Btech Year 9

Question 1

What is the general rule regarding horseplay in a workshop?

Answer 1

No horseplay or running

Question 2

What personal protective equipment (PPE) should be worn in the workshop?

Answer 2

• Goggles
• Boots
• Gloves
• Apron

Question 3

What should you do if an injury occurs in the workshop?

Answer 3

Report injuries immediately

Question 4

What is the importance of keeping the workshop floor clear?

Answer 4

To avoid tripping hazards

Question 5

What should you check before using tools?

Answer 5

Tools must be checked for broken handles or loose blades

Question 6

What is the proper way to carry sharp tools?

Answer 6

Carry blade down

Question 7

When is it acceptable to use machines in the workshop?

Answer 7

Only with teacher supervision

Question 8

What should you never do with wet hands when dealing with electricity?

Answer 8

Never touch with wet hands

Question 9

Define ergonomics.

Answer 9

User-friendly design

Question 10

What does OHS stand for?

Answer 10

Occupational Health & Safety

Question 11

What tool is used to draw horizontal lines?

Answer 11

T-square

Question 12

What is the purpose of a protractor?

Answer 12

To measure angles

Question 13

What line type is used for hidden parts in technical drawing?

Answer 13

Dashed line

Question 14

What are capital block letters used for in technical drawing?

Answer 14

For lettering

Question 15

What is crosshatching in rendering techniques?

Answer 15

Lines to show texture/shade

Question 16

What is the definition of an acute angle?

Answer 16

Less than 90°

Question 17

What is the diameter of a circle?

Answer 17

Across the circle

Question 18

How many sides does a pentagon have?

Answer 18

5

Question 19

What is a sector in geometry?

Answer 19

Like a pizza slice (2 radii + arc)

Question 20

What is the major axis of an ellipse?

Answer 20

Long line

Question 21

What is the first step in the design cycle?

Answer 21

Identify problem

Question 22

What does green design emphasize?

Answer 22

• Use recyclable materials
• Non-toxic materials
• Renewable materials

Question 23

What is the use of a coping saw?

Answer 23

Cutting curves in wood

Question 24

What is the difference between softwood and hardwood?

Answer 24

• Softwood: from conifers (fast-growing)
• Hardwood: from broadleaf trees (dense, strong)

Question 25

What is the main property of copper?

Answer 25

Conducts electricity

Question 26

What is the formula for total cost?

Answer 26

Total Cost = Material + Labour + Overhead

Question 27

What does the profit percentage formula calculate?

Answer 27

Profit % = ((Selling Price - Cost Price) / Cost Price) × 100

Question 28

What should a cutting list include?

Answer 28

* Name * Quantity * Material * L × W × T (length, width, thickness)

Question 29

What are two enterprising attitudes?

Answer 29

* Innovation * Risk taking

Question 30

True or False: A coping saw is used for straight cuts in wood.

Answer 30

False

Question 31

Fill in the blank: The _______ is used to guide the set square for lines.

Answer 31

T-square

Question 32

What is an oblique drawing characterized by?

Answer 32

45° receding lines

Question 33

What is the altitude in a triangle?

Answer 33

Line from vertex to base (perpendicular)

Question 34

🧰 Hand Tools

Question 35

Types and Uses:

Question 36

Marking: ruler

Answer 36

pencil

Question 37

Cutting: saws

Answer 37

chisels

Question 38

Holding: vice

Answer 38

clamps

Question 39

Driving: hammer

Answer 39

screwdriver

Question 40

Boring: hand drill

Answer 40

brace

Question 41

Finishing: files

Answer 41

sandpaper

Question 42

Safety Tips:

Question 43

Keep blades sharp and clean

Question 44

Cut away from your body

Question 45

Store tools properly

Question 46

Wear goggles and closed shoes

Question 47

⚙️ Machine Tools

Question 48

Used for drilling

Answer 48

sanding

Question 49

Examples: drill press

Answer 49

lathe

Question 50

Safety Rules:

Question 51

Wear goggles

Question 52

No loose clothing

Question 53

Ask teacher before using machines

Question 54

Turn off power before adjusting tools

Question 55

🪵 Materials

Question 56

Types:

