The two elements of a pair are said to form a higher pair, when they

A have a surface contact when in motion
B have a line or point contact when in motion
C are kept in contact by the action of external forces, when in motion
D permit relative motion

Correct Answer: have a line or point contact when in motion

When the two elements of a pair have a line or point contact when relative motion takes place and the motion between the two elements is partly turning and partly sliding, then the pair is known as higher pair.
Bissoy MCQ
#Machine Kinematics #Kinematic Pair

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A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
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The pair is known as a higher pair, when the relative motion between the elements of a pair is
A turning only
B sliding only
C rolling only
D partly turning and partly sliding
The two elements of a pair are said to form a _________ when they permit relative motion between them.
A Open pair
B Kinematic pair
C Sliding pair
D None of these
When the two elements of a pair have __________ when in motion, it is said to a lower pair.
A Line or point contact
B Surface contact
C Body contact
D None of these
If A has 4 elements and B has 8 elements then the minimum and maximum number of elements in A∪B are respectively __
A 4,8
B 8,12
C 4,12
D 6,12
When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a
A lower pair
B higher pair
C self-closed pair
D force-closed pair
When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a
A lower pair
B higher pair
C self-closed pair
D force-closed pair
In an open pair, the two elements of a pair
A have a surface contact when in motion
B have a line or point contact when in motion
C are kept in contact by the action of external forces, when in motion
D are not held mechanically
Which of the following selector is used to select elements that are read-only. When applied to form elements, this would select fields with the readonly attribute set?
A :valid
B :target
C :read-only
D :required

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