ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

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

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

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ECAT Physics Chapter 2 Vectors and Equilibrium

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Question # 1

By convention, torques producing clockwise rotation are taken as:

Question # 2

Which of the following is scalar quantity?

Question # 3

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 # 4

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:

Question # 5

A force of 5 n is acting Y-axis. Its component along X-axis is:

Question # 6

Cosine of an angle is positive in:

Question # 7

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

Question # 8

The direction of a vector in space requires:

Question # 9

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 # 10

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

Question # 11

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

Question # 12

Choose the set of physical quantities, which have both numerical and directional properties:

Question # 13

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

Question # 14

An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:

Question # 15

If a vector lies in second quadrant, than Bxand Byare:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 All trigonometric functions (since, cosine tangent etc. ) are positive in:
A. 1st Quadrant
B. 2nd Quadrant
C. 3rd Quadrant
D. 4th Quadrant
2 The direction of vector in space is specified by:
A. One angle
B. Two angles
C. Three angles
D. None of these
3 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
4 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
5 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
6 When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:
A. 60°
B. 90°
C. 120°
D. 150°
7 A vector which has magnitude 'one' is called:
A. Resultant vector
B. A unit vector
C. Position vector
D. None of these
8 The change of order of vectors in a dot product of two vectors:
A. Changes its value
B. Doesn't change it's value
C. Changes the direction product quantity
D. None of these
9 The perpendicular distance from the axis of rotation to the line of action of force is called:
A. Moment arm
B. Moment of a force
C. Torque
D. Non of these
10 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

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