Reading Mode - Questions

Superposition applies to current (not power): $I_{total} = 1 + (-0.5) = 0.5\,\text{A}$. $P = I^2 R = (0.5)^2\times5 = 1.25\,\text{W}$. Directly superimposing powers would give $1^2\times5 + 0.25\times5 = 6.25\,\text{W}$ — a common but incorrect approach.

Uploaded by: Fani Warraich

Mathematics QUESTION #6982

Question 1485

Two cards are drawn one after another with replacement from a well-shuffled standard deck of 52 cards. Let $X$ be the number of aces obtained. Find $P(X=1)+P(X=2)$.

$\dfrac{49}{169}$
$\dfrac{52}{169}$
$\dfrac{24}{169}$
$\dfrac{25}{169}$✔️

Correct Answer Logic:

$p=P(\text{ace})=\dfrac{4}{52}=\dfrac{1}{13}$, $q=\dfrac{12}{13}$. Binomial with $n=2$.

$P(X=1)=\binom{2}{1}\cdot\dfrac{1}{13}\cdot\dfrac{12}{13}=\dfrac{24}{169}$

$P(X=2)=\binom{2}{2}\cdot\left(\dfrac{1}{13}\right)^2=\dfrac{1}{169}$

$P(X=1)+P(X=2)=\dfrac{24}{169}+\dfrac{1}{169}=\dfrac{25}{169}$

Uploaded by: Fani Warraich

General Abilities QUESTION #4522

Question 1486

Simplify: $4^2 \times 2^2$

$8^4$
$(8 \times 2)^2$
$8^2$✔️
$2^8$

Correct Answer Logic:

$4^2 \times 2^2 = (4 \times 2)^2 = 8^2 = 64$. Using $(bc)^m = b^m c^m$

Uploaded by: Fani Warraich

Education QUESTION #6904

Question 1487

Which of the following BEST characterizes the difference between 'primary prevention,' 'secondary prevention,' and 'tertiary prevention' in the context of school violence control?

Primary targets all students; secondary targets teachers; tertiary targets parents
Primary prevents problems from emerging through curriculum design; secondary provides tailored interventions for at-risk students; tertiary delivers intensive wraparound services for the most severely at-risk✔️
Primary uses counseling; secondary uses suspension; tertiary uses expulsion
Primary is annual; secondary is termly; tertiary is weekly

Correct Answer Logic:

These three levels of violence prevention form a tiered intervention model. Primary prevention is universal and proactive — embedding anti-violence principles in the curriculum for all students. Secondary prevention is selective — targeting students showing early at-risk indicators. Tertiary prevention is intensive — providing comprehensive, multi-agency support for students with severe behavioral and social challenges.

Uploaded by: Fani Warraich

Chemistry QUESTION #7375

Question 1488

Two electrons occupying the same orbital can be distinguished from each other by which quantum number?

Principal quantum number
Magnetic quantum number
Azimuthal quantum number
Spin quantum number✔️

Correct Answer Logic:

Pauli's Exclusion Principle: No two electrons in an atom can have all four quantum numbers identical. Two electrons in the same orbital share the same $n$, $\ell$, and $m$ values. The only difference is their spin quantum number $m_s$ — one has $+\frac{1}{2}$ (spin up ↑) and the other $-\frac{1}{2}$ (spin down ↓).

Uploaded by: Fani Warraich

General Knowledge QUESTION #8823

Question 1489

Bill Gates is the founder of which technology company?

AMD
Dell
HP
Microsoft✔️

Correct Answer Logic:

Bill Gates co-founded Microsoft.

Uploaded by: Fani Warraich

Reading and Writing (Module-1) QUESTION #5395

Question 1490

It is by no means _______ to recognize the influence of Dutch painter Hieronymus Bosch on Ali Banisadr's paintings; indeed, Banisadr himself cites Bosch as an inspiration. However, some scholars have suggested that the ancient Mesopotamian poem Epic of Gilgamesh may have had a far greater impact on Banisadr's work. Which choice completes the text with the most logical and precise word or phrase?

substantial
satisfying
unimportant✔️
appropriate

Correct Answer Logic:

'Unimportant' fits because 'by no means' contradicts what follows—Banisadr himself acknowledges Bosch's influence, making it significant, not unimportant.

Uploaded by: Fani Warraich

HR and Management QUESTION #6474

Question 1491

In the context of 'getting results through others,' HRM helps managers:

Avoid doing any work themselves
Direct employee performance toward organizational objectives✔️
Transfer all responsibility to subordinates
Minimize interaction with employees

Correct Answer Logic:

HRM techniques help managers direct employee performance in desirable directions to achieve organizational objectives. Managers get things done through the efforts of others, which requires effective human resource management - not avoiding work, but enabling and directing others' work.

