Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
C
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Who is hailed as the Father of the Green Revolution?
a. Modadugu Gupta c. He Kang b. Monty Jones d. Norman Borlaug
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After being energized, what type of function could a typical relay with normally closed contacts directly
perform? a. De-energize a crankcase heater b. Energize an inducer motor c. Start a compressor d. Complete a circuit to a motor start winding
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What type of ladders may be used in a trench?
A. wooden stepladders B. metal extension ladders C. straight ladders D. any OSHA certified ladders
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