A vector can always have_____________

A unit vector along the direction perpendicular to its direction

Only one component along any of the axis

Only two components along any of the axis

Only three components along any of the axis

A unit vector along the direction perpendicular to its direction

Which is true for the vector provided the only position coordinates given?

(Initial positions coordinates Final position coordinates) gives the vector form of the vector

(Final position coordinates + initial positions coordinates) gives the vector form of the vector

(Final position coordinates initial positions coordinates) gives the vector form of the vector

(Initial positions coordinates Final position coordinates) gives the vector form of the vector

(Initial positions coordinates + Final position coordinates) gives the vector form of the vector

Explore topic-wise MCQs in Engineering Mechanics.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.	A vector can always have_____________
A.	Only one component along any of the axis
B.	Only two components along any of the axis
C.	Only three components along any of the axis
D.	A unit vector along the direction perpendicular to its direction
Answer» D. A unit vector along the direction perpendicular to its direction

Discussion

2.	Which is true for the vector provided the only position coordinates given?
A.	(Final position coordinates + initial positions coordinates) gives the vector form of the vector
B.	(Final position coordinates initial positions coordinates) gives the vector form of the vector
C.	(Initial positions coordinates Final position coordinates) gives the vector form of the vector
D.	(Initial positions coordinates + Final position coordinates) gives the vector form of the vector
Answer» C. (Initial positions coordinates Final position coordinates) gives the vector form of the vector

Discussion

3.	Three vectors emerging from a point are always in a single plane.
A.	True
B.	False
Answer» C.

Discussion

4.	Two vectors emerging from a point are always in a single plane.
A.	True
B.	False
Answer» B. False

Discussion

5.	The value cos-1(-3/7) + cos-1(2/7) + cos-1(6/7) is ____________
A.	215.4
B.	273.4
C.	188.4
D.	219.4
Answer» E.

Discussion

6.	A force vector is along 4i 4k direction and has a magnitude 100N and another force vector is along 4i +2j -4k and has a magnitude of 120N. What is the resultant of both forces?
A.	80i + 40j 80k N
B.	80i 40j 80k N
C.	151i + 40j 80k N
D.	151i+ 40j 151k N
Answer» E.

Discussion

7.	What is the magnitude of the vector, 12i 8j 24k?
A.	18
B.	28
C.	38
D.	48
Answer» C. 38

Discussion

8.	Express the vector in the Cartesian Form, if the angle made by it with y and z axis is 60 and 45 respectively. Also, it makes an angle of with the x-axis. The magnitude of the force is 200N.
A.	100i + 100j + 141.4k N
B.	100i 100j + 141.4k N
C.	100i + 100j 141.4k N
D.	100i 100j 141.4k N
Answer» B. 100i 100j + 141.4k N

Discussion

Explore topic-wise MCQs in Engineering Mechanics.

A vector can always have_____________

Which is true for the vector provided the only position coordinates given?

Three vectors emerging from a point are always in a single plane.

Two vectors emerging from a point are always in a single plane.

The value cos-1(-3/7) + cos-1(2/7) + cos-1(6/7) is ____________

A force vector is along 4i 4k direction and has a magnitude 100N and another force vector is along 4i +2j -4k and has a magnitude of 120N. What is the resultant of both forces?

What is the magnitude of the vector, 12i 8j 24k?

Express the vector in the Cartesian Form, if the angle made by it with y and z axis is 60 and 45 respectively. Also, it makes an angle of with the x-axis. The magnitude of the force is 200N.