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

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 # 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:

Question # 3

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 # 4

Scalar product is also called:

Question # 5

Torque is also called:

Question # 6

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

Question # 7

Unit vector is used to specify:

Question # 8

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

Question # 9

By convention, torques producing clockwise rotation are taken as:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Parallel vectors of same magnitudes:

Question # 15

The vector is space has:

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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 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
3 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
4 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
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 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?
A. 0 Km
B. 4 Km
C. 8 Km
D. 12 Km
7 The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:
A. 20 m/sec
B. 5 m/sec
C. 3 m.sec
D. None of these
8 The direction of vector in space is specified by:
A. One angle
B. Two angles
C. Three angles
D. None of these
9 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
10 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

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