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Physics QUESTION #1055

A wire of resistance $R$ is cut into 8 equal pieces. Four pieces in parallel form one equivalent resistance, and two such sets in series. Net effective resistance:

$\dfrac{R}{16}$
$\dfrac{R}{8}$
$\dfrac{R}{64}$
$\dfrac{R}{32}$✔️

Correct Answer Logic:

Each piece has resistance $R/8$. Four in parallel: $R_p = \frac{R/8}{4} = \frac{R}{32}$. Two such sets in series: $R_{total} = 2\times\frac{R}{32} = \frac{R}{16}$. Wait: $\frac{R/8}{4}=\frac{R}{32}$, then $2\times\frac{R}{32}=\frac{R}{16}$. So answer is $R/16$ = option (1). Re-check: each piece $=R/8$, 4 in parallel $=\frac{R/8}{4}=\frac{R}{32}$, 2 in series $=\frac{2R}{32}=\frac{R}{16}$. Answer: option (1) = $R/16$.

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Math Physics Chemistry Biology QUESTION #7740

Question 2

Cells found within the lacunae of bone matrix are called:

Chondrocytes
Osteoblasts
Osteocytes✔️
Osteoclasts

Correct Answer Logic:

Osteocytes are mature bone cells that reside in lacunae. Chondrocytes are in cartilage. Osteoblasts build bone; osteoclasts break down bone.

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The Elections Act 2017 QUESTION #9451

Question 3

Under Section 99(7), the Commission shall retain election documents deposited by Returning Officers for a period of one year, after which they shall be destroyed subject to court orders. However, documents from a constituency where an election petition has been filed shall be retained:

For two years from deposit
Until the election petition is filed
Till final disposal of the election petition✔️
For five years from deposit

Correct Answer Logic:

Section 99(7) proviso states: 'the documents of a constituency where election petition has been filed by a candidate shall be retained till final disposal of the election petition.'

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Ability / HR / Governance / Special Education QUESTION #1913

Question 4

Under Rule 5(6) which officers are permitted to take initiative in approaching a Minister on official business?

Officers of BPS-17 and above
Section Officers and above
Only a Secretary Additional Secretary or Joint Secretary✔️
Deputy Secretary and above

Correct Answer Logic:

Rule 5(6) restricts the initiative of approaching a Minister to Secretaries Additional Secretaries and Joint Secretaries only. An Additional/Joint Secretary must also communicate the points made to the Secretary at the first opportunity.

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Maths QUESTION #2900

Question 5

A train moves at $72$ km/h. Its speed in m/s is:

15 m/s
20 m/s✔️
25 m/s
30 m/s

Correct Answer Logic:

Conversion: $72 \times (5/18) = 4 \times 5 = 20$ m/s.

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General Knowledge QUESTION #2598

Question 6

Before modern keyboards and monitors existed, early computers used which input method to automatically perform calculations without manual data entry?

Magnetic disks
Punch cards✔️
Touchscreens
Optical scanners

Correct Answer Logic:

Punch cards were a sequence of cards with holes in them used to automatically perform calculations instead of manually entering them by hand. They were one of the earliest forms of computer input, used from the 19th century through the 1970s.

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Math Physics Chemistry Biology QUESTION #11340

Question 7

Which of the following is a type of RNA that carries amino acids to the ribosome during protein synthesis?

mRNA
tRNA✔️
rRNA
snRNA

Correct Answer Logic:

tRNA (transfer RNA) carries amino acids to the ribosome during protein synthesis.

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English QUESTION #7647

Question 8

Antonyms and Synonyms:
Which word is the antonym of "Splenetic"?

Calm
Casual
Genial✔️
None of these

Correct Answer Logic:

'Splenetic' means bad-tempered, irritable, or spiteful. The antonym would be 'Genial', which means friendly, cheerful, and pleasant. While 'calm' is also opposite in nature, 'genial' is the better antonym as it represents the positive temperament opposite to the negative irritability of 'splenetic'.

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CISA QUESTION #6819

Question 9

In evaluating separation of duties within an IT department, an auditor finds that the database administrator has both production library access and the authority to approve changes. What is the PRIMARY risk?

Inefficient change management
Unauthorized changes could be implemented without detection✔️
Delayed system updates
Increased operational costs

Correct Answer Logic:

Separation of duties requires that authorization be separated from execution. When the same person who can approve changes also has access to implement them, they can bypass controls and execute unauthorized modifications without independent verification, creating fraud risk and control circumvention.

