Indian Coast Guard Navik GD Mock Test - 3 - Indian Coast Guard Navik GD/DB MCQ

Given, 3, 8, 13, 18, … is the AP.
a = 3
d = a(2) – a(1) = 8 − 3 = 5
Let a(n) term be 78.
a(n) = a + (n − 1) x d
78 = 3 + (n − 1) x 5
75 = (n − 1) x 5
(n − 1) = 15
n = 16

First five prime numbers are 2, 3, 5, 7, 11. Sum - 28

Total digits = 5 → 0, 2, 4, 6, 8
Possible numbers for hundreds place = 4 = 2, 4, 6 and 8
Possible numbers for tens place = 4
Possible numbers for ones place = 3
So the answer = 4 × 4 × 3 = 48

According to given question,
Since 900 books are bonded in 10 days by 18 binders.
∴ 1 books are bonded in 10 days by 18 / 900 binders.
∴ 1 books are bonded in 1 days by 18 x 10 / 900 binders.
∴ 660 books are bonded in 1 days by 18 x 10 x 660 / 900 binders.
∴ 660 books are bonded in 12 days by 18 x 10 x 660 / 12 x 900 binders.
∴ 660 books are bonded in 12 days by 18 x 10 x 55 / 900 binders.
∴ 660 books are bonded in 12 days by 18 x 55 / 90 binders.
∴ 660 books are bonded in 12 days by 55 / 5 binders.
∴ 660 books are bonded in 12 days by 11 binders.

Since A, B and C are the angles of a Δ,
∴ A + B + C = 180° .................... (1)
According to question,
A – B = 15° ;
⇒ A = B + 15°...................(2)
B – C = 30°;
⇒ B = C + 30°;....................(3)
Put the value of B from equation (2) in Equation (1), we will get
∴ A = B + 15°
A = C + 30° + 15°
A = C + 45° ......................(4)
From a equation,
∴ A + B + C = 180°
⇒ (C + 45°) + (C + 30°) + C = 180°
⇒ 3C + 45° + 30° = 180°
⇒ 3C = 180° – 75° = 105°
⇒ C = 35° ...........................(5)
From equation (4)
A = C + 45°
Put the value of C from equation (5) , we will get
∴ ∠A = 35° + 45° = 80°.

Hence, Option D is correct.

Using Rule 1,

If the slower pipe fills the tank in x hours, then

Required time = 30 - 10 = 20 hours

Distance covered by B in 6 sec. =(1000/300*6)m = 20m
∴  A beats B by 20 m.
For a dead heat race, A must give B a start of 20m.

Investment of Sumit = Rs.45000
Duration of Sumit = 1 year
Investment of Ravi = Rs.81000
Duration of Sumit = 1 year
Investment of Puneet = Rs.90000
Duration of Puneet = 1 year
Ratio of profits = Ratio of investments...

Given, Total profit = Rs.4800 30% of total profit donated to charity
Amount donated to charity = 30% of Rs.4800 = Rs.1440...
Remaining amount = Rs.4800-1440 = Rs.3360
Let the profits of Sumit, Ravi and Puneet be Rs.5x, Rs.9x and Rs.10x respectively....
Total profit = Rs.5x+9x+10x = Rs.24x...
Given, 24x = 3360 => x = 140 Therefore, Profit of Sumit = 5x = 5*140 = Rs.700.

Hence, Option C is correct.

There should be 16 in place of 12.
Hence, Option A is correct. 

Tan(60) = h₁/AB
=> h₁ = √3AB
Tan(45) = h₁/BC
=> h₂ = BC
h₁/ h₂ = √3/1
=> h₁ : h₂ = √3 : 1

Total cards = 52
Numbered cards = 2 to 10
Total numbered cards = 4 × 9 = 36

According to question,
40 cows eat 40 bags of husk in 40 days.
1 cows eat 40 bags of husk in 40 x 40 days.
1 cows eat 1 bags of husk in 40 x 40 / 40 days.
1 cows eat 1 bags of husk in 40 days.

