Machine Tools Multiple Choice Questions on “Column and Knee Type Milling Machine”.
1. In horizontal type universal column and knee type of milling machine, the table is placed on the knee-casting which in turn is mounted on the _____ slides of the main column.
a) horizontal
b) vertical
c) 45 degree inclined to both plans
d) none of the mentioned
Answer: b
Clarification: As per the construction of this machine. This is true for horizontal type machine. In plain and vertical type machine arrangement may be different.
2. The knee is ______ adjustable on the column in horizontal column and knee type milling machine.
a) horizontally
b) vertically
c) can’t say anything
d) none of the mentioned
Answer: b
Clarification: The knee is vertically adjustable on the column in horizontal machine so that table can move in vertical direction.
3. In this machine, the table can be moved ______
a) only up
b) only down
c) both up and down
d) none of the mentioned
Answer: c
Clarification: The table can be moved up and down to accommodate work of various heights.
4. In this horizontal column and knee type machine, cutter rotates about _____ axis.
a) horizontal
b) vertical
c) 45 degree inclined to both plans
d) none of the mentioned
Answer: a
Clarification: In this machine, cutter rotates about horizontal axis that’s the reason why it is known as horizontal column and knee type machine.
5. The column and knee type milling machines are classified according to_______
a) various methods of supplying power to table
b) different movements of table
c) different axis of rotation of spindle
d) all of the mentioned
Answer: d
Clarification: As per the classification of this machine, these are the aspects in which machine can be classified. These machines are mostly used in workshop.
6. In a universal milling machine, table of the machine may be swiveled about a vertical axis, which helps in _____ milling.
a) helical
b) cam
c) both helical and cam
d) none of the mentioned
Answer: c
Clarification: It helps in helical milling, cam milling and several other milling. This universal milling is also suitable drilling and tapping.
7. Which of following part of these machines is swivel base?
a) top
b) bottom
c) middle
d) none of the mentioned
Answer: c
Clarification: As per the construction of this machine, bottom part is swivel base on which stands the column.
8. Which part of this machine has transverse motion?
a) top
b) bottom
c) middle
d) none of the mentioned
Answer: b
Clarification: As per the construction of this machine,bottom parts has traverse motion. Bottom part can be moved toward or away from the column.
9. Which part of this machine has longitudinal motion?
a) top
b) bottom
c) middle
d) none of the mentioned
Answer: a
Clarification: The top part of this machine has longitudinal motion in the guideways machined in the swivel base.
10. Guideways are machined on the _____ of the knee.
a) top
b) middle
c) bottom
d) none of mentioned
Answer: a
Clarification: Guide ways are machined on the top of the knee. Guideways means a track or path along with something moves.
11. Which of the following part of machine is a cross slide?
a) top
b) middle
c) bottom
d) none of mentioned
Answer: c
Clarification: Bottom part of machine is a cross slide. This part can move towards or away from the column.
12. The top part of this machine is mounted on the swivel base.
a) true
b) false
Answer: a
Clarification: The top part of the machine means actual table and this table is located on the swivel base.
13. The cutter is mounted on the arbor.
a) true
b) false
Answer: a
Clarification: The cutter is mounted on the arbor with the purpose of fitting it into the spindle of the mechanism.
14. The knee is capable of being moved up and down over the guideways formed at the _____ of the column.
a) front
b) back
c) can’t say anything
d) none of the mentioned
Answer: a
Clarification: The knee is capable of being moved up and down over the guideways formed at the front of the column.This motion helps in accommodating jobs of varying heights and also giving depth of cut.
15. The machine consists of a light base on which stands the column.
a) true
b) false
Answer: b
Clarification: The machine consists of a rigid base on which stands the column. The column houses the drive motor and speed mechanism in addition to providing support for spindle and spindle bearings.