The Gunner's Examiner

by Harold E. Cloke

Q. What is the voltage of each?

A. 80-110 for the motor and about the same for the generator.

Q. What is the object of the casemate transformer?

A. To raise the voltage from about 80 to 500 alternating current.

Q. Describe the mine transformer.

A. This will be learned in the casemate.

Q. Explain what switches you would set on power panel for automatic firing, the board having been previously tested and found by the electrician to be in order.

A.

1^o Put D. C. on busses
{ (a) Close double-pole circuit-breaker
{ (storage-battery), or
{ (b) Close S. P. reverse current circuit-breaker
by { and switch No. 2 to the right (post power), or
{ (c) Close S. P. reverse current circuit-breaker
{ and switch No. 2 to the left (casemate
{ generator).

2^o Read voltage by plugging in proper receptacle.

3^o Close switch No. 3 up.

4^o " " " 4 " (or down).
5^o " " " 9 " ( " " ).

6^o Read A. C. voltage by plugging in proper receptacle.

8^o Close switch No. 8 up.