## Technical Drawing Examination Questions and Answers for SS3

**CLASS: SS3 SUBJECT: TECHNICAL DRAWING TIME: 2 ½HOURS**

**Instructions: **Answer “all” questions in Section A of paper one. Each question is followed by four options letters A-D. Choose the correct option for each question and shade the letter corresponding to the option you have chosen on your answer sheet.

PAPER I

SECTION A: MULTIPLE CHOICE

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Which of the following types of lines is used on construction line?

A. Thick line B. Thin line C. Dash line D. Wavy line

Which of the following is a good example of a safe working habit in a drawing studio A. Clustering of drawing tables B. Horse playing

C. Good spacing of drawing D. Clustering of instrument on the tables

The ratio of sectional view of a building drawn to a scale 1:50 expresses 1mm to ________ A. 0.05m B. 0.50m C. 5.00m D. 50.00m

What is the size of an A3 drawing sheet? A. 1189 x 841mm B. 594 x 420mm C. 420mm x 297mm D. 297 x 210mm

What length is indicated by arrow ST on the diagonal scale below?

A. 3.04 B. 3.24 C. 3.56 D. 3.64

Which of the following symbols below represents wall socket?

A. B. C. D.

Which of the following shows the view on plane below

A. B. C. D.

How many sides has a regular nonagon? A. 12 B.11 C.10 D.9

The part of a building immediately above a window frame is the

A. wall plate B. King post C. Lintel D. Wall

Which of the following types of line is suitable for cutting plane?

A.

B.

C.

D.

Which of the following instrument is used for drawing a smooth curve though points which do not lie on an arc of a circle? A. Pair of compasses B. Pair of divider C. Radius template D. French curve

The longer side of an A2 drawing sheet of paper is ____ A. 841mm

B. 594mm C. 420mm D. 297mm

The figure below shows a portion of a diagonal scale. What fraction of YX is the length J?

A. 9/16 B. 5/8 C. 11/16 D. 3/4

Which of the following lines is used for dimensioning?

A. B. C. D.

The title block on a drawing sheet is conventionally at the _____ A. top right-hand side B. Top left-side C. Bottom right-hand side D. Bottom left land side

A line is 50mm on a plan with a scale 1:200. The actual distance on the ground is ______ A. 9m B. 10m C. 12m D. 20m

In the semi circle shown below, the value of angle β is A. 280 B. 350 C. 450 D. 900

Which of the figures shown below is plane figure A. B. C. D.

Use the figure below to answer questions 19 and 20

If the tangent P and Q are produced to meet at a point, the figure form with the two radii is A. Pentagon B. Hexagon C. Quadrilateral D. Triangle

What is the value of angle ∝ A. 250 B. 350 C. 650 D. 750

Which of the triangle shown below is a right-angle? A. B. C. D.

Use the orthographic block shown below to answer questions 22 and 23

The block is drawn in A. 1st angle projection B. Auxiliary projection C. 3rd angle projection D.

Perspective projection—Which of the following shows the view at K?

A. B. C. D.

The front view of a cone truncated parallel to the base is a _____

A. Triangle B. Square C. trapezium D. Rectangle

The figure above shows an orthographic projection of a _____

A. Rectangular prism B. Square pyramid C. Rectangular box

D. Square prism

The figure below show the development of a A. cone B. Circle

C. Frustrum D. Pyramid

Which of the following drawing is inclined at 300 to the horizontal?

A. Isometric B. Oblique C. Perspective D. Orthographic

Use the isometric view of a block below to answer 28 and 29

The development of the block has how many rectangles? A. 4 B. 5

C. 6 D. 8

The front view of the block in the direction of arrow P is

A. B. C. D.

Which of the following is NOT a correct method of constructing a true length of line PQ?

A. B. C. D.

The development of a cuboid has A. Six rectangles B. Four rectangles C. Three Rectangles D. Two rectangles

210 B. 126 C. 84 D. 70

In the figure above JNOP is an enlargement of JKLM. If the area JKLM is 42, what is the area of JNOP?

If the cut surface produced by planes SS in the figure above is circular, the original shape is A. A cylinder B. A circle C. A sphere D. An elipse

In the figure above, the plan under the cutting plane TT is

A. B. C. D.

Which of the following tools is a practical application of intersection of lien and arcs? A. Chisel B. Screw driver C. Spanner D. Drill bit

Use the figure below to answer questions 36 and 37

How many faces has the solid? A. Four B. Five C. Six D. Seven

The solid is a A. triangular prism B. Triangular pyramid C. Square prism D Square pyramid

The solid shown above is a A. Pentagonal prism B. Hexagonal pyramid C. Heptagonal pyramid D. Octagonal prism

The eccentricity of an ellipse is A. 3/2 B. 3/4 C. 1 D. 4/2

The symbol for concrete is shown in

A. B. C. D.

Which of the following building terms is NOT related to staircase?

A. rising B. Landing C. Going D. Blinding

A drawing showing the layout of a building, dimensions, location of the walls and room is the A. Floor plan B. Sectional plan

C. Elevation D. End view

Use the circuit diagram shown above to answer question 43 and 44

The electric bell in the circuit is represented by A. R B. S C. P D. Q

The part labeled P, S and Q respectively are

Cell, bell and capacitor

Cell, capacitor and resistor

Cell, key and capacitor

Bell, key and lamp

Use the figure above to answer questions 45 and 46

Which of the following is NOT shown on the building plan? A. Beam B. Window c. Wall D. Door

The plan shows a A. Toilet B. Living room C. Bedroom D. Kitchen

The type of sectioning shown below is called

A. Part B. Full C. Removed D. Revolved

The figure below shows the thread profit of A. Metric B. Buttress

C. acme D. Square

The assembly in the figure below in coupled using a A. Pin B. Weld C. Rivet D. Screw

Which of the following figures shows a common internal tangent?

SECTION B

Answer question and any other four questions. Use all appropriate drawing materials and instruments. Marks will be awarded to good draughtmanship. Assume dimension where necessary.

1. The figure below shows a sketch plan of a bungalow. Study the given specifications and answer the questions that follow:

SPECIFICATIONS

All dimensions are given in millimeters

Foundation: 675 x 450 laid over 100 cement concrete blinding at a depth of 900 below ground level

Floor: 300 hardcore; 150 concrete slab, 25 Mortar screed; finished floor to ceiling 3150

Wall: All walls 225

Lintel: 225 x 225 reinforced concrete

Door: All doors are flush wooden 1820 x 750 x 40 on 100 x 50 timber frame.

Garage door – roller shutter 2725 x 2100

Beam: 225 x 225 reinforced concrete 2400 above floor level

Roof: 150 double pitch gable with corrugated Iron sheet; timber rafter – 200 x 50 at 100 centres eaves 600

Assumes suitable dimension where necessary

(a) Draw to a scale of 1:100

(i) The floor plan (ii) front elevation (iii) Rear elevation

b. Draw to a scale of 1:50, the section on plane P – P

2. The figure below shows two views of a block in first angle orthographic projection. Make a freehand pictorial sketch of the block, making X the lowest point.

3. Draw the development of the given elevation and plan of the sectional square based pyramid shown below along with its true section X – X

4. Using the given measurement for the two unequal cylindrical pipes inclining at angle of 300, draw their curve of interpenetration.

5. Draw in first angle orthographic projection the front, end and plan from the machine part shown below and section A – A.