1.The national demand on the electrical system on a warm and bright day is likely to be

(a) low (b) unchanged (c) high (d) zero

2. An industrial maximum-demand meter indicates the demand during

periods of

(a) one month (b) 30 minutes (c) one hour (d) a quarter

3. The maximum-demand meter gives its reading in terms of

(a) kW (b) A (c) kVA (d) kVAr

4. The fixed or standing charge part of a domestic tariff is

(a) intended to pay for the total energy used

(b) a contribution towards the cost of providing the supply

(c) a government tax on the consumer

(d) the value-added tax

5. An off-peak tariff is

(a) a low energy rate for electricity used at off-peak times

(b) a special tariff for large consumers

(c) never applied to domestic consumers of electricity

(d) a high energy rate for electricity used at off-peak times

6. An electricity consumer with a demand of 500 kW

(a) can arrange to take his supply from any of the electricity supply or generating companies

(b) will have difficulty in obtaining in electricity supplier for such a

large load (c) must take his supply from the local electricity supply company

(d) must take his supply from one of the generating companies