wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Machine Design and Shop Practices Elements (Module 1)

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

The function of the clutch in the machine tool is:

a)

Lowering of drive speed

b)

Alignment of drive shaft

c)

To disconnect or connect at will the drive

d)

To ensure that two shafts line up at high speed

2.

Height of the tooth above the pitch circle or the radial distance between the pitch circle and the top land of the tooth.

a)

top root

b)

addendum

c)

land

d)

hunting tooth

3.

In involute teeth, the pressure angle is often defined as the angle between the line of action and the line tangent to the pitch circle. It is termed as:

a)

helix angle

b)

angle of recess

c)

angle of obliquity

d)

arc of action

4.

In the selection of wire rope, regular lay means wires and strands are arranged in the following manner:

a)

twisted in the same direction

b)

twisted in any direction

c)

twisted in the opposite direction

d)

twisted in along direction

5.

Also called an eccentrically loaded bearing, it is

a)

full bearings

b)

offset bearing

c)

partial bearing

d)

fitted bearing

6.

The property of a material that relates the lateral strain to the longitudinal strain.

a)

stress

b)

strain

c)

Poisson's ratio

d)

endurance limit

7.

The angle included between the side of the thread measured in an axial plane in a screw thread:

a)

angle of thread

b)

angle between thread or 40°

c)

helix angle thread

d)

half angle thread or 20°

8.

Flat leather belting is not recommended for use in excess of fpm.

a)

3600

b)

4800

c)

6000

d)

all of these

9.

The reciprocal of a diametral pitch, or the ratio of pitch diameter to the number of teeth.

a)

lead

b)

module

c)

involute

d)

clearance

10.

For an evenly distributed and uniform wear on each meshing gear tooth, the ideal design practice is to consider

a)

wear resistance alloy addition to tooth gear

b)

heat treatment of the gears

c)

hardening of each tooth

d)

hunting tooth addition

11.

The changes in shape or geometry of the body due to the action of a force on it is called deformation or

a)

shear stresses

b)

stresses

c)

compressive stress

d)

strain

12.

The differential of the shear equation is which one of the following:

a)

bending moment of the beam

b)

tensile strength of the beam

c)

slope of the elastic curve

d)

load of the beam

13.

Gear used to transmit power at high velocity ratios between non-intersecting shafts that are usually, but not necessarily, at right angles.

a)

helical gear

b)

bevel gear

c)

worm gear

d)

spiral gear

14.

The ratio of the moment of inertia of the cross-section of the beam to the section modulus:

a)

equal to the radius of gyration

b)

equal to the area of the cross-section

c)

measure of a distance

d)

dependent on the modulus of elasticity of the beam

15.

Opposite direction parallel forces:

a)

concurrent

b)

coplanar

c)

couple

d)

non-coplanar

16.

Which of the following is not a structural class of steel?

a)

high speed steel

b)

tool and die

c)

low carbon

d)

high carbon

17.

Continuous stretching under load, even if the stress is less than the yield point:

a)

plasticity

b)

elasticity

c)

creep

d)

ductility

18.

It is recommended for high-speed applications that the minimum number of teeth in a small sprocket should be:

a)

26 to 30

b)

12 to 16

c)

26 to 28

d)

18 to 24

19.

In gear design, the ratio of pitch diameter in inches to the number of teeth is called:

a)

module

b)

diametral pitch

c)

English module

d)

Circular

20.

The concave portion of the profile where it joins the bottom of the tooth space:

a)

fillet

b)

addendum

c)

dedendum

d)

clearance

21.

The distance of the tooth which is equal to the addendum and dedendum:

a)

A full

b)

whole

c)

working depth

d)

dedendum

22.

Stresses that are independent of loads:

a)

working stress

b)

operating stress

c)

residual stress

d)

shear stress

23.

It is used to change rotary motion to reciprocating motion:

a)

helical gear

b)

rack gear

c)

worm gear

d)

spur gear

24.

It is recommended not to have a direct drive and sprockets if the ratio of their teeth exceeds

a)

10 times

b)

8 times

c)

5 times

d)

6 times; use two or more step combinations.

25.

The motion of an object with diminished/decreased speed:

a)

deceleration

b)

all of the above

c)

retarded motion

d)

negative impulse

26.

Most popular soldering material:

a)

10/80

b)

45/55

c)

50/50

d)

60/40

27.

The following pertain to the joining of metals except:

a)

welding

b)

soldering

c)

casting

d)

brazing

28.

Killed steel is always associated with

a)

silicon

b)

manganese

c)

phosphorous

d)

sulfur

29.

The usual ratio of water to soluble oil used as cutting fluid:

a)

50% water to 50% oil

b)

2 parts water to 1 part oil

c)

3 parts water to 1 part oil

d)

4 to 80 parts water to 1 part oil

30.

The good deoxidizer in steel melting:

a)

Manganese

b)

Silicon

c)

All of these

d)

Aluminum