1.
Various
machine tools ____ by electric motors of different types.
a)
driven b) has been driven c) are driven d)
drive
2.
These
data ____ now.
a)
are
computing b) being computed c)
were computing d) are being computed
3.
If
the circuit ____ reliable, the machine would find a wider application.
a)
will
be b) is c)
being d) were
4.
Giant
motors are known ____ innumerable operations wherever required.
a)
to
perform b) performed c)
perform d) performing
5.
Voltmeters
____ at student’s laboratory work.
a)
used b) will be used c) will used d) will use