ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

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

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

By convention, torques producing clockwise rotation are taken as:

Question # 3

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

Question # 4

Tick the correct answer:

Question # 5

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

Question # 6

The driection of vector si space is specified by:

Question # 7

Unit vector is used to specify:

Question # 8

A vector which has magnitude 'one' is called:

Question # 9

Two vectors having different magnitudes:

Question # 10

The magnitude of resultant of three vectors is 3. Its x-component is one, y-component is two, then its z-component is:

Question # 11

The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:

Question # 12

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

Question # 13

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

Question # 14

The direction of vector in space is specified by:

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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:
A. Zero to 3 N
B. 1 N to 13 N
C. 13 N to 3 N
D. None of these
2 Which of the following is scalar quantity?
A. Electric potential
B. Velocity
C. Momentum
D. Force
3 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
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 Parallel vectors of same magnitudes:
A. Are equal
B. Are unequal
C. When added give the some equal to zero
D. Give the answer equal to zero
6 If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:
A. 45°
B. 315°
C. 135°
D. 225°
7 The sum of two or more vectors is equal to a single vector which is called:
A. Component vector
B. Resultant vector
C. Product vector
D. None of these
8 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
9 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°
10 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass

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