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WorksheetsMPR-UNIT-01
Total questions: 43
Worksheet time: 23mins
Which machine tool is known as the mother machine tool?
a) drill
b) milling
c) lathe
d) none of mentioned
a) drill
b) milling
c) lathe
d) none of mentioned
c
Lathe is primarily used for producing ____surfaces.
a) flat
b) curve
c) taper
d) none of the mentioned
d
What is the necessary condition for turning?
a) material of work piece should be harder than the cutting tool
b) cutting tool should be harder than the material of work piece
c) hardness of the cutting tool and material of of piece should be same
d) none of the mentioned
b
Traversing of tool parallel to the axis of job is termed as_____
a) cross feed
b) longitudinal feed
c) both cross feed and traversing feed
d) none of the mentioned
b
In taper operation, which type of surface is produced?
a) flat
b) curve
c) circular
d) none of the mentioned
d
Which type of lathe is also known as centre lathe?
a) engine lathe
b) bench lathe
c) room lathe
d) capstan lathe
a
Which of the following is the base of the lathe machine?
a) bed
b) tailstock
c) headstock
d) none of the mentioned
Which of the following is fitted on the bed?
a) headstock
b) tailstock
c) headstock and tailstock both
d) none of the mentioned
c
Which of the following is not the part of the bed?
a) vee slide
b) tailstock
c) carriage
d) none of the mentioned
d
Which of the following is not true regarding tailstock?
a) tailstock is also known as loose headstock
b) it is a fixed unit on the bed ways
c) it provides support to the other end of the work when it is being machined
d) none of the mentioned
b
For performing which kind of operations, it ( tailstock ) holds a tool?
a) drilling
b) reaming
c) tapping
d) all of the mentioned
a) drilling
b) reaming
c) tapping
d) all of the mentioned
d
The body of the tailstock can be adjusted by clamping with the help of_____
a) bolts
b) plates
c) bolts and plates both
d) none of the mentioned
c
Which type of rotation of the hand wheel causes the spindle
to be drawn inward?
a) clockwise
b) anticlockwise
c) either anticlockwise or clockwise
d) none of the mentioned
a) clockwise
b) anticlockwise
c) either anticlockwise or clockwise
d) none of the mentioned
b
Head stock is a flexible unit.
a) true
b) false
b
Which of the following is supported by the head stock?
a) spindle
b) spindle bearing
c) speed change mechanism
d) all of the mentioned
d
Spindle holds dead centers.
a) true
b) false
b
Head stock usually stands on the left side of the lathe.
a) true
b) false
a
How many main type of centres are there in lathe (most commonly)?
a) 1
b) 2
c) 3
d) 4
b
Which of the following is not the type of centre in lathe?
a) live centre
b) neutral centre
c) dead centre
d) none of the mentioned
b
Which type of centre is used while facing the job without disturbing the setting?
a) ball centre
b) pipe centre
c) half centre
d) revolving centre
c
Three jaw chuck is also known as _____
a) universal chuck
b) self-centering chuck
c) universal or self-centering chuck
d) none of the mentioned
c
A chuck is attached to_____
a) lathe spindle
b) lathe apron
c) lathe tool post
d) none of the mentioned
a
Four jaw chuck is dependent chuck.
a) true
b) false
b
For lathe operations, work piece can be hold _____
a) between centres
b) on mandrel
c) either between centres or on mandrel
d) none of the mentioned
c
Drilling is performed by holding the work by a chuck.
a) true
b) false
a
Knurling can be performed by special attachments.
a) true
b) false
b
A taper may be defined as a uniform gradual_____ along the length of the job.
a) increase
b) decrease
c) increase or decrease
d) none of the mentioned
c
The taper is measured in terms of radius along the length of the job.
a) true
b) false
b
In a lathe, taper turning means to produce a_____ surface by gradually decreasing the value of diameter from a cylindrical work piece.
a) conical surface
b) flat surface
c) both conical and flat surface
d) none of the mentioned
a
Amount of taper in a work piece is termed as conicity.
a) true
b) false
a
Which of the following is the right formula for taper?
a) K= (D-d) / L
b) K= L / (D-d)
c) K= D/ L
d) none of the mentioned
a
Find the value of K. D= 90 mm, d=80 mm, L=1cm.
a) 1
b) 10
c) 100
d) none of the mentioned
a
The mentioned figure indicates_____
a) knurling
b) parting off
c) taper turning
d) none of the mentioned
c
______ is the speed at which the metal is removed by the tool from the work piece.
a) feed
b) cutting speed
c) depth of cut
d) none of the mentioned
b
Which of the following represent the unit of cutting speed?
a) meter*minute
b) meter*meter*minute
c) meter / minute
d) none of the mentioned
c
_____ is the distance the tool advances for each revolution of the work.
a) feed
b) depth of cut
c) metal removal rate
d) none of the mentioned
a
Which of the following is the unit of the feed?
a) mm / minute
b) mm / revolution
c) mm * minute
d) none of the mentioned
b
The depth of cut is the_____ distance measured from the machined surface to the surface of the work piece, which is uncut.
a) parallel
b) perpendicular
c) at 45 degree
d) none of the mentioned
b
Which of the following represents the formula for the depth of cut? d1=diameter of work surface before machining and d2=diameter of the machined surface.
a) d1+d2
b) d1-d2
c) (d1+d2)/2
d) (d1-d2)/2
d
Determine the rpm(n) of the shaft. diameter(d)=25 mm, cutting speed(cs)=50 m/min.
a) 636.9
b) 202.83
c) 10.615
d) none of the mentioned
a
If the diameter of the work surface before machining(d1) is 100 mm and diameter of the machined surface(d2) is 50 mm.
a) 50
b) 25
c) 15
d) none of the mentioned
b
The larger diameter of shaft is 125 mm and smaller diameter of the shaft is 95 mm. Find the taper. Assume that length of the job and taper is same.
a) 30
b) 15
c) 60
d) none of the mentioned
b
In drilling operation, work should be held by hand.
a) true
b) false
a) true
b) false
b
