Why does pulse dispersion have a major impact on the speed and bandwidth of a fiber optic system? its effect on the transmission time of the information its effect on the insertion loss at the emitter its effect on the reflective ability of an optical fiber core its effect on the receiver sensitivity

When practicing welding, reuse weld coupons until __ A all surfaces have been welded on B they cannot be cut apart C they are needed for a job D they are burned

Special certification is required for technicians who handle which of the following systems? Select one: a. Refrigerants and AC systems b. Computer -controlled systems c. Automatic transmission systems d. Engine management systems

Low density vapors entering The compressor will mean low refrigerant flow through the compressor. True False

A suction line accumulator is used to ensure that liquid refrigerant enters the compressor. True False

2) If your engine begins to lose power, run rough, stall, or refuse to start when traveling at high altitudes, your vehicle may be suffering from __ a) vapor lock b) low altitude problems c) overheating d) cold weather

High pressure in the crankcase forces fuel mixture into the intake port A Two-stroke B Four-stroke

According to ABYC circuit protection for most electrical devices must be installed within __ of a distribution load. 40in 4ft 6ft 10ft No circuit protection

Technician A says that EUPs are mechanically-actuated by a cylinder block mounted camshaft. Technician B says that SMART injectors supplied by high pressure lines are used on current EUP fuel systems. Who is correct? Technician A only Technician B only Both A and B Neither Anor B

If you make modifications that could affect the safe operation or capacity of a forklift your employer must: Select all that apply. Include the modification in the printed operating instructions. Change the affected characteristics on the unit's data plate. Sketch your design and formally propose the modifications to to day your supervisor. Get approval in writing by the equipment manufacturer.

True or False? Personal fall protection systems typically include a safety net secured under the work platform of a scaffold.