ECAT Pre General Science Physics Chapter 2 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium

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ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium

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Question # 1

If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:

Question # 2

All trigonometric functions (sine, cosine, tangent etc) are positive in:

Question # 3

The sum of two or more vectors is equal to a single vector which is called:

Question # 4

If the vector 5 N lies along with x-axis, then its component along y-axis will be:

Question # 5

The magnitude of the resultant of two forces may be increased by:

Question # 6

The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:

Question # 7

A vector which has magnitude 'one' is called:

Question # 8

A person starts his journey from a point 0, travels 4 Km SW, then 4 Km NW, and finally 4 Km north-east. At what distance is he now from point 0?

Question # 9

Parallel vectors of same magnitudes:

Question # 10

The perpendicular distance from the axis of rotation to the line of action of force is called:

Question # 11

The vector is space has:

Question # 12

Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:

Question # 13

The change of order of vectors in a dot product of two vectors:

Question # 14

Cosine of an angle is positive in:

Question # 15

The driection of vector si space is specified by:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:
A. 45°
B. 90°
C. 135°
D. Zero
2 Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:
A. 100 N
B. 70 N
C. 20 N
D. Zero
3 Two forces each of 10 N act on a body, if the force are inclined at 30° and 60° respectively with x-axis, then x-component of their resultant is:
A. 20 N
B. 13.66 N
C. 10 N
D. 8.66 N
4 Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:
A. 30°
B. 45°
C. 60°
D. 90°
5 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these
6 Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:
A. 2 N
B. - 2 N
C. 18 N
D. 36 N
7 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these
8 The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:
A. 20 m/sec
B. 5 m/sec
C. 3 m.sec
D. None of these
9 Two vectors having different magnitudes:
A. Have their directions opposite
B. May have their resultant zero
C. Cannot have their resultant zero
D. None of these
10 The magnitude of resultant of three vectors is 3. Its x-component is one, y-component is two, then its z-component is:
A. 0
B. 1
C. 2
D. 3

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