Engineering Mock 2025

Question 1 of 50

The Akosombo Dam generates electricity from

Question 2 of 50

Identifying hazards, judging the risks and deciding on controls is a

Question 3 of 50

An appliance draws 5 A from a 240 V supply. What is its power?

Question 4 of 50

Ghana's Bui Dam on the Black Volta generates

Question 5 of 50

A wind turbine converts

Question 6 of 50

Energy from plant and animal materials, such as wood, crop waste and biogas, is

Question 7 of 50

Replacing filament bulbs with LED bulbs saves energy because LEDs

Question 8 of 50

The three main parts of a power supply system are generation, transmission and

Question 9 of 50

Repeatedly testing a design and improving it is called

Question 10 of 50

A computer system built into a product to control it, such as in a washing machine, is

Question 11 of 50

The part of a computer that carries out instructions is the

Question 12 of 50

The branch of engineering concerned with machines, engines and mechanisms is

Question 13 of 50

The branch of engineering that designs processes to turn raw materials into products such as fuels and fertilisers is

Question 14 of 50

How many millimetres are in 2.5 m?

Question 15 of 50

The prefix "kilo" means

Question 16 of 50

The point through which the whole weight of a body appears to act is its

Question 17 of 50

Which material is a good thermal insulator?

Question 18 of 50

A material that returns to its original shape when a load is removed shows

Question 19 of 50

A hazard is

Question 20 of 50

Locking off and tagging a machine's power supply before maintenance prevents

Question 21 of 50

An engineer who reports unsafe practices in their company to the authorities is

Question 22 of 50

An LED is usually connected with a resistor in series in order to

Question 23 of 50

In a parallel circuit, each branch has

Question 24 of 50

A solar water heater costs GH¢3,000 and saves GH¢500 a year in electricity. What is the payback period?

Question 25 of 50

A survey of how and where a building uses energy, to find savings, is an

Question 26 of 50

A quick, low-cost model used to test an idea early is a

Question 27 of 50

3D printing is useful in prototyping mainly because it

Question 28 of 50

A rugged industrial computer used to control machines on a production line is a

Question 29 of 50

A thermostat that switches a heater on and off to keep a set temperature is an example of

Question 30 of 50

Clear limits on a design, such as budget and size, are called

Question 31 of 50

A table that scores design options against criteria to choose the best is a

Question 32 of 50

A beam supported at one end only is a

Question 33 of 50

A uniform plank 4 m long weighs 200 N and rests on two supports at its ends. What force does each support carry?

Question 34 of 50

Vertical structural members that carry loads in compression are

Question 35 of 50

The ability of a material to absorb energy without breaking, such as resisting impact, is

Question 36 of 50

Risk is commonly rated as

Question 37 of 50

A 12 V battery rated 60 Ah can deliver 3 A for about

Question 38 of 50

The power dissipated in a 100 Ω resistor carrying 0.2 A is

Question 39 of 50

Design for assembly aims to

Question 40 of 50

A ladder diagram is used to program

Question 41 of 50

The SI unit of stress is the

Question 42 of 50

A vernier caliper reading with main scale 23 mm and vernier 0.35 mm gives

Question 43 of 50

A wind turbine's power output is proportional to the

Question 44 of 50

A hydroelectric plant with 100 m head and 10 m³/s flow at 90% efficiency produces about (ρ = 1,000 kg/m³, g = 10 m/s²)

Question 45 of 50

Replacing ten 60 W bulbs with 9 W LEDs used 5 hours a day saves how much energy per day?

Question 46 of 50

U-value in building insulation measures

Question 47 of 50

Transmitting 1 MW at 100 kV instead of 10 kV reduces I²R losses by a factor of

Question 48 of 50

Finite element analysis (FEA) is used to

Question 49 of 50

Real-time embedded systems must

Question 50 of 50

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