Theory of Machines Quiz | Theory of Machines Objective Type Questions & Answers

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Questions
21 Sensitivity of an isochronous governor is
A infinite
B two
C zero
D one

Answer: infinite
22 In which one of the following is a flywheel generally employed
A Punching machine
B Gear bor
C Electric motor
D Lathe

Answer: Punching machine
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23 A pair of action and reaction forces acting on a body are known as
A constraint forces
B applied forces
C accelerating forces
D inertia forces

Answer: constraint forces
24 The gear train usually employed in clocks is a
A reverted gear train
B differential gear
C simple gear train
D sun and planet gear

Answer: reverted gear train
25 The difference between space width and tooth thickness is
A Tooth space
B Backlash
C Clearance
D Flank

Answer: Backlash
26 Select the positive drive amongst the following:
A gear drive
B chain drive
C rope drive
D V-belt drive

Answer: gear drive
27 The example of lower pair is
A automobile steering gear
B straight line motion mechanisms
C shaft revolving in a bearing
D all of the above

Answer: all of the above
28 If two moving elements have surface contact in motion, such pair is known as
A higher pair
B lower pair
C sliding pair
D rolling pair

Answer: higher pair
29 Which of the following is a lower pair
A ball and socket
B piston and cylinder
C cam and follower
D (A) and (B) above

Answer: (A) and (B) above
30 Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts
A applied mechanics
B theory of machines
C mechanisms
D kinetics

Answer: theory of machines
31 Which of the following disciplines provides study of relative motion between the parts of a machine
A kinematics
B kinetics
C theory of machines
D applied mechanics

Answer: kinematics
32 Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts
A applied mechanics
B theory of machines
C kinetics
D mechanisms

Answer: kinetics
33 Pitch point on a cam is
A any point on pitch curve
B the point on cam pitch curve having the maximum pressure angle
C any point on pitch circle
D the point on cam pitch curve having the minimum pressure angle

Answer: the point on cam pitch curve having the maximum pressure angle
34 Rectilinear motion of piston is converted into rotary by
A cross head
B slider crank
C connecting rod
D gudgeon pin

Answer: slider crank
35 A universal joint is an example of
A higher pair
B lower pair
C rolling pair
D sliding pair

Answer: lower pair
36 The purpose of a link is to
A act as a support
B transmit motion
C guide other links
D all of the above

Answer: all of the above
37 Any point on a link connecting double slider crank chain will trace a
A ellipse
B parabola
C straight line
D circle

Answer: ellipse
38 The example of rolling pair is
A ball and socket joint
B ball bearing and roller bearing
C bolt and nut
D lead screw of a lathe

Answer: ball bearing and roller bearing
39 Pulley in a belt drive acts as
A rolling pair
B sliding pair
C cylindrical pair
D turning pair

Answer: rolling pair
40 The example of spherical pair is
A bolt and nut
B lead screw of a lathe
C ball and socket joint
D ball bearing and roller bearing

Answer: ball and socket joint

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