Reading Mode - Questions

Symmetric $2 \times 2$ matrices have form $\begin{pmatrix} a & b \ b & c \end{pmatrix}$. Basis: $\begin{pmatrix} 1 & 0 \ 0 & 0 \end{pmatrix}$, $\begin{pmatrix} 0 & 1 \ 1 & 0 \end{pmatrix}$, $\begin{pmatrix} 0 & 0 \ 0 & 1 \end{pmatrix}$. Dimension is 3.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3354

Question 4

'Quaternary Ammonium Compounds' (Quats) are a type of:

Antibiotic
Disinfectant/Surfactant✔️
Sugar
Gas

Correct Answer Logic:

They are widely used in hospitals for surface disinfection.

Uploaded by: Fani Warraich

Islamic Studies QUESTION #644

Question 5

During the Second Pledge of al-'Aqaba, ________ men and two women offered an oath of allegiance to the Prophet Muhammad (ﷺ).

73✔️
63
83
None of these

Correct Answer Logic:

73 men and 2 women from Madina took the second pledge at Aqaba.

Uploaded by: Fani Warraich

Planning QUESTION #4960

Question 6

In demography, what does 'Dependency Ratio' measure?

Ratio of workers to unemployed
Ratio of non-working to working population✔️
Ratio of urban to rural population
Ratio of births to deaths

Correct Answer Logic:

Dependency Ratio is calculated as $\frac{\text{Population aged 0-14 + Population aged 65+}}{\text{Population aged 15-64}} \times 100$, indicating the burden on the working-age population.

Uploaded by: Fani Warraich

General Knowledge QUESTION #8667

Question 7

Which acid is commonly used in lead-acid car batteries?

NaCl (Sodium chloride)
HCl (Hydrochloric acid)
HNO3 (Nitric acid)
H2SO4 (Sulfuric acid)✔️

Correct Answer Logic:

Sulfuric acid (H2SO4) is used in batteries.

Uploaded by: Fani Warraich

General Knowledge QUESTION #4652

Question 8

Opposition to new anti-terrorist legislation could defend themselves against the author's strategy by arguing:

India's border partners have passed similar legislation✔️
Past success does not guarantee future success of the present bill
The new law is not as strong as the earlier bill
Defence personnel are not always right

Correct Answer Logic:

2

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #4055

Question 9

'Boiler Horsepower' (BHP) is equivalent to the evaporation of:

$34.5~lb$ of water per hour from and at $212^\circ\text{F}$✔️
$1~kg$ of water
$1000~lb$ of water
$1~hp$ motor

Correct Answer Logic:

This is an old unit of measure still used in North America for smaller boilers.

Uploaded by: Fani Warraich

Physics and Math QUESTION #78

Question 10

Asim is now three times as old as Irfan. After 10 years, Asim will be twice as old as Irfan. Asim’s at this time is:

40
30✔️
20
10

Correct Answer Logic:

Asim’s current age = 30 years.

Uploaded by: Fani Warraich

Mathematics QUESTION #4091

Question 11

Consider $T:\mathbb{R}^3\to\mathbb{R}^2$ defined by $T(x,y,z)=(|x|,y+z)$. To show $T$ is NOT linear, the simplest counterexample uses scalar multiplication with $c=-1$ and vector $(1,0,0)$:

Both $T(c\mathbf{v})$ and $cT(\mathbf{v})$ equal $(1,0)$
Both equal $(-1,0)$
They differ: $T(-1,0,0)=(1,0)$ but $-T(1,0,0)=(-1,0)$✔️
They differ: $T(-1,0,0)=(0,-1)$ but $-T(1,0,0)=(0,1)$

Correct Answer Logic:

For linearity, $T(c\mathbf{v})=cT(\mathbf{v})$. With $\mathbf{v}=(1,0,0)$ and $c=-1$: $T(-1,0,0)=(|-1|,0)=(1,0)$, but $-1\cdot T(1,0,0)=-1\cdot(1,0)=(-1,0)$. Since $(1,0)\neq(-1,0)$, $T$ is NOT linear — homogeneity fails.

Uploaded by: Fani Warraich

Logical Reasoning QUESTION #3940

Question 12

Select the pair with a similar relationship: BREAD : FLOUR

Candy : Sugar✔️
Tire : Rubber
Meat : Animal
Wine : Grapes

Correct Answer Logic:

3

Uploaded by: Fani Warraich

General Knowledge QUESTION #8739

Question 13

The Prime Meridian (0° longitude) passes through which country?

Britain✔️
America
Switzerland
Finland

Correct Answer Logic:

The Prime Meridian runs through Greenwich, London, UK.

Uploaded by: Fani Warraich

General Knowledge QUESTION #8274

Question 14

Which component of a computer system is often referred to as its 'brain'?

ALU (Arithmetic Logic Unit)
Memory
CPU (Central Processing Unit)✔️
Control unit

Correct Answer Logic:

The CPU processes instructions and is considered the brain of the computer.

Uploaded by: Fani Warraich

Chemistry QUESTION #5583

Question 15

Phenol reacts with KBr/KBrO₃ solution (which generates $Br_2$ in situ). The major product obtained is:

3-Bromophenol
4-Bromophenol
2,4,6-Tribromophenol✔️
2-Bromophenol

Correct Answer Logic:

The –OH group in phenol is a powerful ortho/para director and activates all three positions (2, 4, and 6). With excess $Br_2$ in water (generated from $KBr + KBrO_3$), all three activated positions undergo electrophilic aromatic substitution to give 2,4,6-tribromophenol as the major product (white precipitate).

Uploaded by: Fani Warraich

English QUESTION #4449

Question 16

His application for a visa was turned ____ by the consulate.

out
over
down✔️
aside

Correct Answer Logic:

To 'turn down' means to reject or refuse an application or offer.

Uploaded by: Fani Warraich

Physics QUESTION #368

Question 17

What is emitted by a hot metal filament in a cathode ray tube?

X-ray
Proton
Electron✔️
Photon

Correct Answer Logic:

Hot metal filaments emit electrons through thermionic emission

Uploaded by: Fani Warraich

Academic/Professional (Social Sciences) QUESTION #6503

Question 18

What is 'Cultural Lag'?

The loss of culture over time
The gap between material and non-material culture during change✔️
A culture that refuses to change
The process of culture spreading from one society to another

Correct Answer Logic:

William Ogburn coined this to describe how technology often moves faster than social norms/values.

Uploaded by: Fani Warraich

Maths QUESTION #4547

Question 19

What is $25\%$ as a decimal?

$2.5$
$0.25$✔️
$0.025$
$25.0$

Correct Answer Logic:

To convert percent to decimal, divide by $100$. $25\% = \frac{25}{100} = 0.25$

Uploaded by: Fani Warraich

General Knowledge QUESTION #2631

Question 20

The NORTHBRIDGE chipset is responsible for managing which of the following?

Hard drives and USB devices (input/output controllers)
High-speed components such as RAM and video cards✔️
The power supply and fan speed control
External peripheral connections like keyboards and mice

Correct Answer Logic:

The Northbridge interconnects high-speed components like RAM and video cards with the CPU. The Southbridge, by contrast, maintains the IO (input/output) controllers like hard drives and USB devices. Together they form the system chipset that manages component communication.

Uploaded by: Fani Warraich

More Options

Suggest a Question