ECAT Pre Engineering Physics Chapter 2 MCQ Test With Answer

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

Try The 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

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

Question # 2

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

Question # 3

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

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

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

Question # 6

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:

Question # 7

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

Question # 8

Which of the following is scalar quantity?

Question # 9

Unit vector is used to specify:

Question # 10

Cosine of an angle is positive in:

Question # 11

When a vector is multiplied by a negative number, its direction:

Question # 12

Tick the correct answer:

Question # 13

Two vectors having different magnitudes:

Question # 14

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

Question # 15

A vector which has magnitude 'one' is called:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The vector in space has:
A. One component
B. Two components
C. Three components
D. None of these
4 The direction of a vector in space requires:
A. X-axis
B. X and Y-axes
C. XYZ axes
D. Y and Z-axes
5 If the vector 5 N lies along with x-axis, then its component along y-axis will be:
A. Zero
B. 5 N
C. 7 N
D. 10 N
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 Two forces of 10N and 8N are applied simultaneously to a body. The maximum value of their resultant is:
A. 20 N
B. -2 N
C. 18 N
D. 36 N
8 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
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 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these

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