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

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

Question # 2

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

Question # 3

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

Question # 4

Cosine of an angle is positive in:

Question # 5

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

Question # 6

The direction of vector in space is specified by:

Question # 7

Which of the following is scalar quantity?

Question # 8

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

Question # 9

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

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

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

Question # 12

The driection of vector si space is specified by:

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

The vector in space has:

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
2 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
3 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
4 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
5 Scalar product is also called:
A. Cross product
B. Dot product
C. Product scalar
D.
Product vector
6 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these
7 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°
8 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-
9 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:
A. 20 N
B. 13.66 N
C. 10 N
D. 8.66 N
10 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

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