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|
| Please pick the correct answer. |
| Q1 |
Which
of the following adaptors (or extension units) are unsafe? |
|
The same pin holes
can accept both rectangular-pin plugs and round-pin plugs |
|
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There are shutters inside
the pin holes |
|
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Both of the above are unsafe
|
| Q2 |
What
are the possible consequence(s) if insufficient space for heat dissipation
is allowed for an electrical appliance? |
|
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The electricity consumption
of the appliance increases substantially |
|
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The appliance may be damaged
due to overheating or a fire may break out |
|
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Both of the above |
| Q3 |
Which
electrical installation(s) inside a residential building must be inspected,
tested and certified periodically? |
|
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All communal fixed electrical
installations |
|
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All electrical installations
inside residential units |
|
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Any fixed electrical installation
with an approved loading exceeding 100A |
|
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Any fixed electrical installation
with an approved loading exceeding 200A |
| Q4 |
To
increase the allowable loading of electrical installations in a private
building, the owner of the installation must: |
|
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Obtain the approval of the
relevant electricity supplier |
|
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Obtain the approval of the
Director of Electrical and Mechanical Services |
|
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Employ a registered electrical
contractor to carry out the necessary work |
|
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Obtain the approval of the
relevant electricity supplier and employ a registered electrical contractor
to carry out the necessary work |
|
|
Obtain the approval of the
Director of Electrical and Mechanical Services and employ a registered
electrical contractor to carry out the necessary work |
| Q5 |
To
minimise the risk of fire, which of the following clothes must not
be dried in a tumble dryer? |
|
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Clothes containing downs or
latex |
|
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Clothes containing nylon |
|
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Clothes for infants |
|
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All of the above |
| Q6 |
5
different domestic appliances are classified under the "Energy Efficiency
Labelling Scheme" (EELS). Do you know what they are? |
|
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Televisions, refrigerators,
room coolers, washing machines and dishwashers. |
|
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Refrigerators, room coolers,
washing machines, compact fluorescent lamps and electric clothes dryers. |
|
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Microwave ovens, room coolers,
washing machines, compact fluorescent lamps and dishwashers. |
|
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Refrigerators, room coolers,
washing machines, electric clothes dryers and electric irons. |
| Q7 |
Which
"Energy Efficiency Grade" (EEG) is the most energy efficient? |
| Q8 |
Do
you know how much energy can be saved by using a Grade 1 refrigerator
instead of a Grade 3 refrigerator? |
| Q9 |
What
information is available on the energy label? |
|
|
annual energy consumption,
energy grading and brand/model |
|
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annual energy consumption,
annual energy costs and brand/model |
|
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energy efficiency index, testing
standards and brand/model |
| Q10 |
Which
one is not renewable energy? |
|
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compressed natural gas |
|
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solar power |
|
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wind power |
| Q11 |
In
accordance with the Gas Safety Ordinance, the maximum LPG cylinder
capacity that can be stored in any domestic premises is 130 litres
nominal water capacity, which is equivalent to how many LPG cylinders? |
|
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6 LPG cylinders (10.5 kg each) |
|
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4 LPG cylinders (13.5 kg each) |
|
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4 LPG cylinders (16 kg each) |
| Q12 |
What
toxic gas may be produced if a gas appliance is used in a closed area
(that is in an area with inadequate ventilation)? |
|
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Carbon monoxide |
|
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Carbon dioxide |
|
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Nitrogen |
| Q13 |
If
you detect a gas leak, you must not take which
of the following actions: |
|
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Leave the premises and dial
the emergency number |
|
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Turn off all electrical switches |
|
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Open all windows and doors
wide to disperse the gas |
| Q14 |
How
often should you replace the rubber tubing of a gas appliance? |
| Q15 |
Which
of the followings is an offence to use a flueless gas water heater? |
|
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Using the heater to supply
a bathroom or shower |
|
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Using the heater to supply
a kitchen for washing dishes |
|
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Using the heater under any
conditions |
| Q16 |
How
often is the owner of a lift or an escalator required to arrange periodic
maintenance for the lift or escalator? |
|
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One month |
|
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Two months |
|
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Three months |
| Q17 |
When
a child accompanied by its parents jumps inside a lift, is the operation
of the lift influenced? |
|
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Influenced; it may cause the
lift to stop |
|
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Not influenced |
|
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Overload device activated |
| Q18 |
If
you want to enter a lift but the lift doors are already half closed,
what should you do? |
|
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Rush into the lift |
|
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Pull the lift doors open by
hand |
|
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Wait for the next lift |
| Q19 |
When
a person pushing a baby stroller wants to go to the shopping arcade
upstairs by escalator, what should you do to help him/her? |
|
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Hold the stroller firmly,
push it onto the escalator to ascend to the upper floor |
|
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Hold the stroller firmly,
pull it onto the escalator to ascend to the upper floor |
|
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With the assistance of a caretaker,
carry the stroller and use the escalator to ascend to the upper floor |
|
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With the assistance of a caretaker,
use a lift to travel to the upper floor |
| Q20 |
When
using an escalator, how can you make sure you are using it correctly? |
|
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Stand on the right close to
the side panel |
|
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When there is no one obstructing
your passage, walk up and down along the steps |
|
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Hold the handrail and stand
firm |
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