Explore topic-wise MCQs in Machine Design.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.

1.

If any cross section is subjected to direct tensile stress and bending stress, then find the dimension of cross section. Given length & breadth are t and 2t respectively. F=25kN acts on the top fibre of the cross section, M=F x t . Also maximum allowable tensile stress =100N/mm .

A. 25.5mm
B. 30.2mm
C. 27.55mm
D. None of the mentioned
Answer» B. 30.2mm
Discussion
2.

If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods. Given: Max allowable compressive stress=25N/mm , thickness of each eye of fork=25mm.

A. 40mm
B. 50mm
C. 60mm
D. 70mm
Answer» B. 50mm
Discussion
3.

Calculate the diameter of pin from shear consideration with maximum shear stress allowed is 40NN/mm and an axial tensile force of 50kN is acting on the rod.

A. 39mm
B. 44mm
C. 49mm
D. 52mm
Answer» B. 44mm
Discussion
4.

Knuckle Joint can t be used to connect two intersecting rods.

A. Yes
B. No, it can t be used
C. It can be used with some modificatios
D. It is expensive and hence isn t used
Answer» C. It can be used with some modificatios
Discussion