Reading Mode - Questions

List I	List II
(A) Spring constant	(1) $M^1L^2T^{-2}$
(B) Pascal (unit of pressure)	(2) $M^0L^0T^{-1}$
(C) Hertz (unit of frequency)	(3) $M^1L^0T^{-2}$
(D) Joule (unit of energy)	(4) $M^1L^{-1}T^{-2}$

Choose the correct matching:

A-3, B-4, C-2, D-1
A-4, B-3, C-1, D-2
A-4, B-3, C-2, D-1✔️
A-3, B-4, C-1, D-2

Correct Answer Logic:

Spring constant $k$: $F = kx \Rightarrow [k] = \frac{[F]}{[x]} = \frac{MLT^{-2}}{L} = MT^{-2} = M^1L^0T^{-2}$ → (3)
Pascal (pressure): $[P] = \frac{Force}{Area} = \frac{MLT^{-2}}{L^2} = ML^{-1}T^{-2} = M^1L^{-1}T^{-2}$ → (4)
Hertz (frequency): $[f] = T^{-1} = M^0L^0T^{-1}$ → (2)
Joule (energy): $[E] = ML^2T^{-2} = M^1L^2T^{-2}$ → (1)

Correct match: A-3, B-4, C-2, D-1

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English QUESTION #2781

Question 3585

What does the PHRASAL VERB 'BREAK DOWN' mean?

To demolish a building forcefully
To stop functioning / to lose emotional control✔️
To reduce the price of something
To separate from a group

Correct Answer Logic:

'Break down' is a phrasal verb with two main meanings: (1) a machine stops working, or (2) a person loses emotional control and cries. Example: 'The car broke down on the highway.'

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General Knowledge QUESTION #8268

Question 3586

What is a hybrid computer best described as?

Resembles a digital computer
Resembles an analogue computer
Resembles both a digital and analogue computer✔️
None of these

Correct Answer Logic:

A hybrid computer combines features of both digital and analog computers.

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Security Measures to Maintain Law and Order QUESTION #7678

Question 3587

Intelligence Bureau (IB) is a civilian intelligence agency assigned the task of:

Counter intelligence for internal security✔️
Surveillance at the borders
Maintain political stability
None of these

Correct Answer Logic:

The Intelligence Bureau (IB) is Pakistan's premier civilian intelligence agency responsible for internal security, counter-intelligence, and gathering intelligence on internal threats. It works to prevent espionage, terrorism, and threats to national security within Pakistan's borders.

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Library Sciences QUESTION #1561

Question 3588

Resource Description and Access (RDA) replaces which earlier cataloguing code and is structured around which conceptual model?

AACR1; MARC 21
ISBD; Dublin Core
AACR2; FRBR (Functional Requirements for Bibliographic Records)✔️
AACR2; UNIMARC

Correct Answer Logic:

RDA was developed as a successor to AACR2, structured around the FRBR (Functional Requirements for Bibliographic Records) and FRAD (Functional Requirements for Authority Data) conceptual models. It focuses on describing resources and their relationships rather than prescribing card-catalogue-era physical formats.

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Dairy Food Science and Technology QUESTION #5946

Question 3589

Microfiltration (MF) applied to skim milk in dairy processing achieves:

Complete removal of bacteria and spores ($>99.9\%$ bacterial reduction) producing ESL (extended shelf-life) milk✔️
Concentration of whey proteins
Hydrolysis of lactose
Reduction of fat content to zero

Correct Answer Logic:

Microfiltration of skim milk using $1.4\;\mu\text{m}$ ceramic membranes (Bactocatch process) achieves $>99.9\%$ reduction of bacteria and spores, producing ESL milk with refrigerated shelf life of $45\text{–}60+$ days vs. $15\text{–}21$ days for HTST milk.

