ECAT Pre Engineering Physics Chapter 2 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium

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Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium

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Question # 1

If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:

Question # 2

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

Question # 3

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

Question # 4

The driection of vector si space is specified by:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Scalar product is also called:

Question # 9

Which of the following is scalar quantity?

Question # 10

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

Question # 11

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

Question # 12

An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:

Question # 13

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

Question # 14

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

Question # 15

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:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
2 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
3 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
4 The driection of vector si space is specified by:
A.
One angle
B. Two angles
C. Three angles
D. None of above
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 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 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
8 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
9 Parallel vectors of same magnitudes:
A. Are equal
B. Are unequal
C. When added give the some equal to zero
D. Give the answer equal to zero
10 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-

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