Uploaded by: Fani Warraich

English QUESTION #2710

Question 1492

What does the phrasal verb 'Call off' mean?

To cancel✔️
To shout
To visit
To postpone

Correct Answer Logic:

To 'call off' means to cancel a planned event or activity.

Uploaded by: Fani Warraich

Nursing QUESTION #9160

Question 1493

In nursing management, Management by Objectives (MBO) was developed by:

Frederick Taylor
Peter Drucker✔️
Abraham Maslow
Douglas McGregor

Correct Answer Logic:

Management by Objectives (MBO) was introduced by Peter Drucker in his 1954 book The Practice of Management. MBO is a process where:

Managers and employees jointly set specific, measurable objectives
Performance is evaluated against these pre-set objectives
Feedback and appraisal are systematic

In nursing management, MBO helps Head Nurses set clear performance targets for nursing staff, improving accountability and service quality. Other options: Frederick Taylor — Scientific Management; Maslow — Hierarchy of Needs; McGregor — Theory X and Y.

Uploaded by: Fani Warraich

Civil Engineering QUESTION #6641

Question 1494

Which of the following increases the 'Ductility' of a reinforced concrete section?

Increasing the concrete compressive strength
Increasing the amount of tension reinforcement beyond the balanced limit
Adding compression reinforcement✔️
Reducing the beam depth

Correct Answer Logic:

Compression steel reduces the depth of the neutral axis, which increases the strain in the tension steel at failure, thereby increasing ductility.

Uploaded by: Fani Warraich

Electrical Engineering QUESTION #2137

Question 1495

In a balanced three-phase star-connected system, what is the phase relationship between the line voltage $V_L$ and its corresponding phase voltage $V_{ph}$?

$V_L$ leads $V_{ph}$ by $30^\circ$✔️
$V_L$ lags $V_{ph}$ by $30^\circ$
$V_L$ and $V_{ph}$ are in phase
$V_L$ leads $V_{ph}$ by $120^\circ$

Correct Answer Logic:

In a star (Wye) connection, the line voltage is $\sqrt{3}$ times the phase voltage and leads the phase voltage by $30^\circ$.

Uploaded by: Fani Warraich

Math Physics Chemistry Biology QUESTION #7747

Question 1496

Which statement is true for an X-linked dominant trait?

All daughters of affected father are affected✔️
Half of daughters of affected father are affected
No son of affected mother is affected
No daughter of affected father is affected

Correct Answer Logic:

Affected father (XᴰY) passes Xᴰ to all daughters (who become affected) and Y to sons (unaffected). Affected mother (XᴰXᵈ) passes Xᴰ to half of sons and daughters.

Uploaded by: Fani Warraich

Psychology QUESTION #9818

Question 1497

Deficiency motivation relates to abundance motivation as:

Desire is to need✔️
Innate is to learned
Primary is to secondary
Need is to desire

Correct Answer Logic:

In Maslow's framework, deficiency motivation (D-motivation) drives behaviour from a desire or lack (unmet need), while being/abundance motivation emerges when basic needs are satisfied. The relationship parallels desire (drive) to need (goal).

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #6196

Question 1498

Calculate the Future Value ($FV$) of $\$2,000$ invested for $2$ years at $10\%$ compound interest.

$2,200
$2,400
$2,420✔️
$2,662

Correct Answer Logic:

$FV = 2000(1.10)^2 = 2000 \times 1.21 = 2420$ [cite: 50, 51].

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #6097

Question 1499

Which of the following statements about marginal costing are correct?

It assists in resource optimization when a limiting factor is present.
It ensures decisions are based on the full absorption cost.
It includes the apportionment of service department costs.
It typically results in a lower inventory valuation compared to absorption costing.

1 and 4 only✔️
1, 2 and 4
2 and 3
3 and 4 only

Correct Answer Logic:

Marginal costing focuses on variable costs (contribution), making it ideal for limiting factor analysis (1). Because it excludes fixed overheads from inventory, valuation is lower than absorption (4). Statements 2 and 3 refer to absorption costing.

Uploaded by: Fani Warraich

Psychology QUESTION #9738

Question 1500

Leon Festinger's theory of cognitive dissonance suggests that people experience psychological discomfort when they hold:

Two consistent beliefs simultaneously
Inconsistent cognitions or beliefs simultaneously✔️
Strong attitudes about a political issue
High levels of self-efficacy

Correct Answer Logic:

Cognitive dissonance (Festinger, 1957) refers to the mental discomfort felt when a person holds two or more contradictory beliefs, attitudes, or behaviors simultaneously. To reduce this discomfort, people typically change one of the conflicting cognitions, add new cognitions to justify the inconsistency, or minimize the importance of one belief. Classic example: a smoker who knows smoking is harmful must rationalize or reduce the dissonance somehow.

Uploaded by: Fani Warraich

More Options

Suggest a Question