Screw Threads ITI Machinist MCQ Mock Test - Set 02 - ObjectiveBooks

Screw Threads ITI Machinist MCQ Mock Test - Set 02

Practice Test: Question Set - 02

1. Buttress threads are most commonly used for:
    (A) Transmission of motion
    (B) Resisting force exerted in one direction only
    (C) Positioning of mechanical parts
    (D) Special bolts and nuts in structural work

2. What type of threads are suitable for small precision components and measuring gauges?
    (A) British Association threads
    (B) Whitworth Screw threads
    (C) Acme threads
    (D) Square threads

3. In a single-start thread:
    (A) Lead and pitch are equal
    (B) Lead is double the pitch
    (C) Pitch is double the lead
    (D) Lead is half the pitch

4. Which one of the following thread forms is used in a threaded assembly where the sliding force acts in one direction only?
    (A) Square thread
    (B) 'V' thread
    (C) Saw-tooth thread
    (D) Knuckle thread

5. Which one of the following thread forms on bolts and nuts is meant for general fastening purposes?
    (A) 'V' threads
    (B) Square threads
    (C) Knuckle threads
    (D) Acme threads

6. The handle of thread plug gauge is made from ebonite material for:
    (A) Reducing the cost
    (B) Reducing the weight
    (C) Easy manufacturing
    (D) Easy handling

7. The pitch of a 3-start is the lead divided by:
    (A) 1
    (B) 2
    (C) 3
    (D) 4

8. The pitch diameter of the external screw thread is checked by:
    (A) Screw pitch gauge
    (B) Thread ring gauge
    (C) Screw thread micrometer
    (D) Vernier caliper

9. Which one of the following threads is used on mechanical jack?
    (A) Acme
    (B) Square
    (C) Buttress
    (D) B.S.F.

10. While threading on a lathe, the carriage is moved by means of:
    (A) Lead screw
    (B) Hand wheel
    (C) Feed rod
    (D) Gear train on a rack

11. The angle of I.S. thread (V shaped) is:
    (A) 29°
    (B) 47.5°
    (C) 50°
    (D) 60°

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