Building and engineering drawing conventions

Question 1 of 10

A tolerance of Ø25 H7/g6 is an example of a

A. clearance fit B. interference fit C. transition fit only D. no fit

Question 2 of 10

M10 × 1.5 on a drawing indicates

A. a metric thread of 10 mm diameter and 1.5 mm pitch B. 10 bolts of 1.5 mm C. a 1.5 m bar D. a 10° chamfer

Question 3 of 10

On a building section, the DPC is shown just above

A. ground level in the wall B. the roof C. the ceiling D. the window head

Question 4 of 10

On a building plan, a door is usually shown with

A. a gap in the wall and an arc showing its swing B. a double line C. a cross D. a shaded circle

Question 5 of 10

A scale of 1:100 on a building plan means 1 cm represents

A. 1 m B. 10 m C. 10 cm D. 100 m

Question 6 of 10

In engineering drawing, the abbreviation "PCD" stands for

A. parallel cut depth B. perpendicular centre distance C. projected circle drawing D. pitch circle diameter

Question 7 of 10

A section line (cutting plane) is drawn as

A. a thin chain line thickened at the ends with arrows B. a thick continuous line C. a dashed line D. a wavy line

Question 8 of 10

The symbol Ø on a drawing means

A. diameter B. radius C. angle D. square

Question 9 of 10

The conventional representation of an external screw thread shows the root diameter with

A. dashed lines only B. thick lines C. thin lines D. chain lines

Question 10 of 10

The block in the corner of a drawing that gives the title, scale and name is the

A. title block B. border C. key plan D. legend only

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New set of questions

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.

Past questions, worked solutions and curriculum-mapped study material for JHS and SHS students and teachers in Ghana.

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