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Physics ECAT Pre Engineering Chapter 2 Vectors and Equilibrium Online Test MCQs With Answers
Question # 1
The driection of vector si space is specified by:
Choose an answer
One angle
Two angles
Three angles
None of above
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Question # 2
The direction of a vector in space requires:
Choose an answer
X-axis
X and Y-axes
XYZ axes
Y and Z-axes
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Question # 3
An vector of 10 N makes an angle of 45
° with x-axis. Angle between its rectangular components with be:
Choose an answer
45
°
90
°
135
°
Zero
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Question # 4
A vector which has magnitude 'one' is called:
Choose an answer
Resultant vector
A unit vector
Position vector
None of these
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Question # 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?
Choose an answer
0 Km
4 Km
8 Km
12 Km
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Question # 6
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:
Choose an answer
Zero to 3 N
1 N to 13 N
13 N to 3 N
None of these
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Question # 7
The vector in space has:
Choose an answer
One component
Two components
Three components
None of these
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Question # 8
If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:
Choose an answer
45
°
315
°
135
°
225
°
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Question # 9
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:
Choose an answer
Zero to 3 N
1 N to 13 N
13 N to 3 N
None of these
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Question # 10
Tick the correct answer:
Choose an answer
Torque is a vector quantity
Torque is the turning effect of a force
Torque is called moment of a force
All of above
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Question # 11
The change of order of vectors in a dot product of two vectors:
Choose an answer
Changes its value
Doesn't change it's value
Changes the direction product quantity
None of these
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Question # 12
Parallel vectors of same magnitudes:
Choose an answer
Are equal
Are unequal
When added give the some equal to zero
Give the answer equal to zero
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Question # 13
Two vectors having different magnitudes:
Choose an answer
Have their directions opposite
May have their resultant zero
Cannot have their resultant zero
None of these
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