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THE HONGKONG GOVERNMENT GAZETTE, 14TH FEBRUARY, 1891.
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8. Draw out a Promissory note for $2,000 to H. C. Smith to be paid thirty days after date.
9. On Jan. 1st, I received a draft from England for £200 payable 1st April. Wanting the money, the Bank cashes it for me on Jan. 1st, deducting 2 % as discount; the £ being worth $6. What amount did I receive ?
10. The following is from a Hongkong paper:—
Exchange on London.
Bank Bills on demand
""
3s. 3d.
at 30 days' sight 3s. 3 d.
Documentary at 4 months 3s. 37d.
Explain these terms, and at the first named rate say what one would get for £250.
CLASS I-CHEMISTRY.
2-4. 30.
(1) Classify the following substances and state which of them are organic:-Zine, water, iron, carbon, glycerine, gun-powder, a shilling, sulphur, some spermaceti, glass, phosphorus, starch, gold, chalk, sugar.
(2) State which of the following elements are--
(a.) metallic,
(b.) non-metallic,
(c) so-called non-metallic,
and give the symbol of each :--selenium, carbon, iodine, antimony, tellurium, chromium, arsenic, bismuth, silicon.
(3) Explain the meaning of each of the following terms:-chemistry, synthesis, specific gravity,
kinetic heat, normal pressure (of gases), electrolysis.
(4) Give the vulgar names of the substances represented by the following formula:
H’SO, i10, CaO, KHÓ, H*N.
(5) State what you know of the electrical relationships of chemical compounds in general and of
water in particular.
(6) Compare the effects on the air exercised by the respiratory action of the human body and by
the respiratory and feeding processes of plants.
(7) State the Law of Volumes as regards clements--
(a) with reference to hydrogen, oxygen, and nitrogen,
(b) with reference to elements generally.
(8) Describe how you would prepare hydrogen from water and explain your method.
CLASS I-MENSURATION.
9-12.
1.. The sides of a triangle are 22,620 feet and 12,815 feet, and the height is 11,484 feet; find the base. 2. Find the radius of the circle circumscribing a square whose side is 8 feet.
3. The height of an arc is 2.28 feet, and the chord of half the arc is 7.15 feet; find the diameter of
the circle.
4. One side of a regular hexagon inscribed in a circle is 3 feet; find the circumference of the circle. 5. The radius of a circle is 82.66 feet; the perpendicular drawn from the centre on the chord is 71.1
feet; find the chord.
6. Find the perimeter of an isosceles triangle each of whose equal sides is 10 ft. and the perpendi-
cular on base is 8 ft.
7. A rectangle measures 48 ft. by 28 ft.; find the area of a square which has the same perimeter as
the rectangle.
8. A stick 3 ft. long is placed upright on the ground, and its shadow is found to be 4 ft. 9 in. long';
find the length of the shadow of a pole which is 45 ft. high.
9. The distance between the centres of two circles, whose radii are R and r, is D; find the lengths
of their common tangents.
10. The radius of a circle is divided into six equal parts, and at the five points of division straight lines are drawn at right angles to the radius to meet the circumference; find the lengths of these straight lines in inches to 3 decimal places, that of the radius being one foot.
CLASS L-GENERAL INTELLIGENCE.
9-12.
1. Name the chief lines of steamers that leave Hongkong, state to what countries they go, and in
the case of the Mail steamers give the general routes.
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