Machine Design MCQs
Practice free Machine Design multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 836 questions — no login required.
Question 307hard
For hardening alloy steels and high speed steels, they are heated to
Question 308hard
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to
Question 309hard
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
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Question 310hard
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be
Question 311medium
The largest diameter of an external or internal screw thread is known as
Question 312medium
The smallest diameter of an external or internal screw thread is known as
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Question 313hard
When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where $${\tau _{\text{u}}}$$ = Ultimate shear strength of the material of the plate)
Question 314medium
The algebraic difference between the maximum limit and the basic size is called
Question 315medium
Which of the following spring is used in mechanical wrist watch?