RRB ALP & Technician CBT-1 | Mock Test Set : 1

According to the law of conservation of angular motion, an object will maintain its rotational motion unless an external torque is applied.

The statement establishes the necessity of oxygen for human survival.

The HCF of two co-prime number

During the electrolysis of water, oxidation occurs at the anode, leading to the formation of oxygen gas and protons. The balanced chemical equation for this reaction is 2H₂O(l) → O₂(g) + 4H⁺(aq) + 4e⁻.

$7÷(4-2)\times 5+3$
$=7÷2\times 5+3$
$=3.5\times 5+3$
$=17.5+3$
$=20.5$
Therefore, the correct answer is 20.5

According to Newton's First Law of Motion, an object will remain at rest or in uniform motion unless acted upon by a net external force. In this case, since the car is moving with a constant velocity, it means that the net force acting on the car is zero. This is because if there were a net force acting on the car, it would accelerate or decelerate, but since the velocity is constant, the net force must be zero.

The gravitational force is inversely proportional to the square of the distance, so if the distance is tripled, the force becomes one-ninth as strong.

The Kelvin temperature (K) is equal to the Celsius temperature (°C)+ 273.15.

The focal length of a concave lens is negative, indicating that the parallel rays diverge as if they originated from a virtual focus behind the lens.

The Partition of Bengal was announced by Lord Curzon, the Viceroy of India, in 1905, dividing the Bengal province into two parts, with the intent of weakening the nationalist movement in Bengal.

The days of the month repeat in cycles of 7. So, the 15th day will be $15\mathrm{mod}7=1$ day after Sunday, which is Monday.

Nalanda University, located in present-day Bihar, India, was a renowned center of learning in ancient India.

The order is U - R - (W) - V - Q - T - P.

The resistance ($R$) of a wire is given by R=ρ×(L/A)​, where $\rho$ is the resistivity, $L$ is the length, and $A$ is the area of cross-section. If the length ($L$) is doubled while keeping $A$ constant, the resistance becomes four times the original value.

In CH4 (methane), the bonding between carbon and hydrogen atoms involves the sharing of electrons, characteristic of covalent bonding.

Kelvin is a unit of temperature, not time. Time is measured in seconds, minutes, hours, etc.

Sarojini Naidu, also known as the Nightingale of India, was the first woman to become the President of the Indian National Congress in 1925.

Ethanol is commonly used as a disinfectant due to its ability to kill microorganisms such as bacteria and viruses.

Let the price of the first item be 3x.
(3x/4) = Rs. 24
x = Rs. 8
Price of the first item = 3 * Rs. 8 = Rs. 24.
So, the correct answer is Rs. 24.

The cuticle is a waxy layer on the surface of leaves that helps prevent excessive water loss from the plant through evaporation.

The Khajuraho temples, built between 950 and 1050 CE, are primarily dedicated to Hindu deities and reflect the architectural brilliance of the Chandela dynasty.

Mean of a binomial distribution is calculated as the product of the number of trials (n) and the probability of success (p)

Guru Nanak, born in 1469, was the founder of Sikhism. He was the first of the ten Sikh Gurus.

75% of the data is below 20 (The 75th percentile indicates that 75% of the data falls below that value)

Analogous structures are similar traits in unrelated species that have evolved independently due to inhabiting similar environments, such as the wings of insects and birds, which serve the same function but have different underlying structures.

The coding logic can be determined by counting the letters in each direction. EAST=4, SOUTH=5, WEST=4. Applying the same logic, NORTH has 5 letters, so its code is 5 + 5 = 10.

The "Mahabharata," one of the longest epic poems in the world, is traditionally attributed to the sage Vyasa.

Electrons have the least mass among the given options. They are approximately 1/1836 times lighter than either a proton or a neutron.

Let the age of the younger friend be x. The age of the older friend = 2x According to the given information, x + 2x = 30 Solving the equation, we get x = 10 So, the ages are 10 years and 20 years.