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Mathematics QUESTION #1321

The area enclosed between two curves $y=f(x)$ and $y=g(x)$ where $f(x)\geq g(x)$ on $[a,b]$ is given by:

$\int_a^b[f(x)+g(x)]\,dx$
$\int_a^b[f(x)-g(x)]\,dx$✔️
$\int_a^b[f(x)\cdot g(x)]\,dx$
$\dfrac{1}{2}\int_a^b[f(x)-g(x)]\,dx$

Correct Answer Logic:

The area between two curves is the integral of the top curve minus the bottom curve: $A=\int_a^b[f(x)-g(x)]\,dx$ where $f(x)\geq g(x)$ on $[a,b]$. The limits $a$ and $b$ are the $x$-coordinates of the intersection points.

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MBBS QUESTION #10351

Question 2

Long-chain fatty acids must be transported into the mitochondrial matrix for beta-oxidation via a specific carrier system, impaired in carnitine palmitoyltransferase (CPT) deficiency. This transport system is known as the:

Carnitine shuttle✔️
Malate-aspartate shuttle
Glycerol-3-phosphate shuttle
Citrate shuttle

Correct Answer Logic:

The carnitine shuttle — comprising CPT-I (outer mitochondrial membrane), carnitine-acylcarnitine translocase, and CPT-II (inner membrane) — converts long-chain fatty acyl-CoA to acylcarnitine for transport into the mitochondrial matrix, where it is reconverted to acyl-CoA for beta-oxidation; the malate-aspartate and glycerol-3-phosphate shuttles instead transport reducing equivalents (NADH) rather than fatty acids.

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Maths QUESTION #4573

Question 3

A set is divided in ratio $2:3$. If there are $50$ total items, how many are in the smaller group?

$20$✔️
$30$
$10$
$25$

Correct Answer Logic:

Total parts = $2+3=5$. Smaller part = $\frac{2}{5} \times 50 = 20$

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Administration QUESTION #9582

Question 4

Herzberg's Two-Factor Theory identifies 'hygiene factors' and 'motivators.' A government department improves air conditioning, raises salaries by 15%, and increases leave entitlements. Six months later, employee performance remains unchanged. Which theoretical prediction does this outcome validate, and what intervention should have been made instead?

It validates Maslow's prediction that physiological and safety needs are pre-conditions for motivation — the department should now address social needs through team-building
It validates Herzberg's prediction that hygiene factors (salary, working conditions, benefits) prevent dissatisfaction but do not produce motivation — the department should have introduced achievement opportunities, recognition, responsibility and meaningful work✔️
It contradicts Herzberg because salary increases are classified as motivators in the Two-Factor framework — the department should conduct a job redesign study
It validates McGregor's Theory X — the employees are inherently unmotivated and require closer supervision rather than financial incentives

Correct Answer Logic:

Herzberg specifically classified salary, working conditions and fringe benefits as hygiene factors — their presence prevents dissatisfaction but their improvement does not generate positive motivation. Only motivators (achievement, recognition, responsibility, advancement, work itself) produce genuine performance improvement. This is Herzberg's most counterintuitive and practically significant insight — and the scenario precisely illustrates it.

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Chemistry QUESTION #7788

Question 5

What mass of $\mathrm{Al}_2\mathrm{O}_3$ is produced from 18.5 g Al? $4\mathrm{Al} + 3\mathrm{O}_2 \rightarrow 2\mathrm{Al}_2\mathrm{O}_3$

30.8 g
32.6 g
34.9 g✔️
36.5 g

Correct Answer Logic:

Molar mass Al = 27 g/mol: moles Al = 18.5/27 = 0.685 mol. From stoichiometry: 4 mol Al → 2 mol Al₂O₃, so mol Al₂O₃ = 0.685/2 = 0.3425 mol. Molar mass Al₂O₃ = 102 g/mol: mass = 0.3425×102 = 34.94 g ≈ 34.9 g.

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Bio-Technology QUESTION #10595

Question 6

L-Lysine overproduction in C. glutamicum is achieved by deregulating the aspartate pathway. A key mutation required is:

Deletion of the aconitase gene to block the TCA cycle
A feedback-insensitive (desensitised) aspartokinase that is no longer inhibited by lysine + threonine✔️
Overexpression of the glutamate dehydrogenase gene
Introduction of a heterologous arginine biosynthesis pathway

Correct Answer Logic:

In wild-type C. glutamicum, aspartokinase is subject to concerted feedback inhibition by both lysine AND threonine simultaneously. Mutations creating a feedback-insensitive aspartokinase allow carbon flux to continue through the aspartate pathway even when lysine accumulates. Additional engineering includes deletion of competing branches (homoserine dehydrogenase to block threonine synthesis), amplifying lysine-specific enzymes. This rational metabolic engineering produces >100 g/L lysine.

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Civil Procedure QUESTION #3739

Question 7

During a trial, a lawyer wants to show a witness a document to help them remember a detail they have forgotten. After looking at the document, the witness says, 'Oh yes, I remember now.' The lawyer then tries to introduce the document itself into evidence. Is the document admissible?

