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Math Physics Chemistry Biology QUESTION #7734

Antibiotics are effective against which of the following pathogens?

Herpes simplex
Polio
Salmonella typhi✔️
None of the above

Correct Answer Logic:

Antibiotics target bacterial structures/processes (cell wall, protein synthesis). Salmonella typhi (bacterium) causes typhoid; antibiotics work. Herpes (virus) and polio (virus) require antiviral drugs.

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Contracts QUESTION #5858

Question 1022

A Seller sends a shipment of 'FOB Seller’s City.' The goods are damaged in a train wreck. Who bears the risk of loss?

The Seller, until the goods reach the Buyer.
The Buyer, because risk passed when the goods were delivered to the carrier.✔️
The Train Company, automatically.
The Buyer and Seller share the loss.

Correct Answer Logic:

In a 'Shipment Contract' (FOB Place of Shipment), the risk of loss passes to the buyer when the goods are delivered to the carrier.

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Islamic Studies QUESTION #7887

Question 1023

What is the Nisab of Zakat for gold?

5% Tola
6% Tola✔️
7½% Tola
8½% Tola

Correct Answer Logic:

The Nisab of Zakat for gold is 7½ Tola (approximately 87.48 grams or 3 ounces). When a person possesses gold equal to or more than this amount for one lunar year, Zakat becomes obligatory at the rate of 2.5%.

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Chemistry QUESTION #7355

Question 1024

The total number of atomic orbitals present in the fourth principal energy level ($n = 4$) of an atom is:

8
16✔️
32
4

Correct Answer Logic:

Formula: Total orbitals in shell $n$ = $n^2$

For $n = 4$: $4^2 = 16$ orbitals

Breakdown:

4s: 1 orbital
4p: 3 orbitals
4d: 5 orbitals
4f: 7 orbitals
Total = 1+3+5+7 = 16

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CISA QUESTION #1727

Question 1025

What is the fundamental purpose of ISACA's professional ethics statement for IS auditors?

To explicitly define acceptable and unacceptable professional conduct for IS auditors.✔️
To offer procedural guidance to newly qualified IS auditors entering the field.
To outline how auditors should handle client irregularities and suspected illegal activities.
To advise auditors on when it is permissible to deviate from published audit standards.

Correct Answer Logic:

ISACA's Code of Professional Ethics is designed to hold IS auditors to the highest standards of integrity and honest representation. It establishes clear expectations for professional behaviour and makes explicit what is and is not acceptable conduct. The ethics statement reinforces the fiduciary duty of the auditor to the client and the profession, making it unacceptable to misrepresent findings, violate confidentiality, or act in self-interest at the client's expense.

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Urdu QUESTION #5036

Question 1026

چاہِ زناخداں کا کیا مطلب ہے؟

ٹھوڑی کا گڑھا✔️
زخم لگنا
رسوائی ہونا
ان میں سے کوئی نہیں

Correct Answer Logic:

چاہِ زناخداں کا مطلب ٹھوڑی میں پڑنے والا گڑھا ہے جسے اردو ادب میں حسن کی علامت سمجھا جاتا ہے۔

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3587

Question 1027

The 'Taxonomical' classification of drugs is based on:

Natural relationship and phylogeny✔️
Alphabetical order
Healing properties
Physical appearance

Correct Answer Logic:

Taxonomical classification follows the biological hierarchy (Family, Genus, Species).

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Math Physics Chemistry Biology QUESTION #4240

Question 1028

Nodes of Ranvier along the length of myelinated fibers allow:

More diffusion of neurotransmitters
saltatory conduction of nerve impulse✔️
Formation of new synaptic connections
Synthesis of new neurons

Correct Answer Logic:

Nodes of Ranvier enable saltatory conduction.

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Chemistry QUESTION #4377

Question 1029

Which of the following situations most clearly demonstrates a key characteristic of a redox reaction?

Water boiling to steam
Hydrogen gas reacting with chlorine to form hydrogen chloride gas✔️
Sodium chloride dissolving in water
Ethanol evaporating at room temperature

Correct Answer Logic:

$H_2 + Cl_2 \rightarrow 2HCl$: Hydrogen is oxidized ($0 \rightarrow +1$) and chlorine is reduced ($0 \rightarrow -1$). This is a clear redox reaction involving electron transfer.

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Dairy Food Science and Technology QUESTION #5874

Question 1030

The Methylene Blue Reduction Test (MBRT) estimates milk quality by measuring:

Somatic cell count
Fat content
Bacterial metabolic activity that decolorizes methylene blue✔️
Antibiotic residues

Correct Answer Logic:

MBRT is a reductase test. Bacterial enzymes reduce methylene blue (blue) to leucomethylene blue (colorless). Faster decolorization indicates higher bacterial load and poorer milk quality.

