GATE Prev Year : Machine Design Test-8

Attempt now to get your rank among 520 students!

Question 1

A wire rope is designated as 6 × 19 standard hoisting. The numbers 6 × 9 represent

• A diameter in millimeter × length in meter
• B diameter in centimeter × length in meter
• C number of strands × number of wires in each strand
• D number of wires in each strand × number of strands

Question 2

Which among the following is the correct value of spring index used in many design application?

• A1 to 4
• B10 to 15
• C8 to 10
• D2 to 7

Question 3

The coupling used to connect two shafts with large angular misalignment is____.

• AA Flange coupling
• BAn Oldham’s coupling
• CA Flexible bush coupling
• DA Hooke’s joint

Question 4

A hydrodynamic journal bearing is subject to 2000 N load at a rotational speed of 2000 rpm. Both bearing bore diameter and length are 40 mm. If radial clearance is and bearing is lubricated with an oil having viscosity 0.03 Pa.s, the Sommerfeld number of the bearing is ______

• A0.8
• B1.0
• C0.2
• D2.0

Question 5

A steel bar of 10 × 50 mm is cantilevered with two M 12 bolts (P and Q) to support a static load of 4 kN as shown in the figure.

The primary and secondary shear loads on bolt P, respectively, are

• A2 kN, 20 kN
• B20 kN, 2 kN
• C20 kN, 0 kN
• D0 kN, 20 kN

Question 6

The resultant shear stress on bolt P is closest to

• A132 MPa
• B159 MPa
• C178 MPa
• D195 MPa

• 520 attempts
• 1 upvote
• 24 comments