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

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 # 2

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

Question # 3

The direction of a vector in space requires:

Question # 4

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

Question # 5

The vector is space has:

Question # 6

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

Question # 7

The direction of vector in space is specified by:

Question # 8

The driection of vector si space is specified by:

Question # 9

Cosine of an angle is positive in:

Question # 10

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 # 11

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

Question # 12

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

Question # 13

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

Question # 14

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 # 15

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

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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 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
3 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
4 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these
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 Unit vector is used to specify:
A. Magnitude of a vector
B. Dimensions of a vector
C. Direction of a vector
D. Position of a vector
7 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
8 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
9 For measuring the angle between two vectors graphically, we join:
A. Tails of both the vectors
B. Tail of one vector with the head of other
C. Heads of both the vectors
D. None of these
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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