- caristocracy
- dplutocracy
Answer (d): Plutocracy is government by the wealthy (the printed 'Genera' is noise).
Revise: Vocabulary and Word Formation (Class 11 notes)
Computer
Q81Information security
Firewall is used for
- aSecurity
- bData transmission
- cAuthentication
- dMonitoring
Answer (a): A firewall filters network traffic to protect a system, a security function.
Revise: Information Security and Cyber Law (Class 11 notes)
Q82Operating systems
Which one of the following is not an operating system?
- aWindows
- bLinux
- cC
- dmacOs
Answer (c): C is a programming language, not an operating system.
Revise: Computer Software and Operating System (Class 11 notes)
Q83Web technology
Which one of the following languages is used to develop web sites?
- aHTML
- bCSS
- cJavaScript
- dAll of the above
Answer (d): HTML, CSS and JavaScript are all used to build websites.
Revise: Web Technology I (Class 11 notes)
Q84Computer system
Which one of the following is part of central processing unit?
- aMouse
- bKeyboard
- cScreen
- dALU
Answer (d): The CPU contains the ALU and control unit; the others are I/O devices.
Revise: Computer System (Class 11 notes)
Q85Word processing
The amount of vertical space between lines of text in a document is called
- aDouble space
- bVertical spacing
- cLine spacing
- dSingle space
Answer (c): The gap between lines of text is line spacing.
Revise: Application Package (Class 11 notes)
Q86Memory
Which one of the following is volatile memory?
- aROM
- bRAM
- cDisk
- dAll of the above
Answer (b): RAM loses its contents when power is off; ROM and disk do not.
Revise: Computer System (Class 11 notes)
Q87Data units
One kilobyte is equivalent to
- a1000 bits
- b1024 bits
- c2048 bits
- d8192 bits
Answer (d): 1 KB = 1024 bytes = 1024 x 8 = 8192 bits.
Revise: Number System and Boolean Logic (Class 11 notes)
Q88Application software
Which one of the following software is used to make presentation slides?
- aWord
- bExcel
- cPower Point
- dAccess
Answer (c): PowerPoint is the presentation software.
Revise: Application Package (Class 11 notes)
Q89Internet
Which one of the following is first search engine?
- aGoogle
- bYahoo
- cArchie
- dAltaVista
Answer (c): Archie (1990) is regarded as the first internet search engine.
Revise: Web Technology I (Class 11 notes)
Q90Computer generations
Which one of the following generation computers were developed using microprocessor technology?
- aFirst
- bSecond
- cThird
- dFourth
Answer (d): Fourth generation computers used microprocessors (LSI/VLSI chips).
Revise: Computer System (Class 11 notes)
Q91General knowledge: chemistry
The gas used to extinguish fire is
- aCarbon Monoxide
- bNeon
- cNitrogen
- dCarbon Dioxide
Answer (d): Carbon dioxide is heavy and does not support burning, so extinguishers use it.
Revise: Chemistry of Non-Metals (Class 11 notes)
Q92General knowledge: biology
The largest portion of the human brain part is
- aCerebellum
- bMidbrain
- cCerebrum
- dMedulla Oblongata
Answer (c): The cerebrum makes up about 85 percent of brain weight.
Q93General knowledge: economics
The process of curing inflation by reducing money supply is called
- aCost-push inflation
- bDemand-pull inflation
- cDisinflation
- dReflation
Answer (c): Disinflation is a fall in the rate of inflation, achieved by tightening money supply.
Q94General knowledge: current affairs
In which country, the world's first baby with antibodies against the novel coronavirus is reported to be born?
- aIndia
- bUSA
- cChina
- dBrazil
Answer (b): The baby was reported in Florida, USA, in early 2021.
Q95General knowledge: current affairs
Which country has banned construction of skyscrapers that are taller than 500 meters?
- aIndia
- bChina
- cJapan
- dUAE
Answer (b): China restricted buildings taller than 500 m in 2021.
Q99General knowledge: health
What is the name of the condition, in which human does not realize the drop in oxygen level and continue to perform normal activities?
- aAbdominal Aortic Aneurysm
- bHappy Hypoxia
- cAcute Flaccid Myelitis
- dAcinetobacter Infection
Answer (b): Happy (silent) hypoxia is low blood oxygen without breathlessness.
Q100General knowledge: astronomy
Which planet is named after a Roman god of Wealth and Agriculture?
- aSaturn
- bNeptune
- cJupiter
- dMercury
Answer (a): Saturn was the Roman god of agriculture and wealth.