Entry Test MCQ :: Vectors And Equilibrium
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| 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:
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| 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:
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| 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:
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| 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:
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| 5. |
Unit vector n^ is along |
| A. |
x-axis |
B. |
normal on a surface |
| C. |
y-axis |
D. |
z-axis |
Answer: Option B
Explanation:
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| 6. |
Cos?i^ + Sin?j^ is a |
| A. |
vector |
B. |
position vector |
| C. |
vector in the direction at angle ? with x-axis |
D. |
unit vector in the direction at angle ? with x-axis |
Answer: Option D
Explanation:
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| 7. |
Maximum number of rectangular components are |
Answer: Option C
Explanation:
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| 8. |
Maximum number of components of a vector may be |
Answer: Option D
Explanation:
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| 9. |
Which one is not correct for a vector A= 2??2 i^ + ??2 j^? |
| A. |
has direction ?=45? with x-axis |
B. |
has magnitude 2 |
| C. |
has magnitude 2 and direction ?=45? with y-axis |
D. |
has magnitude -2 |
Answer: Option D
Explanation:
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| 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:
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