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

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

Question # 2

By convention, torques producing clockwise rotation are taken as:

Question # 3

Which of the following is scalar quantity?

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The driection of vector si space is specified by:

Question # 8

The direction of vector in space is specified by:

Question # 9

A person starts his journey from a point 0, travels 4 Km SW, then 4 Km NW, and finally 4 Km north-east. At what distance is he now from point 0?

Question # 10

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 # 11

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

Question # 12

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

Question # 13

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 # 14

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

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The vector in space has:
A. One component
B. Two components
C. Three components
D. None of these
4 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°
5 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
6 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
7 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
8 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
9 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
10 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these

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