Fundamentals of Machine Design (3141907) MCQs

MCQs of Design Against Static Load

Showing 21 to 30 out of 38 Questions
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21.
In a steam engine, the piston rod is usually connected to the crosshead by means of a
(a) knuckle joint
(b) universal joint
(c) flange coupling
(d) cotter joint
Answer:

Option (d)

22.
In a steam engine, the valve rod is connected to an eccentric by means of a
(a) knuckle joint
(b) universal joint
(c) flange coupling
(d) cotter joint
Answer:

Option (a)

23.
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)
(a) 0.5 d
(b) 0.8 d
(c) d
(d) 1.2 d
Answer:

Option (c)

24.
In levers, leverage is the ratio of
(a) the load lifted to the effort applied
(b) the mechanical advantage to the velocity ratio
(c) load arm to the effort arm
(d) effort arm to the load arm
Answer:

Option (d)

25.
The cross-section of the arm of a bell crank lever is
(a) rectangular
(b) elliptical
(c) I-section
(d) any one of these
Answer:

Option (d)

26.
All the types of levers are subjected to
(a) twisting moment
(b) bending moment
(c) direct axial load
(d) combined twisting and bending moment
Answer:

Option (b)

27.
In designing a rocker arm for operating the exhaust valve, the ratio of the length to the diameter of the fulcrum and roller pin is taken as
(a) 1.25
(b) 1.5
(c) 1.75
(d) 2
Answer:

Option (a)

28.
The design of the pin of a rocker arm of an I.C. Engine is based on
(a) tensile, creep and bearing failure
(b) creep, bearing and shearing failure
(c) bearing, shearing and bending failure
(d) none of these
Answer:

Option (c)

29.
The rocker arms in internal combustion engines are of first type levers.
(a) Correct
(b) Incorrect
Answer:

Option (a)

30.
When the fulcrum is in between the load and effort, the lever is said to be of
(a) first type
(b) second type
(c) third type
(d) any one of these
Answer:

Option (a)

Showing 21 to 30 out of 38 Questions
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