Newly placed conventional concrete must be kept moist for five to seven days so that it will _____.
a. cure
b. settle
c. mature
d. segregate
a. cure
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Technician A says that it is necessary to keep flat tappets in order if the old cam and lifters are to be used again. Technician B says that used roller tappets should not be installed on a new camshaft. Who is right?
A. Technician A only B. ?Technician B only C. Both A and B D. Neither A nor B
When testing a tandem drive axle truck on a double roller chassis dynamometer, what is the maximum acceptable road speed differential between the two drive axles?
A. 5 mph (8 kph) B. 8 mph (12 kph) C. 12 mph (20 kph) D. 20 mph (32 kph)
Large rooftop package AC units often use ________ to help draw in fresh air to meet code requirements and to cool if temperature and humidity permit
A) an economizer B) airflow C) enthalpy D) low pressure
Leaders should never be drawn horizontally or vertically
Indicate whether the statement is true or false