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Civil Engineering QUESTION #2127

Question 3590

Manning's equation for open channel flow is $V = \dfrac{1}{n} R^{2/3} S^{1/2}$. The Manning's roughness coefficient $n$ for a clean, straight natural river channel is approximately in the range:

0.008–0.010
0.011–0.014
0.025–0.035✔️
0.050–0.080

Correct Answer Logic:

Manning's $n$ values: smooth concrete 0.011–0.013; clean, straight natural channel 0.025–0.033; winding natural channel with some pools 0.035–0.050; very weedy/brushy channels 0.075–0.150. A clean, straight natural river typically has $n \approx 0.025–0.035$. These values are critical for flood routing, channel design, and backwater curve computations in hydraulic engineering.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5700

Question 3591

The 'White's Method' is used in the calculation of which of the following?

Eutectic point
Isotonicity✔️
Body Surface Area
Displacement value

Correct Answer Logic:

White's method is a volume-based method used to adjust the tonicity of pharmaceutical solutions.

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Mathematics QUESTION #969

Question 3592

Let $f(x) = \displaystyle\int_0^{x^2} \dfrac{t^2-8t+15}{e^t}\,dt,\ x \in \mathbb{R}$. Then the numbers of local maximum and local minimum points of $f$, respectively, are:

2 and 3✔️
2 and 2
3 and 2
1 and 3

Correct Answer Logic:

$f'(x)=\frac{x^4-8x^2+15}{e^{x^2}}\cdot 2x = \frac{2x(x^2-3)(x^2-5)}{e^{x^2}}$. Roots: $x=0, \pm\sqrt{3}, \pm\sqrt{5}$. Analyzing sign changes: 2 local maxima (at $\pm\sqrt{3}$) wait — checking signs carefully gives 2 local maxima and 3 local minima.

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Math Physics Chemistry Biology QUESTION #4302

Question 3593

Which of the following blood vessels have the lowest blood velocity, with correct reason?

Arteries: Due to thick walls
Capillaries: due to highest overall cross-sectional area✔️
Veins: due to blood flow against gravity
Capillaries: Due to two-way blood flow in capillaries

Correct Answer Logic:

Blood velocity is lowest in capillaries because the total cross-sectional area of all capillaries combined is the greatest, so by continuity, blood slows down significantly.

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General Knowledge QUESTION #276

Question 3594

___________ is the Nigerian Currency.

Nigerian Dollar
Nigerian Lira
Nigerian Naira✔️
None of these

Correct Answer Logic:

The Naira (₦) is the official currency of Nigeria.+1

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Law QUESTION #9496

Question 3595

In execution proceedings, the judgment-debtor B claims that the decree has been satisfied by an agreement between himself and the original decree-holder, who has since died. B seeks to raise this in the execution proceedings. The legal representative of the deceased decree-holder insists a separate suit is required. Which forum is correct?

The High Court must certify the satisfaction
The question must be decided by the Court that passed the original decree
B can raise the plea of discharge or satisfaction of the decree in the execution proceedings themselves; all questions relating to execution, discharge or satisfaction of the decree are to be determined by the executing Court under Section 47 CPC✔️
B must file a separate suit to prove discharge of the decree

Correct Answer Logic:

Section 47(1) CPC provides that all questions arising between the parties to a suit in which the decree was passed, or their representatives, relating to the execution, discharge or satisfaction of the decree, shall be determined by the Court executing the decree and not by a separate suit.

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Education QUESTION #1475

Question 3596

According to Abdul Halim El-Muhammady (1993), the purpose of education is to produce individuals willing to take on the responsibility of:

Teachers and scholars
Scientists and engineers
Caliphs (successors of Prophet Muhammad)✔️
Government officials

Correct Answer Logic:

El-Muhammady stated that the purpose of education is to produce righteous individuals willing to take on the responsibility of the caliphs entrusted by Allah to lead us to happiness in this world and the next.

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Mathematics QUESTION #6941

Question 3597

Matrix $A = \begin{pmatrix}1&2&2\\2&1&-2\\a&2&b\end{pmatrix}$ satisfies $AA^T = 9I$, where $I$ is the $3\times3$ identity matrix. Find the ordered pair $(a, b)$.