BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
When using a ladder around electrical lines, the worker should _____.
A. Make sure the ladder has a good base
B. Use wooden stand-offs
C. Not use a metal ladder
D. Wrap the ladder in rags - ANSWERS-C. not use a metal ladder
What is capillary attraction when soldering or brazing?
A. When the filler metal flows away from the heat.
B. When the capillary lube is connected to the suction line.
C. When the filler metal flows towards the heat.
D. When hot fluid metal rises only to the top of the pipe. - ANSWERS-
C. When the filler metal flows towards the heat.
The purpose of a step-down transformer is to ________.
END OF
PAGE
1
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
A. Decrease secondary current
B. Increase the current for the control unit
C. Decrease secondary voltage
D. reduce voltage for control circuit safety - ANSWERS-C. Decreases
secondary voltage
Incomplete combustion results from a lack of _________.
A. Fuel
B. Oxygen
C. Carbon monoxide
D. Carbon dioxide - ANSWERS-B. Oxygen
A hydronic zone-control valve is actuated by ___________.
A. Temperature of water
END OF
PAGE
2
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
B. Circulator
C. Thermostat
D. Pressure of water - ANSWERS-A. Temperature of water
The rapid cooling of heated metal for the purpose of hardening the metal
is called __________.
A. Carbuizing
B. Spheroidizing
C. Annealing
D. Quenching - ANSWERS-D. Quenching
A cut-off parting operation is hazardous when work is turned ____.
A. In an independent chuck
B. A universal chuck
END OF
PAGE
3
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
C. In a collet
D. Between centers - ANSWERS-???
Find the feed rate of a 4-tooth cutter, using a 0.005 chip load, at a speed
of 200 RPM.
A. 2 inches per minute
B. 4 inches per minute
C. 6 inches per minute
D. 8 inches per minute
FR=RPM * T * CL
FR= the calculated feed rate in inches per minute or mm per minute.
RPM= calculated speed of the cutter
T= Number of teeth on the cutter
CL= The chip load or feed per tooth - ANSWERS-FR= 200 * 4 * 0.005
END OF
PAGE
4
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
When using a ladder around electrical lines, the worker should _____.
A. Make sure the ladder has a good base
B. Use wooden stand-offs
C. Not use a metal ladder
D. Wrap the ladder in rags - ANSWERS-C. not use a metal ladder
What is capillary attraction when soldering or brazing?
A. When the filler metal flows away from the heat.
B. When the capillary lube is connected to the suction line.
C. When the filler metal flows towards the heat.
D. When hot fluid metal rises only to the top of the pipe. - ANSWERS-
C. When the filler metal flows towards the heat.
The purpose of a step-down transformer is to ________.
END OF
PAGE
1
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
A. Decrease secondary current
B. Increase the current for the control unit
C. Decrease secondary voltage
D. reduce voltage for control circuit safety - ANSWERS-C. Decreases
secondary voltage
Incomplete combustion results from a lack of _________.
A. Fuel
B. Oxygen
C. Carbon monoxide
D. Carbon dioxide - ANSWERS-B. Oxygen
A hydronic zone-control valve is actuated by ___________.
A. Temperature of water
END OF
PAGE
2
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
B. Circulator
C. Thermostat
D. Pressure of water - ANSWERS-A. Temperature of water
The rapid cooling of heated metal for the purpose of hardening the metal
is called __________.
A. Carbuizing
B. Spheroidizing
C. Annealing
D. Quenching - ANSWERS-D. Quenching
A cut-off parting operation is hazardous when work is turned ____.
A. In an independent chuck
B. A universal chuck
END OF
PAGE
3
, BCTC INDUSTRIAL LATEST
MAINTENANCE
TECHNOLOGY
AMTEC (NOCTI
MECHATRONIC)
EXAM
C. In a collet
D. Between centers - ANSWERS-???
Find the feed rate of a 4-tooth cutter, using a 0.005 chip load, at a speed
of 200 RPM.
A. 2 inches per minute
B. 4 inches per minute
C. 6 inches per minute
D. 8 inches per minute
FR=RPM * T * CL
FR= the calculated feed rate in inches per minute or mm per minute.
RPM= calculated speed of the cutter
T= Number of teeth on the cutter
CL= The chip load or feed per tooth - ANSWERS-FR= 200 * 4 * 0.005
END OF
PAGE
4