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Chemistry QUESTION #1416

Question 1031

In chemometrics, multivariate calibration involves:

Using multiple independent variables to predict dependent variables✔️
Using regression only on X-data
Performing correlation without regression
None of these

Correct Answer Logic:

Multivariate calibration in chemometrics uses multiple independent variables (e.g., spectral data at multiple wavelengths) simultaneously to build predictive models for dependent variables (e.g., concentration). Techniques like Principal Component Regression (PCR) and Partial Least Squares (PLS) are commonly used. It goes beyond simple univariate regression.

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Boilers Mechanical Engineering QUESTION #2419

Question 1032

The Stefan-Boltzmann Law gives the maximum heat flux emitted by a blackbody surface at absolute temperature $T_s$ as:

$q''_{SB} = \sigma T_s^2$
$q''_{SB} = \varepsilon\sigma T_s^4$
$q''_{SB} = \sigma T_s^4$ (blackbody, $\varepsilon=1$)✔️
$q''_{SB} = h_r(T_s - T_{surr})$

Correct Answer Logic:

Stefan-Boltzmann Law for a perfect blackbody ($\varepsilon=1$): $q''_{SB}=\sigma T_s^4$ where $\sigma=5.67\times10^{-8}$ W/m²·K⁴.

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Civil Engineering QUESTION #6596

Question 1033

According to ACI 318-95 load combination recommendations, the load factor applied to wind load $W$ is:

1.4
1.7
1.3✔️
0.9

Correct Answer Logic:

Per ACI 318-95, the load combination including wind is $U = 0.75(1.4D + 1.7L + 1.7W)$, giving an effective wind load factor of $0.75 \times 1.7 = 1.275 \approx 1.3$. Also used as $1.3W$ directly in some combinations.

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Federal Rules of Evidence (US) QUESTION #3786

Question 1034

A witness testifies in a robbery trial. To refresh her memory, the prosecutor shows her a diary entry she wrote the day after the robbery. She reads it silently, says 'now I remember,' and continues her testimony. The defense demands to see the diary and introduce it into evidence. Is the defense entitled to this?

No, the diary is a private document.
Yes, under Rule 612, the adverse party is entitled to have the writing produced, to cross-examine the witness about it, and to introduce any related portion into evidence.✔️
Only if the witness actually read the diary aloud to the jury.
No, because the diary is hearsay.

Correct Answer Logic:

Rule 612 gives the adverse party the right to inspect any writing used to refresh a witness's memory, to cross-examine with it, and to introduce it into evidence to impeach the witness.

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Education QUESTION #6771

Question 1035

Carey (1988) identified six elements for developing a Table of Specification. Which combination is MOST essential to ensure both content representativeness AND cognitive depth?

Total number of items and test format
Balance among goals selected for the exam AND balance among levels of learning (higher and lower order)✔️
Enabling skills and number of items per goal
Test format and difficulty level

Correct Answer Logic:

Content representativeness is ensured by balancing the weighting across all instructional goals (objectives). Cognitive depth is ensured by explicitly including items at both lower-order (knowledge, comprehension) and higher-order (application, analysis, synthesis) levels of Bloom's Taxonomy. These two elements working together prevent a test from oversampling easy recall items at the expense of complex thinking.

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CISA QUESTION #1793

Question 1036

During an application review, an IS auditor encounters activity that may constitute an illegal act. What is the most appropriate course of action?

Disregard the finding as it falls outside the current review scope
Conduct an independent investigation to assist law enforcement
Immediately inform the auditee of the suspected activity
Obtain qualified legal counsel before proceeding further with the audit✔️

Correct Answer Logic:

Detecting illegal activity is outside the auditor's formal mandate; however, the auditor must not ignore the finding. The appropriate response is to seek competent legal advice to understand liability, disclosure obligations, and reporting requirements before taking any further action or communicating the finding to others.

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CISA QUESTION #6844

Question 1037

An auditor reviews IT budget allocation and finds 80% of spending is on operations and maintenance of legacy systems while only 20% is allocated to strategic initiatives and innovation. What does this MOST likely indicate?

Efficient operations
Technical debt and lack of strategic IT investment limiting business enablement✔️
Cost-effective management
Appropriate risk management

Correct Answer Logic:

Excessive spending on legacy system maintenance indicates technical debt that consumes resources needed for strategic initiatives. This pattern shows IT is in reactive mode maintaining old systems rather than enabling business innovation. The organization is likely falling behind competitors who invest more strategically in IT.

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Biology Zoology Botany QUESTION #1359

Question 1038

Plants that grow under direct sunlight are known as:

Heliophytes✔️
Sciophytes
Psamophytes
Dicots

Correct Answer Logic:

Heliophytes (sun plants) are plants adapted to grow in full, direct sunlight. They have structural adaptations such as smaller, thicker leaves with more palisade mesophyll layers and higher chlorophyll content to optimise photosynthesis in high-light conditions. Sciophytes are shade-tolerant plants; psamophytes grow in sandy soil environments.

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