ECAT Pre Engineering Physics Chapter 2 MCQ Test With Answer

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

Two vectors having different magnitudes:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The driection of vector si space is specified by:

Question # 9

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

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

Which of the following is scalar quantity?

Question # 12

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

Question # 13

A vector which has magnitude 'one' is called:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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°
4 Choose the set of physical quantities, which have both numerical and directional properties:
A. Velocity, mass
B. Speed, acceleration
C. acceleration weight
D. Distance, force
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:
A. Zero to 3 N
B. 1 N to 13 N
C. 13 N to 3 N
D. None of these
6 Scalar product is also called:
A. Cross product
B. Dot product
C. Product scalar
D.
Product vector
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 The direction of a vector in space requires:
A. X-axis
B. X and Y-axes
C. XYZ axes
D. Y and Z-axes
9 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
10 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°

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