ലിബി
7
Correct Answer:- Option-D
Question91:-The connection between the lead screw and carriage is made by
A:Slotted nut
B:-Changing gears
C-Castile nut
D-Split nut
Correct Answer:- Option-D
Question92:-The micrometers dial on the cross slide hand wheel, with the accuracy of
കടന്ന
B:-0.05 mm
‏می‎ mm
0.0.02 mm
Correct Answer: Option ®
Question93:-In lathe, which gear mechanism is used for changing the direction of rotation of the lead screw and feed shaft ?
‏وم هتعنم‎ gear unit
B:-Quick change gear box
CeApron mechanism
D-Tumbler gear

Correct Answer: Option-D

Question94::Which statement is/are correct about compound rest method 7
1: Both hand feed and power feed can be given

ii. Steep tapers can be produced

il, Threads on the taper portion can not be produced

iv. Both internal and extemal tapers can be produced

‘AcOnly i and il
B:-Only 1 and i
C-Only ii and iv
D-Only ii and iv
Correct Answer: Option-C
Question95::Which center is used to support the end of the job where no countersink hole is permitted 7
‘Acinsert type center
B:-Half center
C:Female center

Tipped center

Correct Answer: Option-C
Question96::What is the formula used to find taper angle by tail stock offset method 7

(0-02

A:Setover
രക

ടല
(0-4॥2५

ട്‌
D:-Setover ൭0

Correct Answer: 00६०५
‘Question97::Which one of the following standard taper is provided in the tailstock barrel ?

‘Ac Metric taper
B:-Morse taper

ന്നോ taper

Brown and Sharpe taper
Correct Answer: Option ®

Question98:-Which statement is/are correct about four jaw chuck 7
1. Separate internal and external jaws are available

ii, Each jaws has square thread provided

li, There is no loss of accuracy as the chuck gets worn out

iv. Jaws move upward or downward, depending up on the rotation of crown wheel