curve of different radius with the curves in the same directions (or compound curve.) Also with the curve in different directions or

reverse curve.

8. How do you ascertain whether a transit is in adjustment? If out of adjustment, how do you adjust it?

9. How do you ascertain whether a level is in adjustment? If out of adjustment, how do you adjust it?

10. Describe a transit vernier and its action.

11. Describe the leveling rod.

F.

ASSISTANT ENGINEERS.

The work of computations must be shown.

In case you do not remember the formula you desire to use in solving any problem, name the authority or work you would use in each case and state the method of solving the problem.

Books of tables are furnished by the board for the use of candidates. No other books are to be used.

1. If a brick measures 84 inches × 4 inches × 2 inches, how many bricks would be contained in 18 cubic yards of wall, with the space allowed for mortar?

2. What is an exponent?

3. What does a negative exponent denote?

4. What does a fractional exponent denote?

5. What is the value of any quantity which has zero for its exponent?

D

6. Find value of y in following equation: y+15=y2-15.

7. How would you determine the value of D in the formula

3.6

-Va 5.4 where a= = 100. Give the value of D.

8. If 75 men have been engaged 10 days upon a certain piece of work and it is found that only 20 per cent of the work is completed, how many men working at the same rate must be put on to complete the whole work in 20 additional days?

9. A train leaves Albany at 2.40 P. M.; arrives at New York at 7 P. M.; stops at Poughkeepsie 10 minutes; otherwise runs at uniform speed without stop. Another train leaves New York at 6.30 P. M.; arrives at Albany at 7.30 P. M.; stops at Poughkeepsie 10 minutes; otherwise runs at uniform speed without stop. Distance between New York and Albany 145 miles. Call Poughkeepsie exactly half way. At what time, to nearest second, do the trains meet, and at what distance from New York?

10. A and B together can perform a certain piece of work in 8 days; A and C together can do it in 9 days; B and C together can do it in 10 days. How many days will each of them require to perform the same work alone?

11. How long will it take to do the work if A, B and C all work together?

12. The diameter of a circle is 11 feet 7 inches. What is the length of the circumference? What is the area of the circle?

G.

ASSISTANT ENGINEERS.

The work of computations must be shown.

In case you do not remember the formula you desire to use in solving any problem, name the authority or work you would use in each case and state the method of solving the problem.

Books of tables are furnished by the board for the use of candidates. No other books are to be used.

1. A girder of uniform x section 30 feet long and weighing 600 pounds is supported at both ends, and sustains a weight of 500 pounds placed 7 feet from one end. What is the weight on each support?

2. Why is a joist 12" x 4" stronger when placed with the greatest dimensions vertical than when the smaller dimension is vertical, and what is the ratio of its strength in the two positions.

3. Make a strain sheet for a simple truss 50 feet long and 10 feet high, having 5 panels, assuming a uniform dead load of 500 pounds per lineal foot and uniform moving load of 1000 pounds per lineal foot.

4. Compute the moment of inertia of a rectangular beam 15 inches high and 5 inches thick.

H.

ASSISTANT ENGINEERS.

The work of computations must be shown.

In case you do not remember the formula you desire to use in solving any problem, name the authority or work you would use in each case and state the method of solving the problem.

9 Books of tables are furnished by the board for the use of candidates. No other books are to be used.

1. Express graphically the total pressure exerted by a body of water upon a vertical surface of the width a and height h; also the

intensity of the pressure at the point x at a distance h1 from the surface of the water.

2. Suppose an aqueduct of a canal seven feet deep to consist of a timber trunk having a clear span between abutments of twenty-six feet, having its floor supported by rectangular wooden beams eight inches broad and placed one foot apart, center to center. What should the depth of these beams be if the maximum stress allowable in the timber is 1,000 pounds per square inch and neglecting the weight of the floor?

3. Suppose the side of this aqueduct to be supported at the top by a plate or beam twelve inches deep, with its upper surface at the surface of the water. What must its breadth be to resist the water pressure, assuming the same allowable stress as before?

4. Suppose the side pressure in this aqueduct to be transferred to the above described plate, and to the bottom sill by vertical wooden posts three feet apart, center to center, and six inches wide on the face. What should be their width in the direction of the pressure, assuming the same allowable stress?

5. What should be the breadth of the bottom sill, supposing its depth fourteen inches and that it rests on the aqueduct bottom?

6. Suppose for the purpose of controlling the elevation of water in the level containing this aqueduct it is desirable to discharge through a gate in its side 100 cubic feet of water per second, and that the gate opening is three feet wide and has its lower edge fourteen inches above the aqueduct floor. What should be the depth of the opening to give the desired discharge?

EXAMPLE No. 5.

COMPETITIVE EXAMINATION FOR KEEPERS AND GUARDS IN THE STATE PRISONS, AND GUARDS AT THE ELMIRA REFORMATORY.

The exercise in dictation is the same as for clerkships of first and second grade; and handwriting and spelling are judged from this paper.

t

ARITHMETIC.

1. On January 1, 1888, 1111 prisoners were confined in Auburn, 760 at Clinton and 1425 at Sing Sing. How many in all?

2. In 1887 the total expenditures for the prisons of the State were $163,476.55; the total earnings were $132,059.82. What was the net cost of maintenance to the State?

$65

3. What will it cost the State to employ 25 guards for one year at per month?

4. Fifty-two convicts employed under contract earned at Auburn prison in one month $825.30. What was the average amount earned by each?

3. Report the number of.

1

CORRECT RESULTS:

WRITE ANSWER HERE.

EXAMPLE No. 6.

SPECIAL EXAMINATION.

ELECTRICAL EXPERT.

Board of Electrical Control, New York City.

What is your number in this examination?

State the experience and training you have had that led you to believe you are qualified for the position of electrical expert.

1. (a) What is induction?

(b) What would be the effect of an electric light circuit in action upon an all wire telephone circuit in which the advance and return wires were insulated from each other and twisted together?

2. Suppose you face the north pole of a permanent magnet and that you carry a conductor past this pole from a point above to a point below, in which direction will the current generated flow, and why?

3. How would you protect a mariner's compass from the effects of surrounding magnetic bodies?

4. (a) How does the passage of a current of electricity affect the resistance of a conductor made of platinum? How does it affect the resistance of a conductor made of carbon?

(b) State how this difference of effect is utilized in electric lighting.

5. Suppose we have three circuits, having a battery located in a common earth at a given point, and that the resistance of these circuits is 1000, 2000 and 3000 ohms respectively, what proportion of the current will pass through each circuit, supposing them earthed at distant stations?