Untitled Flashcard

Front

Which of the following is a type of kinematic pair? Lower pair, Higher pair, Sliding pair, Revolute pair

Back

Revolute pair

Front

In a kinematic link, which type of pair allows relative motion of two links about a fixed axis?

Back

Revolute pair

Front

What type of pair is used when two links are allowed to slide relative to each other along a fixed path?

Back

Prismatic pair

Front

In a four-bar chain, which link is fixed?

Back

The ground link

Front

The combination of two or more kinematic pairs is referred to as:

Back

Kinematic chain

Front

The Kutzbach criterion helps in determining the mobility of a mechanism. What does 'm' represent in this criterion?

Back

Number of degrees of freedom

Front

According to the Kutzbach criterion, the mobility 'M' of a planar mechanism is given by:

Back

M = 3(L - 1) - 2P

Front

In a planar mechanism with 5 links and 6 pairs, what is its mobility using the Kutzbach criterion?

Back

The mobility is calculated using the formula M = L - J + 1, where L is the number of links and J is the number of joints. For this mechanism, M = 5 - 6 + 1 = 0.

Front

Grashoff's Law states that in a four-bar mechanism, the sum of the lengths of the shortest and longest links should be:

Back

Greater than the sum of the other two links

Front

Which condition is true for a four-bar mechanism to be fully rotatable according to Grashoff's Law? Options: Sum of shortest and longest link should be greater than the sum of the other two links, Sum of shortest and longest link should be equal to the sum of the other two links, Sum of shortest and longest link should be less than the sum of the other two links, Any condition

Back

Sum of shortest and longest link should be greater than the sum of the other two links