Engineering Questions with Answers - Multiple Choice Questions
Machine Kinematics Questions and Answers – Mechanism – 2
1 - Question
In a coupling rod of a locomotive, each of the four pairs is a _____________ pair.
a) sliding
b) turning
c) rolling
d) screw
View Answer
Answer: b
Explanation: In a locomotive, one rod of the coupling rod can only turn or revolve about a fixed axis of another rod. This takes place only in case of turning pair.
2 - Question
Whitworth quick return motion mechanism consists of three turning pairs and one sliding pair.
a) True
b) False
View Answer
Answer: a
Explanation: Whitworth quick return motion mechanism is a form of single slider crank chain and it consists of one sliding pair and three turning pairs.
3 - Question
In a single slider crank chain
a) each of the four pairs is a turning pair
b) one is a turning pair and three are sliding pairs
c) two are turning pairs and two are sliding pairs
d) three are turning pairs and one is a sliding pair
View Answer
Answer: d
Explanation: Single slider crank chain consists of one sliding pair and three turning pairs.
Four bar chain consists of four links and each of them forms a turning pair.
4 - Question
The mechanism consisting of three turning pairs and one sliding pair, is called a
a) single slider crank chain
b) whitworth quick return motion mechanism
c) crank and slotted lever quick return motion mechanism
d) all of the mentioned
View Answer
Answer: d
Explanation: All the mechanisms mentioned above are forms of single slider crank chain only and hence, they all contain three turning pairs and one sliding pair. The inversion of a single slider crank chain are found in the following mechanism:
a) Pendulum pump or Bull engine
b) Rotary internal combustion engine
c) Oscillating cylinder engine
d) Crank and slotted lever quick return motion mechanism
e) Whitworth quick return motion mechanism
5 - Question
Which of the following is an inversion of a single slider crank chain?
a) Pendulum pump
b) Oscillating cylinder engine
c) Rotary internal combustion engine
d) All of the mentioned
View Answer
Answer: d
Explanation: All the mechanisms mentioned above are forms of single slider crank chain only and hence, they all contain three turning pairs and one sliding pair. The inversion of a single slider crank chain are found in the following mechanism:
a) Pendulum pump or Bull engine
b) Rotary internal combustion engine
c) Oscillating cylinder engine
d) Crank and slotted lever quick return motion mechanism
e) Whitworth quick return motion mechanism.
6 - Question
A point on a connecting link of a double slider crank mechanism traces a
a) straight line path
b) hyperbolic path
c) parabolic path
d) elliptical path
View Answer
Answer: d
Explanation: None.
7 - Question
The whitworth quick return motion mechanism is formed in a slider crank chain when the
a) coupler link is fixed
b) longest link is a fixed link
c) slider is a fixed link
d) smallest link is a fixed link
View Answer
Answer: a
Explanation: None.
8 - Question
Scotch yoke mechanism is used to generate
a) sine functions
b) square roots
c) logarithms
d) inversions
View Answer
Answer: a
Explanation: None.
9 - Question
Which of the following is an inversion of a double slider crank chain?
a) Oldham’s coupling
b) Elliptical trammel
c) Scotch yoke mechanism
d) All of the mentioned
View Answer
Answer: d
Explanation: A double slider crank chain consists of two sliding pairs and two turning pairs. The inversions of a double slider crank chain are as follows:
a) elliptical trammel
b) scotch yoke mechanism
c) oldham’s coupling.
10 - Question
Whitworth quick return motion mechanism is an inversion of a double slider crank chain.
a) True
b) False
View Answer
Answer: b
Explanation: Whitworth quick return motion mechanism is a form of single slider crank chain and it consists of one sliding pair and three turning pairs.
11 - Question
A rotary internal combustion engine has __________ cylinders.
a) four
b) five
c) six
d) seven
View Answer
Answer: d
Explanation: None.