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General Knowledge QUESTION #177

Question 10

Saudi Arabia re-established diplomatic relations with Iran on:

Dec 10, 2023
May 10, 2023
March 10, 2023✔️
None of these

Correct Answer Logic:

The China-brokered deal was announced on March 10, 2023.

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Accounting & Finance QUESTION #6051

Question 11

A business records a credit sale of Rs. 350 (no cash involved) using accrual accounting. How will this transaction be reflected in the financial statements?

Rs. 350 would appear on the balance sheet as a sale
Rs. 350 would appear on the income statement as a sale✔️
Rs. 350 would appear on the statement of cash flows as a cash outflow
The transaction would not be reported since no cash was exchanged

Correct Answer Logic:

Under accrual accounting, revenue is recognized when it is earned, not when cash is received. A credit sale of Rs. 350 means the business has earned the revenue, so it is recorded in the income statement as sales revenue. The receivable (Rs. 350) is recorded on the balance sheet as an asset, but the sale itself appears on the income statement. Cash-basis accounting would delay recognition until cash is received, but accrual accounting does not.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3288

Question 12

'HEPA' filters are used in pharmacy clean rooms to remove particles from:

Water
Air✔️
Oil
Glassware

Correct Answer Logic:

High-Efficiency Particulate Air (HEPA) filters remove $99.97\%$ of particles $\ge 0.3~\mu\text{m}$.

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Security Measures to Maintain Law and Order QUESTION #7676

Question 13

Which of the following is a major objective of the National Internal Security Policy?

Promotion of tax reforms
Protection of critical infrastructure and public places✔️
Establishment of foreign embassies
None of these

Correct Answer Logic:

The National Internal Security Policy of Pakistan focuses on protecting critical infrastructure, public places, and citizens from terrorism and security threats. It aims to strengthen internal security through counter-terrorism, law enforcement, and protection of vital installations.

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Islamic Studies QUESTION #637

Question 14

The Messenger of Allah (ﷺ) stood in respect for the funeral of a:

Polytheist
Jew✔️
Christian
None of these

Correct Answer Logic:

A famous Hadith records the Prophet (ﷺ) standing for the funeral of a Jew out of respect for humanity.

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Medicinal Chemistry and Biopharmaceutics QUESTION #3827

Question 15

What is the purpose of adding sodium metabisulphite to epinephrine (adrenaline) injection formulations?

Suspending agent
Fungicide
Antioxidant✔️
Bactericide

Correct Answer Logic:

Sodium metabisulphite is an antioxidant added to prevent the oxidative degradation of epinephrine, which is highly susceptible to oxidation. It preserves potency and shelf life.

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Maths QUESTION #2848

Question 16

A and B together can complete a piece of work in 6 days. A alone can do it in 10 days. In how many days can B alone complete it?

12 days
15 days✔️
18 days
20 days

Correct Answer Logic:

A and B together: $\dfrac{1}{6}$ per day. A alone: $\dfrac{1}{10}$ per day. B alone $= \dfrac{1}{6} - \dfrac{1}{10} = \dfrac{5-3}{30} = \dfrac{2}{30} = \dfrac{1}{15}$. So B alone takes 15 days.

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Quantitative Reasoning QUESTION #7213

Question 17

The straightforward, non-ironic portrayal of everyday objects is (i)_____ serious American art of the twentieth century: “high” artists surrendered the direct depiction of the (ii)_____ to illustrators, advertisers, and packaging designers.

Blank (i)	Blank (ii)
A. missing from	D. beautiful
B. valued in	E. commonplace
C. crucial to	F. complex

Blank (i) = missing from, ,Blank (ii) = commonplace✔️
Blank (i) = valued in, Blank (ii) = beautiful
Blank (i) = crucial to, Blank (ii) = complex
Blank (i) = missing from, Blank (ii) = beautiful

Correct Answer Logic:

This two-blank sentence requires logical consistency between both answers.

Blank (i): The second clause tells us that “high” artists ceded (gave up) the depiction of everyday objects to commercial artists. This implies that depicting ordinary things was not part of serious American art. So Blank (i) = missing from.

“Valued in” or “crucial to” would directly contradict the idea that high artists abandoned this type of depiction.

Blank (ii): The artists surrendered the depiction of objects from everyday life — these are ordinary and unremarkable objects, i.e., commonplace.