This set of Machine Tools Multiple Choice Questions & Answers (MCQs) focuses on “Milling Indexing”.
1. The indexing is the operation of dividing the periphery of a piece of work into any number of equal parts.
a) true
b) false
View Answer
Explanation: It is the definition of indexing.It is generally used for milling machine but it has also some application in boring,grinders, drill presses etc.
2. The indexing operation can also be adapted for producing ______ headed bolts.
a) hexagonal
b) square
c) both hexagonal and square
d) none of the mentioned
View Answer
Explanation: The indexing operation can also be adapted for producing hexagonal and square headed bolts. It is versatility of this method and that’s the reason why it is largely used.
3. In cutting spur gear, equal spacing of teeth on the gear blank can’t be performed by indexing.
a) true
b) false
View Answer
Explanation:In cutting spur gear, equal spacing of teeth on the gear blank can be performed by indexing.
4. Indexing is accomplished by using a special attachment known as__________
a) dividing head
b) index head
c) both dividing head and index head
d) none of the mentioned
View Answer
Explanation: Indexing head is also known as dividing head and this driving head is also known as indexing head.
5. The dividing heads are of ____ types.
a) 1
b) 2
c) 3
d) none of the mentioned
View Answer
Explanation: The dividing heads are of 3 types: universal driving head, optical driving head and plain driving head.
6. Which of the following is not the type of dividing heads?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned
View Answer
Explanation: All plain driving head, universal driving head and optical driving head are the types of dividing heads.
7. Which of the following dividing head is also known as simple dividing head?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned
View Answer
Explanation: Plain dividing head is also known as simple dividing head. It performs simple not too complicated tasks.
8. Which of the following is the most common type of indexing arrangement used in workshops?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned
View Answer
Explanation: As per the application of universal dividing head. It is very versatile and can perform various operation that’s why it is used in industry.
9. Universal index head can be used to execute all form of indexing.
a) true
b) false
View Answer
Explanation: This is the advantage of this head. Due to its versatility it can perform the tasks of other indexing methods and can execute all form of indexing.
10. Which of the following is the important part of universal head?
a) worm
b) index plate
c) sector arm
d) all of the mentioned
View Answer
Explanation: Worm, sector arm, index plate, sector arch,sector ram, crank, taper hole, spindle etc. are the main parts of universal head .
11. Which of the following has single start threads in universal dividing head?
a) worm
b) index plate
c) sector arm
d) none of the mentioned
View Answer
Explanation: As per the construction of universal dividing head, worm has single start threads. It has to allow the spindle to pass through it during the rotation of spindle.
12. In universal dividing head, the worm wheel has 40 teeth.
a) true
b) false
View Answer
Explanation: As per the construction of worm wheel, worm wheel has 40 teeth for the better function. Taper hole spindle passes through it.
13. The crank is used to rotate the spindle of the dividing head in universal dividing head.
a) true
b) false
View Answer
Explanation: Crank is used for this purpose. It is the main function of the head. Spindle is passed through the worm and worm wheel arrangement.
14. Rotation of spindle is done through _______ arrangement in universal dividing head.
a) worm
b) worm wheel
c) both worm and worm wheel
d) none of the mentioned
View Answer
Explanation: Worm and worm wheel arrangement are used for the rotation of spindle but the rotation of spindle starts because of crank arrangement.
15. By linking the worm and worm gear driving mechanism of the attachment with the leadscrew of the table, continuous ______ motion can be imparted to the workpiece.
a) rotary
b) transverse
c) reciprocating
d) none of the mentioned
View Answer
Explanation: As per working of universal dividing head, continuous rotary motion can be imparted to workpiece for the purpose of helical milling.
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