This set of Machine Tools Multiple Choice Questions & Answers (MCQs) focuses on “Lathe : Steady Rests and Its Types-2”.
1. Which portion of the bed is hinged at the back in fixed steady rest?
a) top
b) middle
c) bottom
d) none of the mentioned
View Answer
Explanation: The top portion of the bed is hinged at the back to permit the top to be lifted or assembled to the bottom half.
2. In fixed steady rest, a fixed steady can be clamped_____
a) parallel to lathe bed
b) perpendicular to lathe bed
c) at any desired position on the lathe bed
d) none of the mentioned
View Answer
Explanation: A fixed steady can be clamped at any desired position on the lathe bed. This is done with the help of base clamping screw.
3. In fixed steady rests, these rests are fixed at some intermediate points to prevent bending of work pieces due to_____
a) own weight
b) chattering forces
c) own weight and chattering forces both
d) none of the mentioned
View Answer
Explanation: These rests are fixed at some intermediate points to prevent bending of work pieces due to their own weight. This rests help in achieving greater accuracy in machining and permit heavier cuts.
4. Which of the following is not true for fixed steady rest?
a) the three pads or jaws are adjusted on a trued cylindrical face of the work piece
b) a fixed steady can be clamped by the base clamping screw
c) pads are also known as jaws
d) none of the mentioned
View Answer
Explanation: The all above mentioned are true. Jaws can also be termed as pads and also a fixed steady rest can be clamped by base clamping screws.
5. Which of the following is also known as the travelling steady?
a) fixed steady rest
b) follower steady rest
c) fixed steady rest and follower steady rest both
d) none of the mentioned
View Answer
Explanation: Follower steady rest is also termed as travelling steady. Adjustable screw, bearing pads, frame, lock nut etc. are the main parts of this machine.
6. Follower steady rest consists of_____ like frame.
a) D
b) C
c) S
d) None of the mentioned
View Answer
Explanation: Follower steady rest consists of ‘C’ like frame. These type of rest is used in finish turning operations or where the entire length of the workpiece is to be turned at a stretch, without disturbing the setting.
7. How many adjustable pads does follower steady rest has?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: Follower steady rest has 2 adjustable pads. These pads are helpful for supporting the work.
8. In follower steady rest, there is a pad which is located_____ the cutting tool.
a) in front of
b) opposite to
c) besides
d) none of the mentioned
View Answer
Explanation: The pad is located opposite to the cutting tool and the other pad bears the top of the workpiece to prevent from spinning up due to the thrust of the load.
9. In follower steady rest, the work piece is machined slightly wider
than the jaws.
a) true
b) false
View Answer
Explanation: The piece of work is machined slightly wider than jaws to provide bearing surface. For this, the machine surface is brought under the jaws and the tool is set slightly in advanced position than the jaws.
10. Which type feed is provided in follower steady rest?
a) longitudinal
b) cross
c) both cross and longitudinal
d) none of the mentioned
View Answer
Explanation: The tool is fed longitudinally in follower steady rest and the jaws follow the tool giving support where cutting actually take place..
11. Which of the following is not true for steady follower rest?
a) it is used in finish turning operation
b) it is used where the entire length of the work piece is to be turned at a stretch, without disturbing the setting
c) the support is discontinuous to the entire length of cutting
d) none of the mentioned
View Answer
Explanation: All above sentences are true except the sentence which says that support is discontinuous to the entire length of cutting.The support is continuous to the entire length of cutting.
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