New Zealand Gazette – 1931 – No. 16

Page 498

✨ Examination Rules and Specimen Papers

EXAMINATION RESULTS.

All candidates should be informed of the results of examinations.

REPORTS OF EXAMINATIONS.

Reports of examinations, together with the candidates' applications, and all examination-papers should be sent to the Chief Examiner as soon as the examinations are finished.

APPENDICES.

APPENDIX A.—SPECIMEN SETS OF PAPERS AS SET AT EXAMINATIONS FOR CERTIFICATES OF COMPETENCY AS ENGINEER IN THE MERCANTILE MARINE.

EXAMINATION IN PRACTICAL MATHEMATICS.

THIRD CLASS.

Do not copy the questions, but be careful to work out the problems on the appropriate numbered pages of the answer-book.
Memoranda to be used in working the problems will be found on the first page of the answer-book.
Do not deface or make any remarks whatever on this paper.

A round steel tie rod 1½ in. diameter and 15 ft. long is stretched ⅛ in. under a steady load within the elastic range of the material. Find the load supported by the tie rod. (NOTE.—The modules of elasticity of steel is 30,000,000.)
Fresh water is pumped from a double-bottom tank to a service tank, the bottom of the latter being 50 ft above the top of the former. The service tank is 10 ft. long by 6 ft. wide by 5 ft. deep, and the area of the water-surface in the double-bottom tank, which is of uniform depth, is 600 square feet. If the double-bottom tank is full before pumping, find the work done in filling the service tank.
100 gallons of fresh feed-water are passed through a surface heater and thereby raised 60 degrees centigrade in temperature. How many British thermal units have been imparted to the feed-water?
A block of iron weighs 50 lb. in air and when immersed in salt water it is found to weigh 43 lb. What is the density of the water in ounces per gallon? (NOTE.—The specific gravity of iron is 7·5.)
The strength of the electric current conveyed by a copper conductor 500 yards long and ⅛ in. diameter is 200 amperes. What voltage is required to produce this current? (NOTE.—The resistance of a copper wire 74·1 yards long and 0·048 in. diameter is 1 ohm.)
A double-bottom fuel-tank 50 ft. long, 20 ft. wide, and 3 ft. deep is filled with oil-fuel. What is the total pressure in tons on the bottom of the tank if the oil rises to the top of the air-pipe, which is 27 ft. above the top of the tank, when the tank is being filled. (The bore of the air-pipe is 4 in. and the specific gravity of the oil 0·9.)

SECOND CLASS.

First Paper.

Do not copy the questions, but be careful to work the problems on the appropriate numbered pages of the answer-book.
Memoranda to be used in working the problems will be found on the first page of the answer-book.
Do not deface or make any marks whatever on this paper.

The following six questions are for both Ordinary and Motor Examination.

The maximum turning-moment on a crank shaft is 75,000 foot pounds, the mean turning-moment being two-thirds of the maximum. If the shaft runs at eighty revolutions per minute, what is the horse-power transmitted by it?

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VUW Te Waharoa — NZ Gazette 1931, No 16

NZLII — NZ Gazette 1931, No 16

The General Assembly Library (on the right) was completed in 1899 and survived the 1907 fire. Now the oldest remaining original Parliament building, still used as the Parliamentary Library.

✨ LLM interpretation of page content

🚂 Amending Rules for the Examination of Engineers in the Mercantile Marine (continued from previous page)

Domain🚂 Transport & Communications
Dated26 February 1931
KeywordsMarine Engineers, Examination Rules, Shipping Regulations, Certificates of Competency, Workshop Service, Technical Institutions

🎓 Examination Results Notification

Domain🎓 Education, Culture & Science
KeywordsExamination Results, Notification, Candidates

🎓 Reports of Examinations Submission

Domain🎓 Education, Culture & Science
KeywordsExamination Reports, Submission, Chief Examiner

🚂 Specimen Examination Papers for Marine Engineers

Domain🚂 Transport & Communications
KeywordsMarine Engineers, Examination Papers, Practical Mathematics, Certificates of Competency

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