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
• 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
• a) 65.33 mm
• b) 89.43 mm
• c) 23.87 mm
• d) 78.94 mm
Q.12
• 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