Past Questions And Answers
The term bus' width in data transfer refers to the?
- A. number of wires in the bus.
- B. size of the data movement.
- C. number of bits of information the RAM can send to the CPU at the same time.
- D. number of wires in the bus that carry information to the processor at a time
(a) (i) List thetwo gaseous fuels produced from coke.
(ii) Which of thetwo fuels listed in 5(a)(i) is a better fuel?
(iii) Give reasons for your answer in 5(a)(ii)
(iv) Write a balanced equation for the production of each of the fuels. [9 marks]
(b)(i) Differentiate between thermosets and thermoplastics.
(ii) Giveone example of:
I. thermosets;
II. thermoplastics.
(iii) Statethree properties of plastics.
(c)(i) State the method of collecting gases which are denser than air.
(ii) Nametwo gases that could be used to perform the fountain experiment in the laboratory.
(iii) State the physical properties of the gases named in 5(c)(ii) which makes them suitable for the experiment. [4 marks]
(d) (i) Statetwo compounds that could be used to test for water.
(ii) Givethree disadvantages of hard water.
View Discussion (0)WAEC 2018 THEORYFiscal policy involves changes in?
- A. open market operations
- B. revenue and expenditure of government
- C. money supply to the economy
- D. imports and exports
Disposable income is an income which?
- A. is available for consumption and savings
- B. pensioners receive from the government
- C. is payable to the disable members of the community
- D. accures to the environmental sanitation authorites for refuse disposal
Factorize 2e2 - 3e + 1
- A. (2e-1) (e-1)
- B. (e+1) (2e+1)
- C. (2e+3) (e+2)
- D. (2e-3) (e-1)
The production of biogas from the fermentation of waste materials is an example of
- A. combustion
- B. incineration
- C. refining
- D. recycling
Which of the following agents is not associated with chemical weathering?
- A. oxidation
- B. pressure
- C. hydrolysis
- D. carbonation
A substance is said to be impure if
- A. its melting point range is wide
- B. it dissolves in water with difficult
- C. it has a low melting point
- D. it is coloured
The Organization of Petroleum Exporting Countries came into existence at a conference held in
- A. Tripoli
- B. Caracas
- C. Riyadh
- D. Baghdad
if a given change in price brings a proportionately larger change in quantity demanded, the
- A. demand is relatively price elastic
- B. demand is relatively price inelastic
- C. price elasticity of demand is unitary
- D. price elasticity of demand is constant