Indian Coast Guard Navik GD Mock Test - 9 - Indian Coast Guard Navik GD/DB MCQ

Using Rule 2,
Part of tank filled in 1 hour when all three pipes are opened simultaneously

Hence, the tank will be filled in 12 hours.

Let CP = 100x
SP = 75x

Hence, Option D is correct.

Hence, Option C is correct.

Let AB be the tower.

Then, APB = 30º and AB = 100 m.

 AP= (AB x √3) m
= 100√3 m
= (100 x 1.73) m
= 173 m.

Let numerator be x, then denominator = 11 – x.

⇒ 528 – 96x = 143 – 24x + x²

⇒ x² + 72x – 385 = 0

⇒ x² + 77x – 5x – 385 = 0

⇒ x(x + 77) − 5(x + 77) = 0

⇒ (x - 5) (x + 77) = 0 ⇒ x = 5

Denominator = 11 - 5 = 6

Difference = 6 - 5 = 1

A total o f 6 can be obtained by either (1 + 2 + 3) or by (2 + 2 + 2).

200 meters
The train can cover 800 – 500 meters in 60 – 40 seconds.

Length of the train = 15 × 40 – 500 = 100 meters
Hence, Option A is correct.

Using Rule 1,
Part of the cistern filled by both pipes in 1 hour

The cistern will be filled in 6 hours.

A : B = 100 : 75
B : C = 100 : 96.

= 100 : 72.
∴ A beats C by (100 - 72) m = 28 m.

You have to remember here that the profit given is for 8 months, so we’ll find the one month equivalent investments for 8 months, not for 12 months.
So, Arun’s 1 month equivalent investment = 8000*6
Kamal’s 1 month equivalent investment = 4000*8
Vinay’s 1 month equivalent investment = 8000*8
Hence the ratio of investments = 8,000*6 : 4,000*8 : 8,000*8 = 3 : 2 : 4.
Therefore Kamal’s share in the profit = Rs. 4005 x 2/9 = Rs 890 (option ‘A)

Let CP = 100
MP = 180

So the answer = 100 – 94.50 = 5.50%
Hence, Option D is correct.

There should be 4 in place of 3.
Hence, Option D is correct. 

Let the distance between the towers be X 
From the right angled triangle CFD 
Tan(45) =  (90 - 45)/X   
=> x = 45 meters

Using BODMAS, we get 2.79 after simplifying

Total numbers on a dice = 6
Prime numbers on a dice = 3 (2, 3 and 5)

Given in the question,
M₁ = 7 spiders , D₁ = 7 days , W₁ = 7 webs
M₂ = 1 spider , D₂ = ? , W₂ = 1 web
We know that ,

⇒ D₂ = 7 x 1 = 7 days .
Hence , 1 spider will make 1 web in 7 days.

From the given question, by using Pythagoras theorem, we get,

We need to find 
⇒AB² + BC² + CD² + DE²  
By putting the value from the equation (1), we get,
⇒ AC² + CD² + DE²
⇒ By putting the value from the equation (2), we get,
⇒ AD2 + DE²
By putting the value from the equation (3), we get,
⇒ AE²
Hence, the correct answer is AE².

Calculations
We can choose 6 people from a Volleyball team.
The no. of ways of choosing  6 Players from among 12 players is = ¹²C₆   

∴ Option (2) is the correct answer.

Key Points

• The concept of days succeeding each other is based on a seven-day cycle in which each day follows the next in a fixed order.
• If today is Wednesday, tomorrow would be Thursday.
• Thus, the day after tomorrow would be Friday, a day not listed among the options.
• Therefore, given the context and the understanding of the sequence of days in a week, 'none of the above' is the correct answer.

Therefore, the correct answer is Option 4, 'None of the above'.

Cnidaria is the phylum that encompasses animals such as jellyfish, sea anemones, corals, and hydroids. These organisms have specialized cells called cnidocytes, which contain stinging structures used for prey capture and defense.

The lifetime of WBC in the lymph system is 13 to 20 days, and the existence of WBC is lost in the lymph system.

The healthy range for hemoglobin for women is typically considered to be option a) 11.6 to 15 grams per deciliter (g/dL). Hemoglobin levels can vary slightly depending on factors such as age, pregnancy, and individual health conditions. However, the range mentioned in option a is a commonly accepted range for healthy hemoglobin levels in adult women. It's important to note that specific reference ranges may vary slightly depending on the laboratory and healthcare provider.

The human skeleton is classified into four main types based on shape: long bones, short bones, flat bones, and irregular bones.

• A starch hydrolyzing enzyme called diastase converts complex carbs into simple ones.
• It promotes digestion in situations of chronic illness, stomach fullness, flatulence, and indigestion.
• Diastase is an enzyme that helps turn starch into maltose.
• Diastase enzymes are secreted in the oral cavity (mouth).

The patella, commonly known as the kneecap, is a sesamoid bone. Sesamoid bones develop within tendons, increasing their mechanical effect.

The number of ganglia does not affect the speed of conduction of a nerve impulse. Ganglia are collections of nerve cell bodies located outside the central nervous system. They are involved in coordinating and integrating signals within specific regions of the peripheral nervous system. However, they do not directly influence the speed of nerve impulse conduction.

On the other hand, the factors that do affect the speed of conduction of a nerve impulse are the presence of a myelin sheath, the diameter of the axon, and the temperature. The myelin sheath is a fatty substance that surrounds and insulates certain axons, allowing for faster transmission of electrical signals. A larger axon diameter also contributes to faster conduction as it provides less resistance to the flow of electrical signals. Additionally, temperature affects the speed of nerve impulse conduction, with higher temperatures generally resulting in faster transmission.

Therefore, among the given options, A) No. of ganglia does not affect the speed of conduction of a nerve impulse.

The stomach is a muscular J- shaped thickly walled bag-like structure that is one function that stores the food for several hours by a sphincter called the gastro-esophageal sphincter. 
It is divided into four portions that are Fundus, Cardiac, Body, and Pyloric regions. 
The pylorus is a narrow cone-shaped constriction placed at the end of the stomach and the starting of the small intestine. 
It consists of two sections antrum which combines the parts of the stomach and the pyloric canal and also joins the stomach and small intestine.
The pyloric region opens into the small intestine through the Pyloric sphincter.

Rennin, also known as chymosin, is the enzyme responsible for the digestion of milk protein. It is primarily found in the stomach of young mammals, including human infants, as well as in some animals. Rennin helps coagulate milk by breaking down the milk protein called casein into smaller peptides, facilitating the formation of a curd. This curd aids in the digestion and absorption of nutrients from milk in the digestive system.

Visual hallucinations are NOT a symptom of diabetes. Common symptoms of diabetes include increased thirst, frequent urination, fatigue, unexplained weight loss, and blurred vision.