1) Which one of the following is not a part of the center lathe?
Saddle
Feed rod
Arbor
Lead screw
2) In a gap bed lathe, the gap is provided
Just below the nose of the headstock spindle
Just below the spindle of the tailstock
In the middle of the bed
Anywhere in the bed
3) The headstock of a lathe is situated at the
The right-hand end of the lathe bed
The left-hand end of the lathe bed
Middle of the lathe bed
Bottom of the lathe bed
4) The horizontal feed, crossfeed, and screw cutting movement in a lathe is controlled by
Headstock
Tailstock
Cross-slide
Apron
5) A face plate is held at
Headstock spindle
Tailstock
Tool post
Bed
6) Tumbler gear quadrant is used for
Increasing the speed of the spindle
Decreasing the speed of the spindle
Changing the direction of rotation of the lead screw
Changing the direction of the spindle
7) The sliding surfaces of the lathe bed are
Flame hardened
Case hardened
Normalized
Tempered
8) While drilling in the lathe, the drill is held in the
Headstock
Tailstock
Compound rest
Bed
9) The back-gear mechanism is provided in cone pulley headstock to
Reduce the speed of the spindle
Increase the speed of the spindle
Reverse the speed of the spindle
Transmit power from spindle gear to stud gear
10) Which among the following parts of a lathe should have high compressive strength?
Bed
Main spindle
Lead screw
Sliding gears in headstock
11) Lathe bed is made of
Mild steel
Cast iron
High carbon steel
High alloy steel
12) A tumbler gear unit consists of
One gear
Two gears
Three gears
Four gears
13) To prevent lathe bed guideways from damaging by chuck while mounting
Take the help of the supervisor
Support it with the screw jack
Lift it with a hand crane
Place a wooden piece on the guideways
14) Which one of the following on a lathe is used to give depth of cut?
Compound slide
Top slide
By adjusting the tool
Cross Slide
15) The lathe bed has
One set of ‘V’ guideways and flatways
Two sets of ‘V’ guideways and flatways
Three sets of ‘V’ guideways and flatways
Four sets of ‘V’ guideways and flatways
16) The cross-slide in a lathe moves
Parallel to the axis of rotation
At any angle to the axis of rotation
Perpendicular to the axis of rotation
None of the above.
17) The carriage in a lathe moves
Parallel to the axis of rotation
At any angle to the axis of rotation
Perpendicular to the axis of rotation
None of the above.
18) The compound slide swivel base is set at 45° to the center line of the lathe. The degree of the reading at the cross slide index will be
135°
90°
45°
30°
19) The carriage of a lathe travels along which axis?
“B” axis
“Z” axis
“Y” axis
“X” axis
20) Which one of the following statements is true with respect to the half nut?
It is a detachable part of the saddle
It is an integral part of the saddle
It is an integral part of the apron
It is a detachable part of the apron
21) What is the function of the drop worm provided in the apron of the center lathe?
Engages/disengages the power feed
Changes the direction of rotation of the workpiece
Changes the feed direction
Engages/disengages the lead screw
22) The tailstock barrel has an internal taper. Which one of the following standard tapers is provided in the barrel bore?
Metric taper
Morse taper
Jarno taper
Brown and Sharpe taper
23) One of the parts of a center lathe is tumbler gear unit. It is provided to
Change the direction of feed
Transmit motion from feed shaft to the carriage
Change the direction of rotation of the work
Alter the spindle speed
24) The capacity of a lathe is expressed as
Horsepower and chuck diameter
Swing and distance between centers
Bed length and spindle speed
Tool post size and lathe travel
25) The basic turning lathe is
Turret lathe
Automatic Lathe
Engine lathe
Swiss lathe
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