In ΔACE
∠A + ∠C + ∠E = 180°
Similarly in ΔDFB
∠D + ∠F + ∠B = 180°
∴ (∠A + ∠C + ∠E) + (∠D + ∠F + ∠B) = 360°
∠A + ∠B + ∠C + ∠D + ∠E + ∠F = 360°

Let the breadth of the rectangle = B
Length of the rectangle = L
L × B = 2 B × 2 B
L = 4B
L : B = 4 : 1
Hence, Option C is correct.

10 rupee coins : 5 rupee coins = 480 : 230 = 3 : 2

Hence, Option C is correct.

Midpoint formula:

The correct answer is C) Hydrogen. When metals react with acids, the primary gas produced is hydrogen. This reaction typically involves the displacement of hydrogen from the acid by the metal. The metal ions from the metal compound combine with the anions from the acid to form a salt, while hydrogen gas is released.

For example, when metals like zinc, magnesium, or aluminum react with hydrochloric acid (HCl), the reaction proceeds as follows:

Zn + 2HCl → ZnCl₂ + H₂

Mg + 2HCl → MgCl₂ + H₂

2Al + 6HCl → 2AlCl₃ + 3H₂

As seen in the reactions above, hydrogen gas (H₂) is released as a product when metals react with acids.

PET is a thermoplastic polymer commonly used in the production of plastic bottles and food containers due to its strength and clarity.

Lysosomes are small vesicles containing hydrolytic enzymes and surrounded by a single membrane of up to 100nm thickness. They are formed by the Golgi apparatus and contain some 60 different types of acid hydrolyses for the digestion of various materials.

The tendency of an offspring to resemble its parent is known as:
1. Heredity:
- Heredity refers to the passing on of traits or characteristics from parents to their offspring.
- It is the process by which genetic information is transmitted from one generation to the next.
2. Variation:
- Variation refers to the differences or diversity that can be observed among individuals within a population.
- It is caused by genetic and environmental factors and leads to differences in traits between individuals.
3. Resemblance:
- Resemblance refers to the similarity or likeness between individuals, particularly in terms of physical appearance or traits.
- Offspring often share certain characteristics with their parents, resulting in a resemblance between them.
4. Inheritance:
- Inheritance refers to the passing on of genetic information or traits from parent organisms to their offspring.
- It involves the transfer of genetic material through genes, which carry the instructions for specific traits.
Conclusion:
The correct answer to the question is B: Heredity. Heredity is the process responsible for the tendency of an offspring to resemble its parent.

Intersex refers to individuals who possess both male and female reproductive structures, or who have chromosomal, gonadal, or anatomical variations that do not fit typical definitions of male or female. It is a term used to describe a range of variations in sex characteristics.

Comparative embryology is the study of the development and changes in organisms before they are born or hatched. It examines the similarities and differences in the early stages of development among different species.

The plant that has respiratory roots is (a) Mangrove. Mangroves are a group of trees and shrubs that grow in coastal areas, particularly in tropical and subtropical regions. They have specialized aerial roots called pneumatophores or respiratory roots. These roots emerge from the soil and protrude above the water surface, allowing the mangroves to obtain oxygen for respiration in waterlogged or anaerobic soil conditions. The respiratory roots of mangroves facilitate gas exchange, enabling the plants to survive in the unique and challenging coastal environments they inhabit.

The study of tissues is called histology. Histology involves the examination and analysis of tissues at a microscopic level to understand their structure, organization, and function. It encompasses the study of various types of tissues found in plants, animals, and humans.

Histologists use specialized techniques to prepare tissue samples for microscopic examination. This often includes fixation, sectioning, staining, and mounting of tissue specimens on slides. Microscopes are then used to observe and analyze the cellular and architectural characteristics of different tissues.

Cytology, on the other hand, is the study of cells, their structure, and functions. Embryology focuses on the development and formation of embryos and their organs. Pathology is the study of diseases, their causes, mechanisms, and effects on tissues and organs.

The dark reaction, also known as the Calvin cycle or the light-independent reaction, is called "dark" because it does not directly require light energy to occur. Unlike the light-dependent reactions of photosynthesis, which require light energy to generate ATP and NADPH, the dark reaction can occur in the absence of light. It takes place in the stroma of the chloroplasts and utilizes the ATP and NADPH produced during the light-dependent reactions to convert carbon dioxide (CO2) into glucose and other organic compounds. Hence, it is called the dark reaction because it can occur in the dark or in the absence of light.