7000+ Materials Science Questions and Answers Pdf - 2

Question: 6

In a Schottky diode junction is formed between

(A) Two type of metals

(B) Metal and semiconductor

(C) Two type of semiconductors

(D) None of the above

Question: 7

Which semiconductor device acts like a diode and two transistor?

(A) TRIAC

(B) SCR

(C) DIAC

(D) UJT

Question: 8

A cycloconverter power electronic equipment is a

(A) Frequency converter which has no intermediate dc state

(B) Device which converts ac to dc

(C) Device which converts dc to ac

(D) None of the above

Question: 9

The highest integer that can be stored in n 8 bit accumulator is

(A) 64

(B) 144

(C) 255

(D) 256

Question: 10

Which of the data transfer is not possible in microprocessor

(A) I/O device to accumulator

(B) Memory to memory

(C) Accumulator to memory

(D) Memory to accumulator