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WorksheetsSystems Engineering Exam (2013)
Total questions: 20
Worksheet time: 14mins
The gear set shown above is called a
rack and gear set.
worm and gear set.
rack and pinion set.
worm and pinion set.
Pulley A, shown above, is 5 cm in diameter and rotates at 40 rpm in a clockwise direction. How fast and in what direction is pulley B rotating?
20 rpm, clockwise
20 rpm, anticlockwise
80 rpm, clockwise
80 rpm, anticlockwise
Which one of the following best describes point X on the end of link D in the diagram above?
load
effort
fulcrum
mechanical advantage
A 100 N force is applied to end A. If the diagram above is to scale, the force on end B will be closest to
100 N to the left.
50 N to the right.
100 N to the right.
200 N to the right.
Link C is a
first-class lever.
second-class lever.
third-class lever.
fourth-class lever.
A scissor jack is often used to lift motor vehicles. The scissor jack shown above converts rotary motion to
lift.
force.
linear motion.
mechanical advantage.
Friction drive is used in many mechanical applications. Which one of the following devices relies on friction for drive?
gear train
drive shaft
pulleys and belts
chains and sprockets
The device shown above is used to allow motion in one direction only. What is the part that is labelled 2 on the device?
a pawl
a latch
a ratchet
a clacker
Ammeters are usually connected for test purposes in
pairs.
series.
parallel.
combination.
A battery charger is rated at 2 A and is 75 per cent efficient. How long will it take to charge a 12 Ah battery?
4.5 hours
6 hours
8 hours
9 hours
The reading on the multimeter shown above is
13 k
1.30 V
1.30 Ω
1300 Ω
Which one of the truth tables shown below represents an exclusive OR (XOR) gate, as shown above?
What is the total resistance of the circuit shown above?
2.0 Ω
2.4 Ω
10.0 Ω
24.0 Ω
What is the total current in the circuit shown above?
0.5 A
2 A
20 A
150 mA
The purpose of heat sink pliers is to
hold small components when tightening fasteners.
assist with avoiding dry solder joints when constructing an electrical circuit.
hold the circuit board safely when constructing an electrical circuit.
absorb heat during the soldering of components when constructing an electrical circuit.
What is the output voltage of the transformer shown above?
2 V
55 V
220 V
550 V
After researching the feasibility of and alternatives for a product, the next step in the systems engineering process is to
design and model the system.
test and analyse the performance.
plan and fabricate the subsystems.
identify and document the problem.
When a new product, such as a new car, is designed for the market, there is usually extensive field testing carried out on the product. The purpose of field testing is to check whether
people like the product.
the product will sell well.
the product has the right colour range.
the product performs to the design requirements
Which one of the energy sources listed below is renewable?
coal
biomass
natural gas
petroleum oil
A small pedestal drill has a yellow safety line marked around its base on the floor. The yellow safety line defines an area that
no person should enter.
can be part of a walkway.
is accessed only by the operator of the drill.
requires the wearing of hearing protection.
