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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The direction of vector in space is specified by:

Question # 6

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

Question # 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:

Question # 8

Torque is also called:

Question # 9

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

Question # 10

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

Question # 11

Two vectors having different magnitudes:

Question # 12

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

Question # 13

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

Question # 14

Scalar product is also called:

Question # 15

The vector in space has:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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
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 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
4 Choose the set of physical quantities, which have both numerical and directional properties:
A. Velocity, mass
B. Speed, acceleration
C. acceleration weight
D. Distance, force
5 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
6 Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:
A. 2 N
B. - 2 N
C. 18 N
D. 36 N
7 The vector in space has:
A. One component
B. Two components
C. Three components
D. None of these
8 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
9 The direction of a vector in space requires:
A. X-axis
B. X and Y-axes
C. XYZ axes
D. Y and Z-axes
10 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these

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