Because they produce motion and force in a straight line, _____ are called linear actuators
a. pistons
b. cylinders
c. motors
d. pumps
b
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The compressive strength of concrete is generally measured
A) 14 days after casting the concrete in a test specimen. B) 1 day after casting the concrete in a test specimen. C) when the concrete is fresh. D) 28 days after casting the concrete in a test specimen. E) 7 days after casting the concrete in a test specimen.
Which component is used to monitor EGR system operation on some vehicles by the EGR system readiness test?
A. EGR temperature sensor B. mass air flow sensor C. engine coolant temperature sensor D. intake air temperature sensor
Elevations should never be drawn at full scale in model space.
Answer the following statement true (T) or false (F)
Match each item with a statement below.
A. allows the master in a piconet to change the hopping sequence B. makes it possible for Bluetooth radio manufacturers to add a second radio that uses 802.11 C. An error-correction scheme that continuously retransmits until an acknowledgment is received D. process of establishing a relationship between endpoints in a ZigBee network E. reserved period for critical devices to transmit priority data F. process that enables a Bluetooth device to discover which other Bluetooth devices are in range G. a code composed of a subset of the data, the length of the data, and the symmetric key H. a sublayer of the IEEE Project 802 data link layer I. a security service available in 802.15.4 J. a mechanism for managing transmissions in a piconet