This set of Machine Tools Multiple Choice Questions & Answers (MCQs) focuses on “Operation on Drilling Machine”.
1. Which of the following operation, we can’t perform on drilling machine?
a) reaming
b) tapping
c) lapping
d) none of the mentioned
View Answer
Explanation: Although drilling is primarily intended for drill but now it becomes a versatile tool. It can perform various operations including reaming, tapping, lapping and so on.
2. Tapping attachment is included in_______ method of tool holding devices.
a) by chucks
b) by a sleeve
c) by directly fitting in the spindle
d) none of the mentioned
View Answer
Explanation: It is included in special attachment method. In tapping, one end is always thinner than other end.
3. Floating holder is included in______ method of tool holding devices.
a) by directly fitting in the spindle
b) by special attachments
c) by a socket
d) none of the mentioned
View Answer
Explanation: It is included in special attachment. Floating holder is a type of holder that permits certain amount freedom to enable the tool with a purpose of maintaining a proper path relative to the work.
4. Which of the following method is not used for holding tool?
a) by a sleeve
b) by chucks
c) by a socket
d) none of the mentioned
View Answer
Explanation: These all methods are used for holding tools. There are various types of chucks 2 jaw chuck, three jaw chuck etc. Sleeve and socket are also used for this purpose.
5. We can’t perform grinding operation in a drilling machine.
a) true
b) false
View Answer
Explanation: This is false. Now, drill machine becomes a versatile tool. We can perform grinding operation.
6. Which of the following device is not used for holding the work in a drilling machine?
a) step block
b) drill jigs
c) both step block and drill jigs
d) none of the mentioned
View Answer
Explanation: Both are used for holding the work in drilling machine.
7. In drilling operation, work should be held by hand.
a) true
b) false
View Answer
Explanation: Work shouldn’t be held by hand as it may causes injuries to the operator.
8. The drilling machine is the second most important machine tool in a workshop.
a) true
b) false
View Answer
Explanation: Lathe is the most important machine tool followed ny drill and shaper.
9. The drilling machine was primarily designed to originate a _____
a) flat surface
b) cylindrical surface
c) taper surface
d) none of the mentioned
View Answer
Explanation: It was primarily designed to originate a hole but now it can perform variety of operations.
10. For drilling operation, the drill rotates with_____ pressure if job is held on earth.
a) upward
b) downward
c) 45 degree inclined to both planes
d) none of the mentioned
View Answer
Explanation: It rotates with downward pressure if the job is below the machine on the earth.
Sanfoundry Global Education & Learning Series – Machine Tools and Machining.
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