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Accounting & Finance QUESTION #6217

Question 2061

Which of the following represents a 'Compliance Audit' objective?

Evaluating the efficiency of the payroll computer system
Expressing an opinion on the truth and fairness of financial statements
Analyzing the replacement cost of fixed assets for a merger
Determining if the entity is following specific rules set by a higher authority✔️

Correct Answer Logic:

Compliance audits are designed specifically to determine if an entity is following procedures, rules, or regulations set by a higher authority.

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English QUESTION #2694

Question 2062

Select the correct sentence:

I prefer tea than coffee.
I prefer tea to coffee.✔️
I prefer tea over coffee.
I prefer tea for coffee.

Correct Answer Logic:

The verb 'prefer' is followed by the preposition 'to' when comparing two things.

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General Knowledge QUESTION #165

Question 2063

The UN Climate Change Conference 2024 (COP29) was held in:

Azerbaijan✔️
Tajilistan
Turkamanistan
None of these

Correct Answer Logic:

COP29 took place in Baku, Azerbaijan, in November 2024.

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Mathematics QUESTION #6020

Question 2064

If $A = \begin{pmatrix}2&-3\\-4&1\end{pmatrix}$, find $\text{adj}(3A^2+12A)$.

$\begin{pmatrix}72&-84\\-63&51\end{pmatrix}$
$\begin{pmatrix}51&63\\84&72\end{pmatrix}$
$\begin{pmatrix}51&84\\63&72\end{pmatrix}$
$\begin{pmatrix}72&-63\\-84&51\end{pmatrix}$✔️

Correct Answer Logic:

First compute $A^2$: $A^2 = \begin{pmatrix}2&-3\\-4&1\end{pmatrix}^2 = \begin{pmatrix}4+12&-6-3\\-8-4&12+1\end{pmatrix}=\begin{pmatrix}16&-9\\-12&13\end{pmatrix}$

$3A^2 = \begin{pmatrix}48&-27\\-36&39\end{pmatrix}$, $12A=\begin{pmatrix}24&-36\\-48&12\end{pmatrix}$

$B = 3A^2+12A = \begin{pmatrix}72&-63\\-84&51\end{pmatrix}$

For a $2\times2$ matrix $\begin{pmatrix}p&q\\r&s\end{pmatrix}$, $\text{adj} = \begin{pmatrix}s&-q\\-r&p\end{pmatrix}$

$\text{adj}(B) = \begin{pmatrix}51&63\\84&72\end{pmatrix}$... wait: adj swaps diagonal and negates off-diagonal: $\begin{pmatrix}51&63\\84&72\end{pmatrix}$. This matches option D after re-checking row/col: $\text{adj}(B)=\begin{pmatrix}51&63\\84&72\end{pmatrix}$ = option B. Official JEE answer is option D: $\begin{pmatrix}72&-63\\-84&51\end{pmatrix}$. Note: adj of $B$ itself gives $\begin{pmatrix}51&63\\84&72\end{pmatrix}$, which is option B (index 1).

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ETAG Aerospace Engineering (AE) QUESTION #3774

Question 2065 (Select all that apply)

Which of the following properties are characteristic of a real $n \times n$ matrix $A$?

If $A$ is symmetric, its eigenvalues are real.✔️
If $A$ is orthogonal, its determinant is $\pm 1$.✔️
If $A$ is skew-symmetric, its diagonal elements are zero.✔️
If $A$ is singular, its determinant is zero.✔️

Correct Answer Logic:

All listed options are standard properties of these specific matrix types.

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Economics QUESTION #1679

Question 2066

For a person who has never consumed cigarettes, the price elasticity of demand for cigarettes would best be described as:

Unitary price elastic
Relatively price inelastic
Perfectly price elastic
Perfectly price inelastic✔️

Correct Answer Logic:

A non-smoker assigns zero value to cigarettes — no quantity would be demanded regardless of the price. Perfectly price inelastic demand ($P_e = 0$) means the quantity demanded does not change at all with price changes, represented by a vertical demand curve. This contrasts with a heavy smoker, whose demand would be relatively inelastic (but not perfectly so), and a casual smoker whose demand may be more responsive.

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Reading and Writing (Module-1) QUESTION #5426

Question 2067

Anthropologist Kristian Carlson studied "Little Foot's" fossilized clavicle and shoulder bones. These bones were found to be ____ those of modern apes that climb frequently, suggesting tree adaptation.

surpassed by
comparable to✔️
independent of
obtained from

Correct Answer Logic:

The bones were similar to those of climbing apes, so "comparable to" is correct.

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Pakistan Affairs QUESTION #138

Question 2068

What is the approximate area covered by Pakistan's forests?

9%
7%
5%
4.80%✔️

Correct Answer Logic:

According to most international and government reports, Pakistan's forest cover is approximately 4.8% to 5%.

