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English QUESTION #7636

Question 2061

Choose the correctly punctuated sentence:

The meeting is scheduled for 3:00 p.m. on Tuesday October 5th.✔️
The meeting is scheduled for 3:00 p.m. on Tuesday October 5th
The meeting is scheduled for 3:00 p.m. on Tuesday October 5th.
None of these

Correct Answer Logic:

The correct punctuation includes a comma after 'Tuesday' to separate the day from the date, and a period after 'p.m.' which is an abbreviation. Option A properly punctuates the time and includes necessary commas for date formatting.

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Math Physics Chemistry Biology QUESTION #7763

Question 2062

Which statement about plasmids in streptococci is NOT true?

Carry fewer genes than chromosome
Replicate autonomously
They are genetic elements
The bacterial chromosome depends on plasmids for replication✔️

Correct Answer Logic:

Plasmids are extrachromosomal DNA elements that replicate independently; the chromosome does not depend on them. They carry non-essential genes (e.g., antibiotic resistance).

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General Knowledge QUESTION #8906

Question 2063

Famous Punjabi poet Waris Shah wrote his epic 'Heer Ranjha' while living in which town?

Harbanspura
Malka Hans✔️
Takht Hazara
Jhang

Correct Answer Logic:

Waris Shah lived in Malka Hans.

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English QUESTION #8577

Question 2064

What does the phrase 'thinking out of the box' mean?

It is necessary to sit in a box and then come out
You must not exercise your imagination but focus on facts only
You have to use your creativity to think differently✔️
None of the above

Correct Answer Logic:

'Think out of the box' means to think creatively and unconventionally.

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General Knowledge QUESTION #4710

Question 2065

The Millennium Challenge Account created by President George W. Bush was aimed at achieving which purpose?

Improving national security network
Providing financial aid to Iraq and Afghanistan
Helping poor countries pursuing democratic ideals✔️
Funding military operations worldwide

Correct Answer Logic:

The Millennium Challenge Account (MCA), created in 2004, was designed to provide development assistance to poor countries that demonstrate commitment to democratic governance, economic freedom, and investing in citizens.

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Chemistry QUESTION #5535

Question 2066

For a reaction $aA+bB\to cC+dD$, the plot of $\log k$ vs $\frac{1}{T}$ is a straight line with slope $= -10000\ K$. Given that the rate constant is $10^{-5}\ s^{-1}$ at 500 K, find the temperature (in K) at which the rate constant equals $10^{-4}\ s^{-1}$. (Round to nearest integer)

526 K
556 K✔️
600 K
1000 K

Correct Answer Logic:

Using the Arrhenius equation in log form: $\log\frac{k_2}{k_1} = \frac{-\text{slope}}{2.303}\left(\frac{1}{T_2}-\frac{1}{T_1}\right)\cdot2.303$. Since slope of $\log k$ vs $\frac{1}{T}$ is $-\frac{E_a}{2.303R} = -10000$, then $E_a = 10000\times2.303\times8.314$. Using $\log\frac{10^{-4}}{10^{-5}} = -10000\left(\frac{1}{T_2}-\frac{1}{500}\right)$: $1 = -10000\left(\frac{1}{T_2}-0.002\right) \Rightarrow \frac{1}{T_2} = 0.002-0.0001 = 0.0018 \Rightarrow T_2 \approx 556\ K$.

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Mathematics QUESTION #6045

Question 2067

Find the number of common tangents to the circles $x^2+y^2-4x-6y-12=0$ and $x^2+y^2+6x+18y+26=0$.

1
2
3✔️
4

Correct Answer Logic:

Circle 1: centre $C_1=(2,3)$, $r_1=\sqrt{4+9+12}=5$.

Circle 2: centre $C_2=(-3,-9)$, $r_2=\sqrt{9+81-26}=8$.

Distance $|C_1C_2|=\sqrt{(2+3)^2+(3+9)^2}=\sqrt{25+144}=\sqrt{169}=13$.

Since $|C_1C_2|=13=r_1+r_2=5+8$, the circles are externally tangent. Externally tangent circles have exactly 3 common tangents.

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General Knowledge QUESTION #8653

Question 2068

In stock market terminology, what do 'bears' and 'bulls' refer to?

Jungle code
Stock market trends (fall and rise)✔️
Price rise and fall only
None of above

Correct Answer Logic:

Bears indicate falling prices; bulls indicate rising prices.

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Professional QUESTION #1831

Question 2069

Under Section 9(3), promotion to posts in basic pay scales 20 and 21 and equivalent shall be made on the recommendations of a Selection Board. Who heads this Selection Board?

The Federal Secretary of the relevant Ministry
The Chief Secretary of the concerned Province
The Chairman, Federal Public Service Commission✔️
The Principal Accounting Officer of the Ministry

Correct Answer Logic:

Section 9(3) added by Ordinance No. XLIII of 2000 specifies that promotion to posts in BPS-20 and 21 and equivalent shall be made on the recommendations of a Selection Board which shall be headed by the Chairman, Federal Public Service Commission — not a Ministry or Division official.

