WAEC Past Questions and Answers - Page 3518

17,586.

Find the cost of running a 60W lamp for 24 hours. If 1kW hr cost 5 naira

A.

14.4 naira

B.

12.5 naira

C.

7.2 naira

D.

2.0 naira

Correct answer is C

Cost = P(Kwh) x Cost per KW

= \(\frac{60 \times 24}{1000} \times N5 = N7.2\)

17,587.

One advantage of the sole proprietor is that

A.

Control and supervise is under one man

B.

Accounts must be publisized

C.

It is always successful

D.

Funds are easy to obtain

Correct answer is A

No explanation has been provided for this answer.

17,588.

A car fuse marked 3A operates optimally on a 12V battery, calculate the resistance of the fuse

A.

36.0\(\Omega\)

B.

15.0\(\Omega\)

C.

9.0\(\Omega\)

D.

4.0\(\Omega\)

Correct answer is D

R = \(\frac{v}{I} = \frac{12}{3} = 4\Omega\)

17,589.

Which of the following is a type of business organization?

A.

Stock exchange

B.

Insurance company

C.

Chain stores

D.

Co-operative

Correct answer is D

No explanation has been provided for this answer.

17,590.

Which of following functions is performed by manganese IV oxide in the Lenclanche cell?

A.

control of local action

B.

depolarisation of the cell

C.

regulating current flow in the cell

D.

reduction of the internal resistance of the cell

Correct answer is B

No explanation has been provided for this answer.