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

A vector which has magnitude 'one' is called:

Question # 2

The direction of a vector in space requires:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The perpendicular distance from the axis of rotation to the line of action of force is called:

Question # 8

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 # 9

Scalar product is also called:

Question # 10

The driection of vector si space is specified by:

Question # 11

Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:

Question # 12

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

Question # 13

The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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
2 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°
3 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
4 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
5 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
6 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
7 Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:
A. 100 N
B. 70 N
C. 20 N
D. Zero
8 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
9 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
10 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

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