FREE FE Knowledge Questions and Answers

Question 1

If the material was under 0.09 strain and the following information is known, find the modulus of elasticity of the composite material:

Accepted Answer

350,000 psi

Answer

425,000 psi

Answer

500,000 psi

Answer

275,000 psi

Question 2

The hydraulic conductivity of a soil is tested using a sample, which is a cylindrical container 25 cm in length and 10 cm in diameter on a circular cross section.

What is the soil's hydraulic conductivity when the sample is exposed to a 50 cm head and an 8 cm3/min flow rate is measured through it?

Accepted Answer

0.05 cm/min

Answer

0.10 cm/min

Answer

2 cm/min

Answer

0.025 cm/min

Question 3

A compressive load is supported by a short post made of an aluminum hollow circular tube with inner and outer diameters of d1 = 3.6 in and d2 = 5.0 in, respectively.

What is the strain on the 40-inch post whose length has been shortened by 0.044 inches as a result of the load?

Accepted Answer

0.0011

Answer

-0.035

Answer

-0.0011

Answer

0.035

Question 4

A trucker makes an attempt to stop his vehicle. For the first 20 meters, the velocity decreases consistently from 12 m/s to 8 m/s. Assuming the truck keeps descending at the same pace, how far did it go in total before coming to a stop?

Accepted Answer

20m

Answer

25m

Answer

30m

Answer

18 m

Question 5

A cylindrical container with a length of thirty centimeters and a circular cross section with a diameter of fifteen centimeters is used as the sample for the test to measure the hydraulic conductivity of a soil.

What is the soil's hydraulic conductivity when a 60 cm head is applied to the sample and a 12 cm3/min flow rate is recorded through it?

Accepted Answer

0.05 cm/min

Answer

0.08 cm/min

Answer

1.25 cm/min

Answer

0.02 cm/min

Question 6

A compressive load is supported by a short post made of an aluminum hollow circular tube with inner and outer diameters of d1 = 5.6 in and d2 = 7.0 in, respectively.

What is the strain on the post? It is sixty inches long, and the load has caused it to shorten by 0.024 inches.

Accepted Answer

0.0004

Answer

-0.0004

Answer

-0.045

Answer

0.045

Question 7

What is the likelihood of rolling two dice and getting a sum of five?

Accepted Answer

1/9

Answer

2/9

Answer

4/42

Answer

5/36

Question 8

It is what draws similar molecules to one another.

Accepted Answer

Cohesion

Answer

Reduction

Answer

Conduction

Answer

Adhesion

Question 9

Which kind of bonding is dominated by electrostatic attraction?

Accepted Answer

Ionic bonding

Answer

Chemical bonding

Answer

Unipolar bonding

Answer

Covalent bonding

Question 10

What is the term for elements in the periodic table numbered 58 through 71?

Accepted Answer

Lanthanons

Answer

Halogens

Answer

Metals

Answer

Magnets