This set of Machine Tools Multiple Choice Questions & Answers (MCQs) focuses on “Headstock”.
1. Headstock is a flexible unit.
a) true
b) false
View Answer
Explanation: This is false. Headstock is a fixed unit. It provides mechanical means of rotating the work at multiple speeds.
2. Which of the following is supported by the headstock?
a) spindle
b) spindle bearing
c) speed change mechanism
d) all of the mentioned
View Answer
Explanation: These all are supported by the headstock.
3. The spindle is solid.
a) true
b) false
View Answer
Explanation: This is false. It is not solid. The spindle is hollow in headstock and it is supported by the headstock.
4. Spindle holds dead centers.
a) true
b) false
View Answer
Explanation: This is false. Spindle holds live centers.
5. Which of the following method is used to vary the speed of a lathe spindle?
a) gear out
b) gear in
c) both gear out and gear in
d) none of the mentioned
View Answer
Explanation: These both methods are used to vary the speed of the lathe. Apart from these two, variable speed motor is also used to vary the speed of a lathe spindle.
6. Which type of end does tapered bar has?
a) pointed
b) projected
c) pointed or projected
d) none of the mentioned
View Answer
Explanation: Taper bar may has pointed or projected end depending upon the task. Tapered bar is a bar which has different diameters at both ends.
7. Headstock usually stands on the left side of the lathe.
a) true
b) false
View Answer
Explanation: Headstock usually stands on the left side of the lathe, while tailstock stands right side of the lathe.
8. Which of the following lathe part serves as a housing for the
back gear, driving pulley etc?
a) tailstock
b) headstock
c) bed
d) none of the mentioned
View Answer
Explanation: Headstock performs this job. This headstock should be robust as so many cutting forces are involved in it.
9. Spindle is fitted with_____
a) chucks
b) faceplates
c) chucks or faceplates
d) none of the mentioned
View Answer
Explanation: Spindle is fitted with chucks ( 3 jaw, 4 jaw etc. ) and faceplates. A face plate consists of a circular disc bored out and a chuck is device of lathe attached to the spindle by means of bolts with back late screwed on to the spindle nose.
10. The spindle was directly driven by_____ in later machine.
a) flat belt pulley
b) gear box
c) flat belt pulley and gear box both
d) none of the mentioned
View Answer
Explanation: Spindle was driven by gear box ( driven by electric motor) in later machine. It is a disc or plate type structure connected to the shaft.
11. The spindle was directly driven by_____ in older machine.
a) flat belt pulley
b) gear box
c) flat belt pulley and gear box both
d) none of the mentioned
View Answer
Explanation: The spindle was directly driven by flat belt pulley in older machine. Flat pulley generally made up of cast iron, steel, wood, plastic and paper and used with a belt drive is known as flat belt drive.
Sanfoundry Global Education & Learning Series – Machine Tools and Machining.
To practice all areas of Machine Tools and Machining, here is complete set of 1000+ Multiple Choice Questions and Answers.
If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]
- Practice Mechanical Engineering MCQs
- Apply for Mechanical Engineering Internship
- Check Machine Tools Books
- Check Mechanical Engineering Books
