Printer in which output is printed by the use of light

Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.

P _ _ S T _ Q R _ T _ Q _ _ T

Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.\

RRHHHHH, RHRHHHH, RHHRHHH, RHHHRHH, RHHHHRH, _____________.

Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.

Select the correct combination of the letters that when sequentially placed in the blanks of the given letter series will complete the series.

Which among the following set of letters can be placed in the gaps in the given alphabet series to follow a particular pattern?

Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.

Select the combination of letters that when placed sequentially in the blanks of the given letter series will complete the series.

Select the number combination of letters that when placed sequentially in the blanks of the given series will complete the series.

Select the correct combination of the letters that when sequentially placed in the blanks of the given letter series will complete the series.