Entry Test MCQ :: Vectors And Equilibrium





1. 
Rectangular coordinate system is also called 
A. 
polar coordinate system 
B. 
Cartesian coordinate system 
C. 
cylindrical coordinate system 
D. 
spherical coordinate system 
Answer: Option B
Explanation:

2. 
The direction of a vector in spece is specified by 
A. 
one angle 
B. 
two angle 
C. 
three angle 
D. 
no angle 
Answer: Option C
Explanation:

3. 
Addition of vector obeys 
A. 
commutative law 
B. 
distributive law 
C. 
associative law 
D. 
all given laws in a , b and c 
Answer: Option D
Explanation:

4. 
A vector can be multiplied by a number. The number may be 
A. 
dimensionless 
B. 
dimensional scalar 
C. 
negative 
D. 
all a, b and c are correct 
Answer: Option D
Explanation:

5. 
Unit vector n^ is along 
A. 
xaxis 
B. 
normal on a surface 
C. 
yaxis 
D. 
zaxis 
Answer: Option B
Explanation:

6. 
Cos?i^ + Sin?j^ is a 
A. 
vector 
B. 
position vector 
C. 
vector in the direction at angle ? with xaxis 
D. 
unit vector in the direction at angle ? with xaxis 
Answer: Option D
Explanation:

7. 
Maximum number of rectangular components are 
Answer: Option C
Explanation:

8. 
Maximum number of components of a vector may be 
Answer: Option D
Explanation:

9. 
Which one is not correct for a vector A= 2??2 i^ + ??2 j^? 
A. 
has direction ?=45? with xaxis 
B. 
has magnitude 2 
C. 
has magnitude 2 and direction ?=45? with yaxis 
D. 
has magnitude 2 
Answer: Option D
Explanation:

10. 
The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is 
Answer: Option D
Explanation:

Read more:

