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Objective Questions
Engineering
Mechanical
ME Set-3
Theory of Machines
195

Theory of Machines MCQ with Answers

195) The connecting rod bolts are tightened up so that tightening stress

is just sufficient to hold parts together

approaches yield point

is 50% of yield point

is about yield point divided by safety factor

Answer is:

approaches yield point

Theory of Machines MCQ with Answers

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196) The connecting rod bolts are tightened up with initial tension greater than the external load so that

joint may not open up

bolts are weakest elements

the resultant load on the bolt would not be affected by the external cyclic load

bolts will not loosen during service

Answer is:

bolts will not loosen during service

197) If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited

square

acme

buttress

BSW

Answer is:

buttress

If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited

198) When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at

shank

head

in the middle

at the thread

Answer is:

at the thread

199) The shock absorbing capacity of a bolt can be increased by

tightening it properly

increasing shank diameter

grinding the shank

making shank diameter equal to core diameter of thread.

Answer is:

making shank diameter equal to core diameter of thread.

Theory of Machines MCQ with Answers

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195) The connecting rod bolts are tightened up so that tightening stress

approaches yield point

Theory of Machines MCQ with Answers

Related Theory of Machines MCQ with Answers

196) The connecting rod bolts are tightened up with initial tension greater than the external load so that

bolts will not loosen during service

197) If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited

buttress

198) When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at

at the thread

199) The shock absorbing capacity of a bolt can be increased by

making shank diameter equal to core diameter of thread.

Theory of Machines MCQ with Answers