MCQ in Engineering Mechanics Part 7 | ECE Board Exam

This is the Multiple Choice Questions Part 7 of the Series in Engineering Mechanics as one of the General Engineering and Applied Sciences (GEAS) topics. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize yourself with each and every question compiled here taken from various sources including past Board Questions in General Engineering and Applied Sciences (GEAS) field, GEAS Books, Journals, and other GEAS References.

Continue Practice Exam Test Questions Part 7 of the Series

⇐ MCQ in Engineering Mechanics Part 6 | ECE Board Exam

Choose the letter of the best answer in each question.

301. It is defined as the science which considers the effects of forces on rigid bodies

a. Kinetics

b. Engineering Mechanics

c. Statics

d. Dynamics.

302. It considers the effects of the distribution of forces on rigid bodies which are and remain at rest.

a. Dynamics

b. kinetics

c. statics

d. kinematics

303. It is define as a definite amount of matter the parts which are fixed in position relative to each other.

a. kinematics

b. force system

c. rigid body

d. dynamics

304. It is the branch of mechanics which deals with the study of bodies in motion

a. statics

b. dynamics

c. kinetics

d. none of the above.

305. It is defined as a condition in which the resultant of a system of force is equal to zero.

a. resultant

b. axes

c. Equilibrium

d. displacement

306. The forces by which determine how the loads applied to a structure are distributed throughout the structure.

a. force system

b. analysis of structure

c. rigid body

d. none of the above

307. In _____ the members are subjected to bending action.

a. forces

b. trusses

c. frames

d. structure

308. In _____ the internal force in a bar is directed along the axis of bars.

a. frame

b. structure

c. forces

d. trusses

309. It may be defined as the contact resistance exerted by one body upon a second body when the second body moves or tends to move past the first body.

a. resistance

b. pressure

c. friction

d. motion

310. The term ______ is used when rotating to the center of gravity of a weightless figure such as a line, an area or a volumes.

a. centroid

b. axis

c. area

d. base

311. The moment of inertia is sometimes called the __________.

a. parallel axis

b. second moment of area

c. polar moment of inertia

d. none of the above

312. The term ________ is used to describe another mathematical expression appears and appears must frequently in column formulas.

a. radius of gyration

b. centroidal axis

c. moments of inertia

d. mohr’s circle

313. The moment of inertia of an area is defined by the equation?

a. I =Ak2

b. Ir+Iy

c. Sp2dA

d. SxydA

314. The pendulum clock was developed by ________

a. Robert Hooke

b. Hygens

c. Galileo

d. Aristotle

315. It is the geometry of motion.

a. static

b. kinematics

c. kinetic

d. dynamics

316. It is the branch of mechanics that relates the force acting on a body to its mass and acceleration.

a. Dynamics

b. statics

c. kinematic

d. kinetic.

317. The _______ expresses the relation between the external forces applied to a system of particles and the effective force on each particle of the system.

a. Newtons Law of Motion

b. D’alemberts principle

c. Inertia force of particle

d. none of the above.

318. It is defined as the motion of a rigid body in which a straight live passing through any two point of the body always remain parallel to its initial position.

a. Translation

b. velocity

c. acceleration

d. none of the above

319. The motion of translating body moving in a straight line is called _______.

a. rectilinear translation

b. curve linear translation

c. parallel axis

d. kinematic equation of motion

320. The path of the translating body is curved, the motion becomes _____.

a. rectilinear translation

b. parallel axes

c. curve linear translation

d. none of the above.

321. The area under a v-t curve represents the change in ______

a. displacement

b. velocity

c. mass

d. acceleration

322. The area under an a-t curve represents the change in _______

a. acceleration

b. displacement

c. velocity

d. none of the above.

323. When the principle of the motion of the center of gravity is applied to rectilinear translation we obtain _____.

a. ∑x = w?ga

b. 10/ga

c. ∑x =q/g

d. none of the above

324. The normal component of acceleration is expressed by______.

a. αn =v²/r

b. αt = dv/dt

c. α= αn + αt

d. none of the above

325. It is define as that motion of rigid body in which the particles move in a circular paths with their centers on a fixed straight line.

a. translation

b. rotation

c. acceleration

d. none of the above.

326. ________ is measured in radians by the angular distance swept through by any radians of or line in the rotating body

a. angular displacement

b. angular velocity

c. angular acceleration

d. none of the above.

327. It is defined as the motion of rigid body in which all particles in the body remain at a constant distance from a fixed reference plane.

a. angular velocity

b. plane motion

c. rotation

d. translation

328. The expression w/2g v² is defined as _________.

a. resultant work

b. kinetic energy

c. acceleration

d. none of the above

329. The expression S8o∑X.ds define as _________

a. kinetic energy

b. resultant work

c. work energy equation

d. none of the above

330. It is a motion which repeats itself after a define internal of time

a. frequency

b. vibration

c. precession

d. none of the above

331. The maximum displacement of the body from its equilibrium position is known as the ____ of the vibration.

a. frequency

b. acceleration

c. amplitude

d. force

332. Each repetition of the motion is called a _______.

a. period

b. vibrations

c. cycle

d. none of the above.

333. The ______ of the vibration is the reciprocal of the period and is measured in cycles per second.

a. amplitude

b. frequency

c. vibrations

d. none of the above

334. The time required to complete one oscillation backward and forward is called the _____ of the motion.

a. cycle

b. vibrations

c. period

d. none of the above.

335. The condition existing when the impressed frequency is equal to the natural frequency is known as_______.

a. resonance

b. displacement

c. cycle

d. amplitude

336. The speed of rotation at which resonance occurs is called ________.

a. cycle

b. vibrations

c. critical speed

d. rotation

337. the α = w2s is the mathematical description for _________

a. simple harmonic motion

b. work energy method

c. plane motion

d. none of the above

338. __________ is the time rate at which work is done on a body.

a. motion

b. cycle

c. power

d. resultant

339. The __________ is a traditional unit equivalent to 550 ft–lb of work per sec, or 33,000 ft-lb of work per min.

a. watt

b. kilowatt

c. horse power

d. none of the above

340. It is the ratio of power output to power input.

a. amplitude

b. frequency

c. efficiency

d. none of the above.

341. It is defined as that which changes, or tends to change, the state of motion of a body.

a. acceleration

b. force

c. speed

d. velocity

342. An axis passing through the centroid of an area is known as a _________

a. parallel axis

b. centroidal axis

c. radius

d. none of the above

343. It is defined as the time rate of change of displacement.

a. speed

b. velocity

c. distance

d. none of the above

344. It is defined as the time rate of change of velocity

a. displacement

b. speed

c. acceleration

d. none of the above

345. The _______ is a force that results from the attraction between the mass of the body and the mass of the earth.

a. weight

b. density

c. volume

d. none of the above.

346. The line joining the center of gravity and the center of rotation will be called______.

a. T axis

b. N axis

c. Z axis

d. Y axis

347. The line through the center of rotation perpendicular to N will be called _________.

a. Z axis

b. N axis

c. T axis

d. none of the above.

348. The axis of rotation will be called the ______.

a. N axis

b. Z axis

c. T axis

d. none of the above.

349. The _____________ are called the normal and tangential axes since they are respectively normal and tangent to the path of the center of gravity.

a. rotating axes

b. center of percussion

c. centroidal axis

d. none of the above

350. A ________ is defined as a particle at the end of a weightless cord that is allowed to vibrate in a vertical arc of a circle under the influence of gravity and the tension in the cord.

a. force vibrations

b. simple pendulum

c. plane motion

d. none of the above

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