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Physics QUESTION #983

Question 2070

A small rigid spherical ball of mass $M$ is dropped in a long vertical tube containing glycerine. The velocity becomes constant after some time. If the density of glycerine is half the density of the ball, then the viscous force acting on the ball is:

2Mg
Mg
$\dfrac{3}{2}Mg$
$\dfrac{Mg}{2}$✔️

Correct Answer Logic:

At terminal velocity: Viscous force $= W - F_b$. Buoyancy $F_b = \rho_{glycerine} \cdot V \cdot g = \frac{1}{2}\rho_{ball} \cdot V \cdot g = \frac{Mg}{2}$. So Viscous force $= Mg - \frac{Mg}{2} = \frac{Mg}{2}$.

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MCQs Section QUESTION #4910

Question 2071

A proposal has been made to trim the horns from rhinoceroses to discourage poachers; the question is _____ rhinoceroses after their horns are trimmed.

whether tourists will continue to visit game parks and see rhinoceroses after their horns are
whether tourists will continue to visit game parks to see one once their horns are
whether tourists will continue to visit game parks to see rhinoceroses once the animals' horns have been✔️
if tourists will continue to visit game parks and see rhinoceroses once the animals' horns are

Correct Answer Logic:

Whether' (not 'if') is proper in indirect questions. 'The animals' horns' eliminates the ambiguous pronoun 'their' (whose horns — tourists' or rhinoceroses'?). 'To see rhinoceroses' (infinitive of purpose) is more precise than 'and see.' Options D and E incorrectly use 'if.' Options A and B retain ambiguous 'their.'

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Physics QUESTION #380

Question 2072

A standing wave pattern is formed when the length of string is an integral multiple of __________ wavelength.

Triple
Full
Half✔️
Double

Correct Answer Logic:

Standing waves form at L = n?/2

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Reading and Writing (Module-1) QUESTION #5399

Question 2073

The mimosa tree evolved in East Asia, where the beetle Bruchidius terrenus preys on its seeds. In 1785, mimosa trees were introduced to North America, far from any B. terrenus. But evolutionary links between predators and their prey can persist across centuries and continents. Around 2001, B. terrenus was introduced in southeastern North America near where botanist Shu-Mei Chang and colleagues had been monitoring mimosa trees. Within a year, 93 percent of the trees had been attacked by the beetles. Which choice best describes the function of the third sentence in the overall structure of the text?

It states the hypothesis that Chang and colleagues had set out to investigate using mimosa trees and B. terrenus.
It presents a generalization that is exemplified by the discussion of the mimosa trees and B. terrenus.✔️
It offers an alternative explanation for the findings of Chang and colleagues.
It provides context that clarifies why the species mentioned spread to new locations.

Correct Answer Logic:

The third sentence generalizes that predator-prey links persist across time and distance, which is then exemplified by the beetles attacking mimosa trees over 200 years after their separation.

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General Knowledge QUESTION #8638

Question 2074

In which century did Amir Timur (Tamerlane) invade India?

12th Century
13th Century
14th Century✔️
None of above

Correct Answer Logic:

Timur invaded India in 1398 AD (14th century).

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5751

Question 2075

Which pharmacokinetic process describes the 'reversible' movement of a drug from the bloodstream into the interstitial fluid and tissues?

Absorption
Metabolism
Excretion
Distribution✔️

Correct Answer Logic:

Drug distribution is the process by which a drug reversibly leaves the bloodstream and enters the tissues.

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Planning QUESTION #5004

Question 2076

In landscape ecology, what does 'edge effect' refer to?

Boundary between administrative zones
Ecological changes at habitat boundaries✔️
Urban-rural fringe development
Waterfront development patterns

Correct Answer Logic:

Edge effect describes changes in species composition, microclimate, and ecological processes at the boundary between two habitats (forest-field, wetland-upland). Increased fragmentation creates more edges, affecting biodiversity and ecosystem function—critical for ecological planning.

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English QUESTION #2655

Question 2077

Convert to indirect speech: 'She said, "I am busy."'

She said that I am busy.
She said that she is busy.
She said that she was busy.✔️
She says she was busy.

Correct Answer Logic:

In reported speech, the present tense ('am') changes to past tense ('was') if the reporting verb is in the past.

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Therapeutics and Patient Care QUESTION #3895

Question 2078

Which antiepileptic drug is effective against both generalised tonic-clonic seizures and generalised absence seizures?

Phenytoin
Gabapentin
Valproate✔️
Carbamazepine

Correct Answer Logic:

Sodium valproate has broad-spectrum antiepileptic activity, effective against both generalised tonic-clonic and absence seizures, making it useful for mixed seizure disorders.

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