CLASS SECTION/SCHEDULE (FRI-AM, FRI-PM, SAT-AM, SAT-PM, SUN-AM, SUN-PM, ONLINE)

1.

It is the stress at which failure occurs

A. Ultimate Stress

B. Yield Point

C. Rupture stress

D. None of the above

A

B

C

D

None

2.

A. Elongation = 0.014 in

B. Elongation = 0.2 in

C. Elongation = 0.88 ft

D. None of the above

A

B

C

D

None

3.

A

B

C

D

None

4.

A solid steel shaft in a rolling mill transmits 20 kW of power at 2 Hz (Hertz). Determine the smallest safe diameter of the shaft if the shear stress is not to exceed 40 MPa and the angle of twist θ is limited to 6° in a length of 3 m. Use G = 83 GPa.

A. d = 58.7 mm

B. d = 58.7 in

C. d = 68.5 mm

D. d = 68.5 m

A

B

C

D

None

5.

It is built into a rigid support at one end, with the other end being free. It is one of the type of beams.

A. Howe truss B. I-Beam C. H-Beam D. Cantilever beam

A

B

C

D

None

6.

The applied force is perpendicular to the resisting area

A. Strain B. Ultimate stress C. Normal Stress D. All the above

A

B

C

D

None

7.

A

B

C

D

None

8.

Shearing stress is also known as

A. Tangential Stress

B. Stress acting perpendicular to the area

C. All the above

D. None of the above

A

B

C

D

None

9.

A

B

C

D

None

10.

Calculate the minimum wall thickness for a cylindrical vessel that is to carry a gas at a pressure of 1400 psi. The diameter of the vessel is 2 ft, and the stress is limited to 12 ksi.

A. t = 1.4 in

B. t = 2.8 in

C. t = 2 in

D. None of the above

A

B

C

D

None

11.

What is the branch of engineering mechanics which refers to the study of stationary rigid body?

a. Statics

b. Kinetics

c. Kinematics

D. Dynamics

A

B

C

D

None

12.

What refers to a pair of equal, opposite and parallel forces?

a. Couple

b. Moment

c. Torque

D. All of the above

A

B

C

D

None

13.

What is a concurrent force system?

a. All forces act at the same point.

b. All forces have the same line of action.

c. All forces are parallel with one another.

D. All forces are in the same plane.

A

B

C

D

None

14.

When will a three-force member be considered in equilibrium?

a. When the sum of the two forces is equal to the third force.

b. When they are concurrent or parallel.

c. When they are coplanar.

d. All of the above

b. All forces have the same line of action.

c. All forces are parallel with one another.

D. All forces are in the same plane.

A

B

C

D

None

15.

A roller support has how many reactions?

a. None

b. 1

c. 2

D. 3

A

B

C

D

None

16.

A link or cable support has how many reactions?

a. None

b. 1

c. 2

d. 3

A

B

C

D

None

17.

The resultant force of a distributed load is always equal to:

a. twice the area under the loading curve

b. half the area under the loading curve

c. the area under the loading curve

d. one-fourth the area under the loading curve

A

B

C

D

None

18.

When a body has more supports than are necessary to maintain equilibrium, the body is said to be _____.

a. in static equilibrium

b. in dynamic equilibrium

c. statically determine

D. statically indeterminate

A

B

C

D

None

19.

When does an equation be considered “dimensionally homogeneous”?

a. When it is unitless

b. When the dimensions of the various terms on the left side of the equation is not the same as the dimensions of the various terms on the right side.

c. When the degree of the left side of the equation is the same as the right side.

D. When the dimensions of various terms on the left side of the equation is the same as the dimensions of the various terms on the right side.

A

B

C

D

None

20.

What assumption is used in the analysis of uniform flexible cable?

a. Cable is flexible.

b. Cable is inextensible.

c. The weight of the cable is very small when compared to the loads supported by the cable.

d. All of the above

A

B

C

D

None

21.

A truss consisting of coplanar members is called _____.

a. plane truss

b. space truss

c. ideal truss

D. rigid truss

A

B

C

D

None

22.

What method of determining the bar force of a truss if only few members are required?

a. Methods of joints

b. Method of section

c. Maxwell’s diagram

D. Method of superposition

A

B

C

D

None

23.

Which of the following statements about friction is FALSE?

a. The direction of frictional force on a surface is such as to oppose the tendency of one surface to slide relative to the other.

b. The total frictional force is dependent on the area of contact between the two surfaces.

c. The magnitude of the frictional force is equal to the force which tends to move the body till the limiting value is reached.

d. Friction force is always less than the force required to prevent motion

A

B

C

D

None

24.

In the analysis of friction, the angle between the normal force and the resultant force _____ the angle of friction.

a. may be greater than or less than

b. is greater than

c. is less than

d. is equal to

A

B

C

D

None

25.

Center of gravity for a two dimensional body is the point at which the entire _____ acts regardless of the orientation of the body.

a. mass

b. weight

c. mass or weight

D. volume

A

B

C

D

None

26.

Moment of inertia of an area about an axis is equal to the sum of moment of inertia about an axis passing through the centroid parallel to the given axis and ____.

a. area and square of the distance between two parallel axes

b. area and distance between two parallel axes

c. square of the area and distance between two parallel axes

d. square of the area and square of the distance between two parallel axes

A

B

C

D

None

27.

A

B

C

D

None

28.

What are the four basic forms of deformation of solid bodies?

a. Tension, compression, bending and twisting

b. Tension, compression, elongation and bending

c. Tension, compression, plastic and elastic

d. Tension, compression, elongation and torsion

A

B

C

D

None

29.

What refers to a slender member which prevents parts of a structure moving towards each other under compressive force?