A Group A atmosphere contains ____.

A. hydrogen
B. 2-butanol
C. butadiene
D. acetylene


Answer: D

Trades & Technology

You might also like to view...

The solenoid coil of a 4-way valve operates a ____ that is used to operate the main valve.

a. plug valve b. pilot valve c. piston valve d. rotary valve

Trades & Technology

The indirect cause of an accident is known as a _____.

a. Level I cause b. Level II cause c. Level III cause d. Level IV cause

Trades & Technology

You find that the CEC of a sandy loam soil at pH 5.0 is 8 cmolc/kg and at pH 8.2 it is 14 cmolc/kg. What is the most likely reason for this difference?

A) removal of Al atoms from tetrahedral layers at low pH B) ionization of carboxyl and phenolic groups to release H+ ions C) removal of Al3+ ions from the exchange complex at higher pH D) replacement of trivalent Al3+ ions with divalent Ca2+ ions at high pH E) increase in the pH-dependent charges on 1:1 type silicate clays

Trades & Technology

List three of the seven tasks the 802.15.4 MAC layer is responsible for.

What will be an ideal response?

Trades & Technology