Yes, as 'Past Recollection Recorded.'
No, under 'Refreshing Recollection,' the document itself is not usually admissible as evidence by the party using it to refresh.✔️
Yes, because the witness authenticated it.
No, unless it's a 'Business Record.'

Correct Answer Logic:

Under Rule 612 (Refreshing Recollection), the adverse party can have the writing produced and introduced, but the party using it to refresh the witness's memory generally cannot introduce it as an exhibit (unless it meets another exception like 803(5)).

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Reading and Writing (Module-1) QUESTION #10451

Question 8

The physicist's calculations were so ------- that they ------- decades of previously accepted theory almost overnight.

trivial . . reinforced
groundbreaking . . overturned✔️
derivative . . confirmed
inconclusive . . validated

Correct Answer Logic:

Calculations significant enough to change accepted theory are 'groundbreaking' and 'overturned' the old theory.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3671

Question 9

The 'Peltate' leaf of 'Podophyllum' is used as a:

Vitamin
Anticancer and Purgative agent✔️
Flavor
Dye

Correct Answer Logic:

Podophyllum resin is used for warts and some cancers.

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Math Physics Chemistry Biology QUESTION #11391

Question 10

During the menstrual cycle, after the female gamete is released from the ovary in the ovulation, the remains of the ovary is:

FSH
LH
Corpus luteum✔️
Testosterone

Correct Answer Logic:

After ovulation, the ruptured follicle transforms into the corpus luteum ('yellow body'). Under LH stimulation, the corpus luteum secretes progesterone and estrogen to maintain the uterine lining for potential implantation. If fertilization does not occur, the corpus luteum degenerates (corpus albicans) and hormone levels fall, triggering menstruation.

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English QUESTION #7646

Question 11

Beauty and the beast:

Of opposite sex
A perpetually mismatched status
A lovely woman with an ugly man✔️
None of these

Correct Answer Logic:

'Beauty and the beast' is an idiom that refers to a pairing of a beautiful woman with an unattractive man, or more broadly, any stark contrast between two people or things. It comes from the classic fairy tale and represents an unlikely or contrasting pair.

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Math Physics Chemistry Biology QUESTION #4280

Question 12

Enzyme activity decreases at very low or high pH because:

Substrate concentration increases
Enzymes become denatured✔️
Product formation increases
Temperature becomes constant

Correct Answer Logic:

Extreme pH values alter the ionization of amino acid R-groups at the active site, causing the enzyme to denature and lose its specific 3D shape.

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Molecular Biology / Bioinformatics / Biochemistry QUESTION #11118

Question 13

Apart from hearing, what other major physiological function does the ear perform?

Nerve pressure reduction
Hormone secretion
Body balancing (equilibrium)✔️
All of these

Correct Answer Logic:

The inner ear performs two major functions: hearing (via the cochlea) and body balancing/equilibrium (via the vestibular apparatus). The vestibular system includes: (1) semicircular canals — detect rotational acceleration of the head in three planes, and (2) utricle and saccule (otolith organs) — detect linear acceleration and static head position relative to gravity. Damage to the vestibular system causes vertigo, dizziness, and loss of balance.

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The Elections Act 2017 QUESTION #9463

Question 14

Section 160(2) provides that after disposal of an election petition, the Election Tribunal must forward the record to the Commission. The Commission retains this record for:

Three years or until disposal of any appeal
Two years from date of receipt
Five years from the date of its receipt or till disposal of appeal against the Tribunal's decision✔️
One year from the date of its receipt

Correct Answer Logic:

Section 160(2) states: 'The Commission shall retain it for a period of five years from the date of its receipt or till the disposal of appeal against the decision of the Tribunal, if any, and shall thereafter cause it to be destroyed.'

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Journalism / Mass Communication QUESTION #6403

Question 15

The textbook lists several effects of communication on human society. Which of the following effects is described as being observable even 'beyond the limits of time and space'?

Relaxation and entertainment
Communication effects that extend beyond present activities — ideas generated at one time in history may be materialised in physical form at another stage; scientific discoveries accumulate across generations✔️
The immediate relationship-building effect between individuals
The persuasion effect of political speeches on immediate audiences

Correct Answer Logic:

The textbook makes a philosophically profound point about the temporal dimensions of communication effects: “Effects of communication are not limited to present day activities but as a matter of fact they go beyond the limits of time and space.” The primary example given is scientific discovery: many scientists who theorised about electromagnetic waves in the 19th century could not prove their theories in their lifetimes, yet they communicated their ideas through publications. Other scientists built on this accumulated communication, eventually enabling inventions like radio. This illustrates how a single communicative act (a scientist's paper, an artist's manuscript, a philosopher's treatise) can have effects across centuries. The textbook gives another example: a medical researcher sharing a small discovery that, through the global communication network, reaches scientists thousands of miles away and contributes to a cure for a disease. Communication, therefore, is cumulative across time and space.

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