Question 57

Wood: softwood (pine) and hardwood (mahogany

Answer 57

teak)

Question 58

Metal: ferrous (iron

Answer 58

steel) and non-ferrous (aluminium

Question 59

Plastic: thermosetting (can’t remelt) and thermoplastic (can remelt)

Question 60

Ceramics: clay

Answer 60

bricks

Question 61

Properties of Materials:

Question 62

Hardness – resist wear

Question 63

Toughness – withstand impact

Question 64

Elasticity – return to shape

Question 65

Durability – long-lasting

Question 66

Conductivity – allows heat/electricity

Question 67

✏️ STRAND 2: DRAWING AND DESIGN

Question 68

📐 Technical Drawing

Question 69

Used to communicate design ideas clearly and accurately.

Question 70

Types of Lines:

Question 71

Line Type Use

Question 72

Outline (thick) visible edges

Question 73

Hidden (dashed) unseen parts

Question 74

Centre (long-short-long) symmetry

Question 75

Dimension line shows measurements

Question 76

Drawing Tools:

Question 77

T-square

Answer 77

set squares

Question 78

🧩 Orthographic Drawing

Question 79

Shows different views (front

Answer 79

top

Question 80

Always drawn to scale and labeled

Question 81

Pictorial Drawing:

Question 82

Isometric: 3D view

Answer 82

30° angles

Question 83

Oblique: front true size

Answer 83

side at 45°

Question 84

Steps:

Question 85

Lightly sketch

Question 86

Draw outlines

Question 87

Add dimensions

Question 88

Check alignment

Question 89

Darken final lines

Question 90

🧯 STRAND 3: SAFETY AND WORKSHOP PRACTICE

Question 91

🔧 Workshop Rules

Question 92

No running or playing

Question 93

Report accidents

Question 94

Keep area clean

Question 95

Return tools after use

Question 96

No unsupervised machine use

Question 97

👷 Personal Safety

Question 98

Wear goggles

Answer 98

apron

Question 99

Tie back long hair

Question 100

Focus when working

Question 101

🔥 Fire Safety

Question 102

Know where fire extinguishers and exits are

Question 103

Never use water on electrical fires

Question 104

Turn off power in emergencies

Question 105

Don’t leave machines running

Question 106

🪚 STRAND 4: PROCESSES AND TECHNIQUES

Question 107

Woodwork

Question 108

Main Processes:

Question 109

Marking → Cutting → Planing → Joining → Finishing

Question 110

Common Joints:

Question 111

Butt joint

Question 112

Lap joint

Question 113

Dovetail joint

Question 114

Mortise and tenon joint

Question 115

Finishes: paint

Answer 115

varnish

Question 116

Metalwork

Question 117

Processes:

Question 118

Mark → Cut → File → Drill → Join → Finish

Question 119

Methods of Joining: soldering

Answer 119

riveting

Question 120

Common Metals: aluminium

Answer 120

copper

Question 121

Finishing: painting

Answer 121

polishing

Question 122

Plastics

Question 123

Processes: shaping (heat

Answer 123

bending)

Question 124

⚡ STRAND 5: ENERGY AND POWER

Question 125

Sources of Energy

Question 126

Renewable: solar

Answer 126

wind

Question 127

Non-renewable: coal

Answer 127

oil

Question 128

Electricity

Question 129

AC: household current

Question 130

DC: battery current

Question 131

Simple Circuit: power → switch → load → return

Question 132

Safety:

Question 133

Don’t touch wet wires

Question 134

Use correct fuse

Question 135

Report sparks

Question 136

🌍 STRAND 6: TECHNOLOGY AND SOCIETY

Question 137

Appropriate Technology

Question 138

Uses local materials

Answer 138

skills

Question 139

Example: making furniture from recycled wood

Question 140

Sustainable Practices

Question 141

Reduce waste

Question 142

Reuse materials

Question 143

Recycle products

Question 144

Save electricity and water

Question 145

Effects of Technology

Question 146

Positive: faster work

Answer 146

improved products

Question 147

Negative: pollution

Answer 147

waste