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

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

Question # 2

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 # 3

Cosine of an angle is positive in:

Question # 4

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

Question # 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:

Question # 6

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

Question # 7

Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:

Question # 8

A vector which has magnitude 'one' is called:

Question # 9

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

Question # 10

Parallel vectors of same magnitudes:

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 (sine, cosine, tangent etc) are positive in:

Question # 13

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

Question # 14

By convention, torques producing clockwise rotation are taken as:

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 The change of order of vectors in a dot product of two vectors:
A. Changes its value
B. Doesn't change it's value
C. Changes the direction product quantity
D. None of these
2 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
3 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
4 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-
5 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
6 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
7 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
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 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°
10 Which of the following is scalar quantity?
A. Electric potential
B. Velocity
C. Momentum
D. Force

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