Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  Test: Kinetic Energy Correction & Momentum Correction Factors - Civil Engineering (CE) MCQ

Test: Kinetic Energy Correction & Momentum Correction Factors - Civil Engineering (CE) MCQ


Test Description

10 Questions MCQ Test - Test: Kinetic Energy Correction & Momentum Correction Factors

Test: Kinetic Energy Correction & Momentum Correction Factors for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Test: Kinetic Energy Correction & Momentum Correction Factors questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Kinetic Energy Correction & Momentum Correction Factors MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Kinetic Energy Correction & Momentum Correction Factors below.
Solutions of Test: Kinetic Energy Correction & Momentum Correction Factors questions in English are available as part of our course for Civil Engineering (CE) & Test: Kinetic Energy Correction & Momentum Correction Factors solutions in Hindi for Civil Engineering (CE) course. Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free. Attempt Test: Kinetic Energy Correction & Momentum Correction Factors | 10 questions in 30 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study for Civil Engineering (CE) Exam | Download free PDF with solutions
Test: Kinetic Energy Correction & Momentum Correction Factors - Question 1

What is the value of kinetic energy factor during a laminar flow?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 1

Kinetic energy factor for a fully developed laminar flow is around 2. Laminar flow occurs when a fluid flows in parallel layers. The flow must not have any sort of disruption between the layers of fluid. The fluid flows without a lateral mixing which makes it slide past one another.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 2

If you double the kinetic energy of an arrow, by what factor does its speed increase?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 2

Kinetic energy depends upon velocity and mass. The relation between K.E with mass and velocity is K.E = 0.5mv2. If we double the kinetic energy, the velocity has to be increased by a factor equal to the square root of two.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Kinetic Energy Correction & Momentum Correction Factors - Question 3

When a bullet hits a solid block and gets embedded into it. What is conserved?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 3

When the bullet is released from the gun, it moves through the individual air molecules. These molecules tend to vibrate which cannot be seen though our naked eye. The solid block acts as a “momentum sink”. It’s so big when compared to a tiny bullet that it can absorb all the momentum without visibly moving.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 4

When a charged body enters a uniform magnetic field. How will it’s kinetic energy change?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 4

 The kinetic energy remains a constant as the magnetic field always exerts a force perpendicular to the particle’s velocity. So, there is no change in the velocity of the fluid. Therefore, kinetic energy remains the same.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 5

How can you slow down a fast neutron?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 5

The fast neutrons are converted to thermal neutrons when they are passed through heavy water(D2O). The key factor for the neutrons to slow down are its atomic number. The velocity of the fast neutrons decreases with a few collisions.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 6

Which among the following is not an application of the Bernoulli?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 6

This is mainly because, Bernoulli’s equation is applied only when the fluid is irrotational. It means that the stream lines are not supposed to intersect each other. Also, the equation does not take viscosity into account. Thus, the flow rate decreases when you close the valve.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 7

What is the function of Reynolds number?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 7

Reynolds number is a dimensionless quantity. It is used to predict flow patterns in different types of fluid flow. At lower Reynold’s number, the flow is laminar. At higher Reynolds number, the flow is turbulent.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 8

If the kinetic energy is increased 4 times its initial value, then how does its momentum change?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 8

Kinetic energy depends upon velocity and mass. The relation is K.E = 0.5mv2. If we increase the kinetic energy by 4 times its initial value, the momentum has to be increased by 100% its initial value.

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 9

What is the relation between kinetic energy and momentum?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 9

Kinetic energy depends upon velocity and mass. The relation is K.E = 0.5mv2. The momentum(p) of the body=mv. Now, equating the two we get, K.E = 0.5mv2 = p2/2m. Therefore, the relation between kinetic energy and momentum is (p = mv).

Test: Kinetic Energy Correction & Momentum Correction Factors - Question 10

If a cricket ball moves with a velocity ‘v’ and collides with a tiny table tennis ball. After an elastic collision, at what velocity will the second ball move?

Detailed Solution for Test: Kinetic Energy Correction & Momentum Correction Factors - Question 10

Since the collision is elastic, the cricket ball having a higher mass than that of the tiny table tennis ball will hit and generate a higher velocity. After immediate impact, the table tennis ball will move exactly with twice the velocity of the cricket ball.

Information about Test: Kinetic Energy Correction & Momentum Correction Factors Page
In this test you can find the Exam questions for Test: Kinetic Energy Correction & Momentum Correction Factors solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Kinetic Energy Correction & Momentum Correction Factors, EduRev gives you an ample number of Online tests for practice

Top Courses for Civil Engineering (CE)

Download as PDF

Top Courses for Civil Engineering (CE)