Time Left - 15:00 mins

GATE 2019: Theory of Machine Quiz 2

Attempt now to get your rank among 1535 students!

Question 1

Given figure shows a quick return mechanism. The crank OA rotates clockwise uniformly. OA = 2 cm, OO’ = 4 cm. The ratio of time for forward motion to that for return motion is_________.

Question 2

Two links have angular velocity of 20 rad/s and 15 rad/s both in opposite directions. If the radius of the pin at O is 10mm, O is point where two links are connected, determine the rubbing velocity at the joint____?

Question 3

A slider-crank mechanism with crank radius 60 mm and connecting rod length 240 mm is shown in figure. The crank is rotating with a uniform angular speed of 10 rad/s, counter clockwise. For the given configuration, the speed (in m/s) of the slider is____

Question 4

The figure shows a slider moving inwards on a rod with a velocity of 5 m/s when its distance from point O is 1 m. At this instant, velocity of slider is increasing at the rate of 10 m/s2. Rod has an angular velocity of 5 rad/s counter clockwise. The angle which the resultant absolute acceleration of slider makes with the line OR is

Question 5

A Rigid link PQ of length 2 m rotates about the pinned end Q with a constant angular acceleration of 12 rad/s2. When the angular velocity of the link is 4 rad/s, the magnitude of the resultant acceleration (in m/s2) of the end P is _________.

Question 6

A rigid link PQ is 2 m long and oriented at Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-1_files\image038.png to the horizontal as shown in the figure. The magnitude and direction of velocityDescription: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-1_files\image039.png, and the direction of velocityDescription: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-1_files\image040.png, are given. The magnitude of Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-1_files\image041.png (in m/s) at this instant is

Description: D:\GradeStack Courses\GATE Tests (Sent by Ravi)\GATE-ME-2014-Set-1_files\image042.png
  • 1535 attempts
  • 0 upvotes
  • 20 comments
Mar 8ESE & GATE ME