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

Question # 2

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

Question # 3

The vector is space has:

Question # 4

By convention, torques producing clockwise rotation are taken as:

Question # 5

If a vector lies in second quadrant, than Bxand Byare:

Question # 6

The direction of a vector in space requires:

Question # 7

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

Question # 8

Scalar product is also called:

Question # 9

The driection of vector si space is specified by:

Question # 10

Parallel vectors of same magnitudes:

Question # 11

Cosine of an angle is positive in:

Question # 12

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

Question # 13

Which of the following is scalar quantity?

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 By convention, torques producing clockwise rotation are taken as:
A. Positive
B. Nagative
C. Zero
D. None of these
2 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-
3 Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:
A. 100 N
B. 70 N
C. 20 N
D. Zero
4 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
5 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
6 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
7 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
8 The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:
A. 0°
B. 30°
C. 45°
D. 60°
9 The vector in space has:
A. One component
B. Two components
C. Three components
D. None of these
10 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

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