Q.1
In which of the following mechanism the relative motions of the rigid bodies are in one plane or in parallel planes?
  • a) spatial mechanism
  • b) spherical mechanism
  • c) flexure mechanism
  • d) planar mechanism
Q.2
If there are redundant constraints in the chain and it forms a statically indeterminate structure, what is the degree of freedom or the mobility of this structure?
  • a) More than 0
  • b) Less than 0
  • c) 1
  • d) 2
Q.3
If the shortest link is fixed, what type of mechanism is obtained?
  • a) Crank rocker mechanism
  • b) Linkage is not planar
  • c) Double crank mechanism
  • d) Double rocker mechanism
Q.4
What is the working depth of the gear and the pinion of the bevel gears?
  • a) 0.7 m, 2 m
  • b) 3 m, 0.4 m
  • c) 0.4 m, 3 m
  • d) 2 m, 0.7 m
Q.5
Which of the following mechanism is an approximately straight-line motion mechanism?
  • a) Hart’s mechanism
  • b) Watt’s mechanism
  • c) Scott Russell’s mechanism
  • d) Peaucellier mechanism
Q.6
__________ mechanism is a crossed four bar chain mechanism in early steam engines to guide the piston rod in a cylinder to have an approximate straight line motion.
  • a) Chebychev’s
  • b) Watt’s
  • c) Peaucellier’s
  • d) Grasshopper
Q.7
For a Whitworth quick return motion mechanism β = 110°. Find the ratio of time of cutting stroke to time of return stroke.
  • a) 0.42
  • b) 0.44
  • c) 2.27
  • d) 2.37
Q.8
Which of these is not a type of clutch?
  • a) Cylindrical
  • b) Centrifugal
  • c) Single disc
  • d) Conical
Q.9
In a multi plate clutch, the formula for T is given by ______
  • a) n.µ.W.r1
  • b) n.µ.W.(r1+r2)
  • c) n.µ.W.R
  • d) n.µ.W.r2
Q.10
In a conical clutch, the mean radius of the bearing surface ismm whereas the breadth ismm. Find the inner and outer radii. The semi cone angle is 30°.
  • a) 140 mm, 160 mm
  • b) 160 mm, 140 mm
  • c) 155 mm, 145 mm
  • d) 145 mm, 155 mm
Q.11
If the outer and inner radius of the contact surfaces aremm andmm respectively and the semi cone angle is 22.5°, find the value of the face width required.
  • a) 65.33 mm
  • b) 89.43 mm
  • c) 23.87 mm
  • d) 78.94 mm
Q.12
The smaller and generally the driving gear of a pair of mated gears is called _________
  • a) rack
  • b) pinion
  • c) module
  • d) pitch
Q.13
The distance measured along the circumference of the pitch circle from a point on one tooth to the same point on the adjacent tooth is called ________________
  • a) circular pitch
  • b) line of centers
  • c) pitch diameter
  • d) pitch point
Q.14
The locus of a point on the pitch circle from the beginning to end of engagement of two mating gears is called as ___________
  • a) Arc of contact
  • b) Path of contact
  • c) Path of approach
  • d) Arc of approach
Q.15
The ratio of angle of action to the pitch angle is called ___________
  • a) angle of recess
  • b) contact ratio
  • c) space width
  • d) angle of approach
Q.16
The angle turned by the gear from the beginning to the end of engagement of a pair of teeth is called ______________
  • a) angle of action
  • b) angle of contact
  • c) angle of recess
  • d) angle of approach
Q.17
The condition which must be fulfilled by two gear tooth profiles to maintain a constant angular velocity ratio between them is called __________________
  • a) path of contact
  • b) interference
  • c) arc of contact
  • d) law of gearing
Q.18
Velocity of sliding at the pitch point = (ωp + ωg) x _____________
  • a) arc of approach
  • b) path of contact
  • c) path of recess
  • d) 0
Q.19
The distance travelled by a point on either pitch circle of the two wheels during the period of contact of a pair of teeth is called ____________________
  • a) angle of action
  • b) path of contact
  • c) arc of contact
  • d) contact ratio
Q.20
The contact ratio is the ratio of arc of contact to the ____________
  • a) module
  • b) circular pitch
  • c) dedendum
  • d) circular pitch
0 h : 0 m : 1 s