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Systems Engineering Exam (2016)

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.
When using a bench grinder to repair a flat-blade screwdriver, which combination of personal protective equipment (PPE) is most appropriate?
a)
safety glasses, protective clothing and earmuffs
b)
safety glasses, earmuffs and leather gloves
c)
safety glasses, hairnet and leather gloves
d)
safety glasses, hard hat and earmuffs
2.
During a manufacturing process, a small electrical fire starts. The most appropriate action to take would be to immediately stop all work and then
a)
call out ‘Fire!’ and leave the workshop.
b)
leave the workshop in an orderly manner.
c)
look for the nearest fire extinguisher.
d)
raise the alarm and use a dry powder extinguisher on the fire.
3.

Below is a diagram of a tension wrench that can be extended. The tension wrench has a handle extension that is equal in length to the original handle.

What should the torque setting be?

a)

half

b)

double

c)

quarter

d)

left the same

4.
The predominant force acting on the drive shaft of a vehicle is an example of
a)
compression.
b)
tension.
c)
torsion.
d)
shear.
5.
What is the most important intention of occupational health and safety (OH&S) standards in the workplace?
a)
to have an independent officer in workplace safety
b)
to make employers responsible for employee safety
c)
to make employees responsible for safety in the workplace
d)
to protect the safety, health and welfare of everyone in the workplace
6.

Bolts have a recommended torque setting.

Which one of the following gives the best description of what a torque setting indicates?

a)

how tight the bolt should be

b)

how much the bolt can be stretched

c)

the amount of resistance between the bolt and the component

d)

how much pressure can be applied to the bolt before it breaks

7.

The gears shown above are referred to as

a)

spur gears.

b)

crown gears.

c)

a rack and pinion.

d)

an epicycle gear set.

8.
Solar cells operate by converting
a)
heat to electrical energy.
b)
light to electrical energy.
c)
biomass to electrical energy.
d)
thermal energy to electrical energy.
9.
Which one of the following statements about the law of conservation of energy is most accurate?
a)
Energy can be created but not destroyed.
b)
Energy is created and changed from one form into another.
c)
Energy is destroyed when changed from one form into another.
d)
Energy is not created or destroyed but changed from one form into another.
10.

What is the force required to balance the system shown above?

a)

200 N

b)

300 N

c)

600 N

d)

1200 N

11.

What would be the maximum reading on an ohmmeter if two 100 Ω 5% resistors are placed in series, as shown above?

a)

200 Ω

b)

205 Ω

c)

210 Ω

d)

220 Ω

12.

What is the equivalent capacitance between points A and B in the network shown above?

a)

10 μF

b)

20 μF

c)

25 μF

d)

40 μF

13.

Which one of the following pulley systems would have a mechanical advantage of 3:1?

a)
b)
c)
d)
14.

Which one of the following is the truth table for the circuit shown above?

a)
b)
c)
d)
15.

What is the smallest equivalent resistance of a network that can be made from a set of four 100 Ω resistors?

a)

10 Ω

b)

25 Ω

c)

200 Ω

d)

400 Ω

16.

What is the resistance of resistor R in the network shown above?

a)

40 Ω

b)

360 Ω

c)

40 kΩ

d)

360 kΩ

17.

What is the reading on the multimeter shown above?

a)

179 kΩ

b)

1790 Ω

c)

179 Ω

d)

1.79 Ω

18.

What is the ratio of the pulley system shown above?

a)

6:1

b)

1:6

c)

3:1

d)

1:3

19.

The number 278 000 written in engineering notation and accurate to exactly two significant figures is

a)

278×102278\times10^2

b)

280×103280\times10^3

c)

2.78×1052.78\times10^5

d)

2.8×1052.8\times10^5

20.

In the circuit shown above, the reading of the voltmeter is 3 V. The best possible explanation for this is

a)

R2 has a short.

b)

R1 is open circuit.

c)

the voltmeter has an internal resistance of 100 kΩ.

d)

an ammeter was mistakenly used instead of a voltmeter.

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