SCREW THREAD MCQ PART – 2 FOR SEM 2

1) Which one of the following elements of an external screw thread cannot be measured directly with precision instruments? 

Major diameter

Pitch diameter

Width of crest

Minor diameter

2) Which one of the following screw thread elements is NOT checked with the thread ring gauge? 

Helix angle

Profile

Pitch

Pitch diameter

3) Which one of the following statements is correct with respect to the spiral fluted taps?

Used to tap oversized hole

Used to tap holes with slots

The tap tends to push the chips ahead of the tap

Threads formed by displacing the work material

4) The shape of the frame of thread snap gauge is in the form of ......... 

“C” type

Round

Square

‘Y’ type

5) The shape of the thread in the ‘Not Go’end of a thread snap gauge is 

Beveled

Truncated

Taper

Sharp

6) The handle of thread plug gauge is made from ebonite material for 

reducing the cost

reducing the weight

easy manufacturing

easy handling

7) Which one of the following thread groups are only for transmitting motion? 

Unified, Acme, Square threads

Square, Modified squàre, Acme, Buttress threads

ISO Metric, Modified Square, Acme threads

Whitworth, Acme, Square, Buttress threads

8) Buttress threads are most commonly used for 

Transmission of motion

Special bolts and units in structural work

The positioning of mechanical parts

Resisting force exerted in one direction only

9) While threading on the lathe, the carriage is moved by means of 

Hand wheel

Lead screw

Feed rod

Gear train on a rack

10) The depth of Indian Standard (BIS) thread is 

0.6495 P

0.6000 P

0.6403 P

0.6134 P

11) Threads are cut on a lathe with a single point tool by 

Moving the carriage by means of a rack.

Making a series of cuts in the same cut

Setting the correct speed

Setting on the cut for the full depth of the thread.

12) Which one of the following thread forms are mostly found on the threaded shaft of lifting equipment for carrying loads? 

Sawtooth thread

‘V’ thread

Knuckle thread

Square thread

13) In a threaded assembly, the contact between the male and female threads takes place on the 

Pitches

Crests

Roots

Flanks