Which of the following does not form the important part of the screw jack?

← Prev Question Next Question →

Please log in or register to answer this question.

Related questions

0 votes

0 answers

How many types of jacks are there which can be used in a screw jack?

asked 3 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

What is the output from differential screws when pitch of the two screws is 12mm and 8mm? Also the nut is rotated by applying a force of 120N at a radius of 300mm and the two screws remain stationary. The torque of raising and lowering for the two screws is 5k N-mm and 2.5k N-mm where k is the effective axial weight on the screw.

asked 6 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Efficiency of conventional power screw is greater than the efficiency of recirculating ball screw.

asked 6 days ago in Machine Design by Carter (86.7k points)

+1 vote

1 answer

A compound screw consist of two screws in parallel such that the resultant motion is the summation of the individual motion of screws.

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

What is the efficiency of differential screws when pitch of the two screws is 12mm and 8mm? The nut is rotated by applying a force of 120N at a radius of 300mm and the two screws remain stationary. The torque of raising and lowering for the two screws is 5k N-mm and 2.5k N-mm where k is the effective axial weight on the screw.

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

In a differential screw, two screws are connected in series such that the resultant motion is the summation of the motion of the two screws.

asked Jan 21 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

The transverse shear stress at the root of the threads in the nut can be given by?(symbols have their usual meaning, z=number of threads in nut)

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².

asked Jan 23 in Machine Design by Carter (86.7k points)

0 votes

0 answers

Find the torque required to raise the load of 15kN and mean diameter of triple threaded screw being 46mm. Also given pitch=8mm and coefficient of friction is 0.15.

asked 3 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

If bending stress in a screw is of magnitude 95N/mm² and torsional shear stress of magnitude 15N/mm², then what is the principal shear stress?

asked 4 days ago in Machine Design by Carter (86.7k points)

+1 vote

1 answer

For a double threaded screw, what will be the tangent of helix angle if nominal diameter and pitch are 100mm and 12mm respectively?

asked Jan 23 in Machine Design by Carter (86.7k points)

0 votes

0 answers

Which of the following help in accomplishing the locking?

asked 4 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Which of the following statements are true about eccentrically loaded circular base?

asked 4 days ago in Machine Design by Carter (86.7k points)

+1 vote

1 answer

Which of the following are good for parts that are seldom dismantled.

asked Jan 23 in Machine Design by Carter (86.7k points)

0 votes

0 answers

Which bolt is under maximum shear stress?

asked 4 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Which bolt is under maximum stress if dowel pins are used to relieve cap screws from shear stress?

asked 6 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Which bolt is used a criterion for designing?

asked 6 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

If for a trapezoidal thread, angle of thread is 15’ then what will be the replacement of the coefficient of friction which is 0.15.

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

Find the radius of Mohr circle which can be made from the shear stress and tensile stress acting on bolts.(Consider bolt under max stress and area of bolt is A)

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

Which bolt can be used as criteria for designing?

asked Jan 23 in Machine Design by Carter (86.7k points)

+1 vote

1 answer

Find the ratio of the effective tensile load to which the two bolts are subjected.

asked Jan 23 in Machine Design by Carter (86.7k points)

0 votes

0 answers

A machine vice whose length of the handle is 150mm and the coefficient of friction for thread and collar are 0.15 and 0.17 respectively has a force applied at handle of 125N. Also the outer and inner diameters of collar are 55mm and 45mm respectively. Find the overall efficiency if nominal diameter=22mm and pitch=5mm.

asked 3 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Find the effective tensile force acting in the two bolts.

asked 3 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Determine the size of bolts using maximum shear stress theory.

asked 3 days ago in Machine Design by Carter (86.7k points)

0 votes

0 answers

Find the principal shear stress in the top bolts in terms of area A?

asked 3 days ago in Machine Design by Carter (86.7k points)

...