Give at least three examples of mobile sources of outdoor air pollution.
What will be an ideal response?
cars, buses, trucks, planes, trains.
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Which of the following defines piston swept volume?
A. Cylinder volume with piston at BDC B. Cylinder volume with piston at TDC C. Volume displaced by piston through its stroke D. Volume of the piston assembly
Technician A says that the pressure cap can raise the boiling temperature of the coolant. Technician B says that the small valve in the center of the radiator cap is the vacuum valve. Who is right?
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
The speed of a three-phase squirrel cage induction motor is controlled by the frequency of the applied voltage and _____.
a. voltage dropping resistors b. the number of poles c. full-load torque d. armature current
Power tools require greater safety measures than hand tools.
Answer the following statement true (T) or false (F)