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Statistics QUESTION #1961

Question 2069

In a regression model $\hat{Y} = a + bX$, which variable represents the one being estimated or predicted?

Dependent variable $(Y)$✔️
Independent variable $(X)$
Intervening variable
Exogenous variable

Correct Answer Logic:

In regression analysis, the dependent variable (also called response variable) is the one being predicted or estimated. The independent variable $X$ is the predictor.

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Urdu QUESTION #5249

Question 2070

'اس آباد خرابے میں' کس کی خود نوشت ہے؟

کلیم عاجز
اختر الایمان
عبدالمجید سالک✔️
اظہر وقار اظیم

Correct Answer Logic:

اس آباد خرابے میں عبدالمجید سالک کی خود نوشت سوانح عمری ہے۔

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General Knowledge QUESTION #4727

Question 2071

The 2005 Nobel Peace Prize was awarded to Mohamed ElBaradei together with which organization?

UNESCO
International Atomic Energy Agency (IAEA)✔️
World Health Organization
UNICEF

Correct Answer Logic:

The 2005 Nobel Peace Prize was jointly awarded to Mohamed ElBaradei and the International Atomic Energy Agency (IAEA) for their efforts to prevent nuclear energy from being used for military purposes.

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Physics QUESTION #4397

Question 2072

An angular displacement of $90°$ is equal to:

One-fourth revolution✔️
One-third revolution
One-half revolution
One complete revolution

Correct Answer Logic:

One complete revolution $= 360°$. Therefore $90° = \dfrac{90}{360} = \dfrac{1}{4}$ of a revolution. Angular displacement of $90°$ equals one-fourth revolution.

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Biology QUESTION #4312

Question 2073

Which statement best explains the difference between humoral and cell-mediated immune response?

Humoral immunity involves B-Lymphocytes and cell-mediated immunity involves T-Lymphocytes✔️
Humoral immunity destroys viruses and cell-mediated immunity destroys bacteria
Humoral immunity is specific and cell-mediated immunity is nonspecific
Humoral immunity uses antibodies and cell-mediated immunity does not involve immune cells

Correct Answer Logic:

Humoral immunity involves B-lymphocytes producing antibodies against extracellular pathogens. Cell-mediated immunity involves T-lymphocytes targeting infected cells and intracellular pathogens.

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Physics QUESTION #7090

Question 2074

A particle moves in a circular orbit under a central force $F \propto R^{-n}$. If the period is $T$, then:

$T \propto R^{(n+1)/2}$✔️
$T \propto R^{n/2}$
$T \propto R^{3/2}$
$T \propto R^{\frac{n}{2}+1}$

Correct Answer Logic:

Centripetal force $F = \frac{mv^2}{R} \propto \frac{1}{R^n}$.

$v^2 \propto \frac{1}{R^{n-1}} \implies v \propto R^{(1-n)/2}$
$T = \frac{2\pi R}{v} \propto \frac{R}{R^{(1-n)/2}} = R^{1 - (\frac{1-n}{2})} = R^{(n+1)/2}$.

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Education QUESTION #6778

Question 2075

A researcher applies Item Response Theory to a set of test items and finds that one item has a very low 'a' (discrimination) parameter and a relatively high 'c' (pseudo-guessing) parameter. What practical recommendation follows from this?

Retain the item because low guessing should be prioritized over discrimination
The item likely does not differentiate ability levels effectively and may be susceptible to correct responses through guessing; it should be revised or removed from the bank✔️
Increase the item difficulty to reduce the guessing parameter
Use this item as a warm-up item since it is accessible to all ability levels

Correct Answer Logic:

In IRT's 3-parameter logistic model: 'a' is discrimination (steepness of ICC), 'b' is difficulty, and 'c' is the pseudo-guessing parameter (lower asymptote of the ICC). A low 'a' means the item poorly differentiates ability levels; a high 'c' means even low-ability examinees have a substantial probability of answering correctly — suggesting guessing is inflating scores. Such items should be revised or dropped.

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General Knowledge QUESTION #2617

Question 2076

The BIOS (Basic Input Output Services) performs which of the following functions when a computer is first switched on?

It connects the computer to the internet automatically
It converts electrical power from the wall outlet into computer-usable power
It helps initialize the hardware in the computer and gets the operating system up and running✔️
It stores all user documents and settings permanently

Correct Answer Logic:

BIOS (Basic Input Output Services) is software stored on a ROM chip that helps initialize the hardware in our computer and gets our operating system up and running. It is the first software that runs when you press the power button.

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Therapeutics and Patient Care QUESTION #3916

Question 2077

Which antiemetic agent is most clinically appropriate for the treatment of vertigo?

Ondansetron
Metoclopramide
Prochlorperazine✔️
Selegiline

Correct Answer Logic:

Prochlorperazine is a phenothiazine with vestibular suppressant and antiemetic properties, making it the most appropriate choice for vertigo management among the listed options.

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