The road sign below means

• A. no entry
• B. maximum speed limit
• C. no stopping
• D. no parking

The use of water closet and septic tanks is preferred to the use of bucket and pit latrines because

• A. it is cost effective
• B. contaminated faeces are completely kept away from flies
• C. the water for flushing contains chlorine which kills the germs
• D. It prevents flies from breeding

State three materials used for making optical fibres.

An example of commodity money is

• A. currency note
• B. mobile money
• C. cheques
• D. silver

When a country's population is experiencing increasing returns, that country is said to be?

• A. overpopulated
• B. economically poor
• C. over-producing goods and services
• D. under-populated

As a bicycle Tyre was being pumped up, it was noticed that contrary to Boyle's law the volume increased as the pressure increased. The best explanation of this is that Boyle's law is only true for

• A. ideal gases
• B. a fixed mass of gas
• C. a mixture of gases
• D. a gas at variable temperature

The diagram below represents a portion of a micrometer screw gauge in which the horizontal scale is in millimetres. What is the reading on the instrument?

• A. 3.72mm
• B. 3.50mm
• C. 3.30mm
• D. 3.22mm

(a) Give one example of naturally-occurring acids

(b) If 0.5 mole of a mono-alkanoic acid weighs 44g, determine the molecular formula and the name of the acid. (H = 1, C = 12, O = 16)

The establishment of cooperative farming is encouraged by governments because it

• A. enables farmers to control soil erosion
• B. facilitates the use of hand tools
• C. enables individual farmers to acquire capital
• D. allows farmers to cultivate small and scattered plots

Given that 1/3 of the N6000 stock held by a branch is purchased from outsiders. If goods are invoiced to branch at 25% on cost, the provision for unrealized profit is?

• A. N1000.00
• B. N333.33
• C. N666.66
• D. N800.00