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CSEC MET Practice Questions Set

The document contains practice questions and answers for CSEC Mechanical Engineering Technology, covering topics such as tools, workshop safety, measurement, drilling, threading, fastening, riveting, welding, and heat treatment. Key concepts include parts of tools, types of threads, cutting speeds, welding defects, and safety equipment. It serves as a study guide for students preparing for exams in mechanical engineering technology.

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34 views3 pages

CSEC MET Practice Questions Set

The document contains practice questions and answers for CSEC Mechanical Engineering Technology, covering topics such as tools, workshop safety, measurement, drilling, threading, fastening, riveting, welding, and heat treatment. Key concepts include parts of tools, types of threads, cutting speeds, welding defects, and safety equipment. It serves as a study guide for students preparing for exams in mechanical engineering technology.

Uploaded by

thewolf1160
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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CSEC Mechanical Engineering Technology – Practice Questions with

Answers

Section A: Tools and Workshop Practice


 Q: What are the main parts of a twist drill?

A: Shank, body, flute, point angle, cutting edge.

 Q: Give two uses of a centre lathe.

A: Turning cylindrical objects, cutting external threads.

 Q: State two types of files and where they are used.

A: Flat file – smoothing flat surfaces; Round file – enlarging curved holes.

 Q: List three workshop safety rules.

A: Wear PPE, do not leave tools on the floor, keep area clean and dry.

 Q: What is the function of a chuck key?

A: Used to tighten or loosen the chuck on a lathe or drill.

Section B: Measurement and Fitting


 Q: Sketch a micrometer and label any three parts.

A: Parts: Frame, spindle, anvil, thimble, ratchet stop.

 Q: Convert: 3 inches = ___ mm.

A: 3 × 25.4 = 76.2 mm

 Q: Define 'pitch' in screw threads.

A: Pitch is the distance from one thread to the next, measured parallel to the axis.

 Q: Name two types of thread and one use for each.

A: Metric thread – bolts; Acme thread – lead screws.

 Q: What is the difference between internal and external threading?

A: Internal threading is done inside a hole (e.g., tap); external threading is done on a rod
(e.g., die).
Section C: Drilling and Threading
 Q: A 10 mm drill is used with a cutting speed of 20 m/min. Calculate RPM.

A: RPM = (1000 × 20) / (π × 10) ≈ 636.6 RPM

 Q: Name two types of taps.

A: Taper tap and plug tap.

 Q: Outline four steps to cut external threads on a rod using a die.

A: 1. File the end of the rod


2. Clamp in vice
3. Apply cutting fluid
4. Align die, turn and back off regularly

 Q: What is the purpose of cutting fluid?

A: Reduces heat, prevents tool wear, improves finish.

Section D: Fastening and Riveting


 Q: Sketch a single riveted lap joint.

A: (Simple sketch with two plates overlapping and one row of rivets)

 Q: State three causes of poor riveting.

A: Improper alignment, incorrect rivet size, excessive force.

 Q: What tool is used to remove a rivet?

A: A drill and punch.

 Q: Define 'wire edge' in sheet metal.

A: A rolled edge of sheet metal reinforced with a wire.

Section E: Welding and Heat Treatment


 Q: List two types of welding defects and their causes.

A: Porosity – gas trapped in weld; Undercut – moving too fast.

 Q: What is annealing?

A: A heat treatment process to soften metal and relieve stress.

 Q: Name two types of flames in oxyacetylene welding.

A: Neutral flame, carburizing flame.


 Q: What PPE should be worn during arc welding?

A: Welding helmet, gloves, leather apron.

 Q: State one advantage of normalising over annealing.

A: Normalising gives a better grain structure and harder finish.

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