Metalwork - Exam Papers - HL - Paper - 1994
1. Answer Question 1, Sections A and B and three
2. All answers must be written in ink on the answer book supplied.
Diagrams should be drawn in pencil.
3. Squared paper is supplied for diagrams as required.
4. Please label and number carefully each question attempted.
SECTION A - 20 MARKS
Answer any five questions
|(a) Describe briefly, the contribution made
to technology by one of the following :- Isaac Singer,
Rudolf Diesel, Harry Ferguson.
(b) Identify the diagram opposite.
(c) Name two of the parts shown.
(d) From what material is part A made ?
(e) Explain the function of the stud and
nut at D.
(f) Define two of the following:- Ductility,
Elasticity. Toughness. Tensile Strength, Malleability
(g) Identify any three electronic components
represented opposite. State the function of one of
SECTION B - 20 MARKS
Answer any five questions
|The illustration shows a portable electric drilling
(a) Name and sketch the item of equipment
required for part A to function properly.
(b) Identify two of the following parts:
C, D, E, F and G. State the purpose of one of these
(c) The parts at B are case-hardened. Name
the parts and describe what is meant by case-hardening.
(d) Give two reasons why some drills have
a range of speeds.
(e) Part C is made from a thermoplastic
material. Suggest a method of manufacture for this
(f) List two possible causes of accidents
associated with portable electric drills. State
how such accidents can be prevented.
|WARNING : Don't forget to return
this section with your answer book (if question
2 is attempted) or otherwise marks will be
The Aluminium ladder shown is to be stored
by hanging it on the wall in the horizontal
(a) Design a pair of steel brackets
which can be mourned on the wall and used
to support the ladder. Your design should
- A means of fixing the brackets to the
- A means of preventing the ladder from
slipping off the brackets.
Rough sketches to illustrate your ideas
should be drawn in your answer book. Select
a final solution and make a working drawing
of one bracket (Elevation and end view )
on the squared paper.
(b) List the tools and equipment required
to fix the brackets to the wall.
(c) Describe a method of treating
the brackets against corrosion.
(a) Name and describe four of the
stages in the production of the Plumb-bob
(b) List three safety precautions
which should be observed when using the
centre lathe. State why the precautions
(c) Name the tools required to cut
the screwthreads as shown in stage 5.
(d) If the cutting speed of the
material in the Plumb-bob is 40 m / min,
calculate the approximate rev / min which
should be used to turn the smaller Ø15
(e) What angle should the topslide
or compound slide be set at for the operation
at stage 3 ?
- Name the furnace shown.
- What metal is produced by this furnace?
- What material is used in the charge?
- Explain the function of parts A, B
- A list of metals are shown on the
right. Examine the list and select the metals
required to make two of the following alloys:
- Describe one use for each of the alloys you choose.
The elevation and end view of a model air
compressor is shown. Answer five of the
(i) Name and describe three of
the parts listed A, B, C, D and E.
(ii) What is the maximum distance
moved by part A in half a revolution ie.
when A moves either from top to bottom or
from bottom to top.
(iii) Give one example of a use
for an air compressor.
(iv) Show clearly, by means of
a sketch, how parts A and C are held together.
(v) Name the tools used to cut
the screwthreads on part E.
(vi) What is meant by the pitch
of a screwthread ?
(a) Draw a large sketch of an electric
Soldering Iron. Indicate the following on
- The soldering iron bit, and name
the material from which it is made?
- The position of the heating element.
- How the cable is wired to a 13
(b) Describe how parts A and B,
shown in the sketch, may be soft soldered
(c) Explain the terms:
- Passive flux.
(d) List three differences between
soft soldering and brazing.
The illustrations show a Personal Computer
(PC), and some Input and Output devices.
Answer five of the following :-
(a) Name three of the input devices.
(b) Name two output devices.
(c) Describe, with the aid of a sketch,
the type of work that either device A or device
B is capable of doing.
(d) What is the purpose of slot H
(e) Explain what any three of the
following abbreviations mean :-
(f) Which of the devices shown above
could be used in