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BASIC TECHNOLOGY JSS2

Total questions: 30

Worksheet time: 32mins

Name
Class
Date
1.

There are------ types of screw

a)

Two

b)

One

c)

Four

d)

Three

2.

The following are tools used in technical drawing except?

a)

Drawing board

b)

Paper clip

c)

Drawing sheet

d)

Spanner

3.

_____________ are the complete drawings builder use at site to build.

a)

Blue prints

b)

Green prints

c)

Red prints

d)

Black prints

4.

A person walking on the road is a_____________

a)

Motorist

b)

Pedestrian

c)

Cyclists

d)

Rider

5.

The force that tends to stop movement between any two surfaces which are moving over each other is

a)

Friction

b)

Motion

c)

Movement

d)

Sliding

6.

____________ connect two pulleys and make them run in the same direction.

a)

Cross belt and pulley

b)

V-belt and pulley

c)

Open belt and pulley

d)

Chain belt and pulley

7.

Belts are made of

a)

Wood

b)

Fibre

c)

Plastic

d)

Rubber

8.

A wheel fixed in machines to make different parts move at different speed or direction is .........

a)

Belt

b)

Gear

c)

Chain

d)

Brake

9.

Calculate the speed of rotation of a 20 tooth gear when driven by a 40 tooth gear and rotating 10 rmp.

a)

20 rmp

b)

30 rmp

c)

40 rmp

d)

50 rmp

10.

If a gear with 10 teeth is used to drive a gear with 20 teeth, calculate the gear ratio.

a)

3:1

b)

2:1

c)

4:1

d)

1:1

11.

Hydraulic system operates on

a)

Compressible oil

b)

Compressible air/gas

c)

In compressible oil

d)

In compressible air/gas

12.

One of the following saws can be used for cutting metals.

a)

Tenon saw

b)

Dovetail saw

c)

jig saw

d)

hack saw

13.

Pneumatic system is used in the food industry because...

a)

It is good for preserving food

b)

It does not conterminate food

c)

It makes the food more edible

d)

It reduces the potency of the food

14.

In order to mix the concrete very well, one needs ...................

a)

Fork and knife

b)

Spoon

c)

Shovel

d)

Hand trowel

15.

   Battery elements and terminals are made from .................

a)

Copper

b)

Brass

c)

Tin

d)

Lead

16.

One of the following can be used together with the chain in drive mechanism.

a)

Gears

b)

Sprocket

c)

Pulley

d)

Linkage

17.

The formula for finding the speed ratio of a drive mechanism is

a)

Driver speed/Driven speed

b)

Driven speed/Driver speed

c)

No of teeth on the driver/ No of teeth on the driven

d)

No of teeth on the driven/ No of teeth on the driver

18.

The form of mechanical energy that a body posses when it is at rest is ............ energy.

a)

Potential

b)

Kinetic

c)

Mechanical

d)

Static

19.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
20.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
21.

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

a)

1/3 ohms

b)

3 ohms

c)

27 ohms

d)

9 ohms

22.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
23.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
24.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
25.
If a dolphin can swim 100 meters in 5 seconds, what is the dolphin's speed?
a)
25 m/s
b)
20 m/s
c)
20 meters
d)
500 m/s
26.

This material is....

a)

corrosive

b)

toxic

c)

flammable

d)

ignitable

27.

This material is...

a)

flammable

b)

toxic

c)

explosive

d)

corrosive

28.
Recognize the view for the given isometric figure.
a)
Front view
b)
Right side view
c)
Left side view
d)
Top view
29.
Recognize the view for the given isometric figure.
a)
Top view
b)
Right side view
c)
Left side view
d)
Top view
30.

Which is the correct front view of the figure provided?

a)
b)
c)
d)