Deck 17: Engineering Fundamentals

Question 1

What subject is primarily concerned with the equilibrium of bodies subjected to force systems?

A) Circuits
B) Statics
C) Thermodynamics
D) Economics

Answer 1

B

Question 2

If Force A = 30i + 40j lbs, how much of A is in the direction of axis B, where axis B = 100i + 20j?

A) 37.3 lbs
B) 45.1 lbs
C) 50.0 lbs
D) 76.0 lbs

Answer 2

A

Question 3

If three non-parallel forces hold a rigid body in equilibrium, they must

A) Be equal in magnitude
B) Be concurrent
C) Be non-concurrent
D) Form an equilateral triangle

Answer 3

B

Question 4

For the diagram shown, what is the magnitude of the reaction at support A?

A) 400 lbs
B) 500 lbs
C) 600 lbs
D) 750 lbs

Question 5

An object is moving with an initial velocity of 10 m/s. If it is decelerating at 2 m/s², how far does it travel before it stops?

A) 15 m
B) 25 m
C) 35 m
D) 45 m

Question 6

The velocity of a particle is v(t) = 4 + 8t m/s. Find the acceleration:

A) 4 m/s²
B) 8 m/s²
C) 9.81 m/s²
D) 32 m/s²

Question 7

A wheel accelerates from rest with $\alpha$ =4 rad/s². How many revolutions are experienced in 8 seconds?

A) 20
B) 30
C) 40
D) 50

Question 8

An automobile heats up while sitting in a parking lot on a sunny day. The process can be assumed to be

A) Isobaric
B) Isometric
C) Isentropic
D) Isothermal

Question 9

For the diagram shown, find I₁, in amperes.

A) 1 A
B) 2 A
C) 4 A
D) 6 A

Question 10

For the diagram shown, find the magnitude and sign of the power, in watts, absorbed by the circuit element in the box.

A) -36 W
B) -24 W
C) 24 W
D) 36 W

Question 11

If $10,000 is deposited in a savings account that pays 5% annual interest and all of the interest is left in the account, what is the account balance after 7 years?

A) $10,500
B) $10,700
C) $14,025
D) $14,071

Question 12

If an amount invested 10 years ago has doubled, what is the annual interest rate?

A) 1.00%
B) 1.07%
C) 7.18%
D) 10.7%