| 21 |
Two solids are said to be placed centrally. What does this mean? |
Engineering Graphics
Combining two solids |
Easy |
| 22 |
When a cylinder is placed centrally on a square slab, where is the centre of the cylinder's base located? |
Engineering Graphics
Combining two solids |
Easy |
| 23 |
A cone of height 40 mm is placed centrally on a cube of side 50 mm. In isometric projection, how high above t… |
Engineering Graphics
Combining two solids |
Medium |
| 24 |
A sphere of radius 25 mm rests centrally on top of a cylinder. How is it drawn in isometric projection? |
Engineering Graphics
Combining two solids |
Medium |
| 25 |
A hexagonal prism (side 20 mm) is placed centrally on a square slab of side 80 mm. Which statement about the … |
Engineering Graphics
Combining two solids |
Hard |
| 26 |
What is the thread angle of an ISO metric screw thread? |
Engineering Graphics
Screw threads |
Easy |
| 27 |
Which thread profile is generally preferred for transmitting power, as in a screw jack? |
Engineering Graphics
Screw threads |
Easy |
| 28 |
A double-start thread has a pitch of 3 mm. How far does the screw advance in one complete turn? |
Engineering Graphics
Screw threads |
Medium |
| 29 |
A thread has rounded crests and roots, a 55° included angle and a depth of about 0.64 times the pitch. Which … |
Engineering Graphics
Screw threads |
Medium |
| 30 |
Why is a knuckle thread suitable for parts such as railway carriage couplings that are handled roughly? |
Engineering Graphics
Screw threads |
Hard |
| 31 |
Why are hexagonal nuts more common than square nuts on machines? |
Engineering Graphics
Bolts and nuts |
Easy |
| 32 |
Using the proportion S = 1.5D + 3 mm, what is the width across flats of a nut for an M20 bolt? |
Engineering Graphics
Bolts and nuts |
Easy |
| 33 |
Using the proportions nut thickness = D and bolt head height = 0.8D, what is the difference between the two f… |
Engineering Graphics
Bolts and nuts |
Medium |
| 34 |
The front view of a hexagonal nut shows three faces with curved arcs on each. What causes these arcs? |
Engineering Graphics
Bolts and nuts |
Medium |
| 35 |
A bolt must have its head held from turning while the nut is tightened, and the head sits in a recess cut in … |
Engineering Graphics
Bolts and nuts |
Hard |
| 36 |
What is the main function of a plain washer under a nut? |
Engineering Graphics
Washers and nut-bolt assembly |
Easy |
| 37 |
In a sectional front view of a nut-bolt assembly cut along the bolt axis, how is the bolt shown? |
Engineering Graphics
Washers and nut-bolt assembly |
Easy |
| 38 |
Using washer proportions hole D + 1 mm, outside diameter 2D + 3 mm and thickness 0.15D, what is the outside d… |
Engineering Graphics
Washers and nut-bolt assembly |
Medium |
| 39 |
Two plates each 15 mm thick are joined with an M20 bolt, a 3 mm washer and a nut 20 mm thick. What is the lea… |
Engineering Graphics
Washers and nut-bolt assembly |
Medium |
| 40 |
Why should the threaded portion of a bolt end slightly inside the clearance hole of the parts being joined? |
Engineering Graphics
Washers and nut-bolt assembly |
Hard |