Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium

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

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Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium

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Question # 1

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

Question # 2

Tick the correct answer:

Question # 3

For measuring the angle between two vectors graphically, we join:

Question # 4

When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:

Question # 5

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

Question # 6

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 # 7

Two forces of 10N and 8N are applied simultaneously to a body. The maximum value of their resultant is:

Question # 8

Cosine of an angle is positive in:

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

Question # 12

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

Question # 13

Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:

Question # 14

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

Question # 15

The vector in space has:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
2 The magnitude of the resultant of two forces may be increased by:
A. Increasing the angle between them
B. Decreasing the angle between them
C. Drawing a triangle to represent them
D. None of these
3 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-
4 When a vector is multiplied by a negative number, its direction:
A. Remains the same
B. Changes
C. Changes by 180°
D. None of these
5 If two forces of magnitudes 3.5 and 2.5 N act on a body such that the angle between the forces is zero, then magnitude of the resultant will be:
A. 1.0 N
B. 6 N
C. 3.5 N
D. 12 N
6 A force of 5 n is acting Y-axis. Its component along X-axis is:
A. 7 N
B. 5 N
C. Zero
D. 10 N
7 Scalar product is also called:
A. Cross product
B. Dot product
C. Product scalar
D.
Product vector
8 Unit vector is used to specify:
A. Magnitude of a vector
B. Dimensions of a vector
C. Direction of a vector
D. Position of a vector
9 The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:
A. 0°
B. 30°
C. 45°
D. 60°
10 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these

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