Electrical Online Test 14
Category –EE Online Test
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Attempt Free Electrical Online Test 14 Here. Read The Important Electrical MCQ From Below.
1) What are level triggering interrupts
a. RST 6.5 AND RST 5.5
b. RST 7.5 AND RST 6.5
c. RST 5.5 AND RST 7.5
d. INTR and TRAP
Ans. a. RST 6.5 AND RST 5.5
2) Which of the following is a hardware interrupt
a. RST 5.5,TST 6.5,RST 7.5
b. INTR,TRAP
c. TRAP
d. ALL
Ans. d. ALL
3) Which interrupt is not level sensitive in 8085 ?
a. RST 6.5 is a raising edge-triggering interrupt
b. RST 7.5 is raising edge-triggering interrupt
c. Both
d. None
Ans. b. RST 7.5 is raising edge-triggering interrupt
4) Which Processor structure is pipelined ?
a. all x80 processor
b. All x85 processor
c. all X86processor
d. Pentium
Ans. c. all X86processor
5) Which stack in 8085?
a. FIFO
b. LIFO
c. FILO
d. LILO
Ans. b. LIFO
Electrical Online Test 14
6) Why 8085 processor is called an 8 bit processor?
a. Because it has 8 bit ALU
b. Because it has 8 bit data bus
c. Both
d. None
Ans. a. Because it has 8 bit ALU
7) Address line for RST 3 is
a. 0020H
b. 0020H
c. 0018H
d. 0038H
Ans. c. 0018H
8) BHE of 8086 microprocessor signal is used to interface the
a. even bank memory
b. Odd bank memory
c. I/O
d. DMA
Ans. b. Odd bank memory
9) In 8086 the following has the highest priority among all interrupts
a. NMI
b. DIV 0
c. TYPE 255
d. OVER FLOW
Ans. a. NMI
10) In 8085,example of non maskable interrupts are
a. TRAP
b. RST 6.5
c. INTR
d. RST 5.5
Ans. a. TRAP
Electrical Online Test 14
11) Which is non vector interrupt
a. INTR
b. TRAP
c. RST7.5
d. RST6.5
Ans. a. INTR
12) Address line for TRAP is
a. 0023H
b. 0024H
c. 0033H
d. 0034H
Ans. b. 0024H
13) In 8086 the overflow flag is set when
a. The sum is more than 16 bit
b. Single digit numbers go out of their range after an arithmetic operation
c. Carry & Sign flag are set
d. Zero flag is set
Ans. b. Single digit numbers go out of their range after an arithmetic operation
Electrical Online Test 14
14) IN 8086 microprocessor one of the following statements is not true
a. Coprocessor is interfaced in MAX mode
b. Coprocessor is interfaced in MIN mode
c. I/O can be interfaced in MAX/MIN mode
d. Supports pipe lining
Ans. b. Coprocessor is interfaced in MIN mode
15) Whai is software interrupt?
a. RST 0-7
b. RST 5.5
c. INTR
d. TRAP
Ans. b. RST 5.5
16) What is meant by Mask able interrupts?
a. An interrupt which can never turned off
b. An interrupt that can be turned off by the programmer
c. Both
d. None
Ans. b. An interrupt that can be turned off by the programmer
17) What is RST for the TRAP
a. RST 5.5
b. RST 4.5
c. RST 4
d. RST 5
Ans. b. RST 4.5
Electrical Online Test 14
18) Can ROM be used as stack?
a. Yes
b. No
c. Some times yes
d. Some times no
Ans. b. No
19) 8088 differs 8086 in
a. Data width on the output
b. supports of co processor
c. address capability
d. Supports of max/min code
Ans. a. Data width on the output
20) In 8086, Example for Non mask able interrupts are
a. TRAP
b. RST 6.5
c. INTR
d. RST 5.5
Ans. a. TRAP
21) Access time is faster for
a. ROM
b. SRAM
c. DRAM
d. EPROM
Ans. b. SRAM
Electrical Online Test 14
22) What is SIM
a. Select interrupt mask
b. Sorting interrupt mask
c. Set interrupt mask
d. Softer interrupt mask
Ans. c. Set interrupt mask
23) The advantage of memory mapped i/o over i/o mapped i/o is
a. Faster
b. Many instructions supporting memory mapped i/o
c. Require a bigger address decoder
d. ALL OF ABOVE
Ans. d. ALL OF ABOVE
24) RIM is used to check whether??..?
a. The write operation is done or not
b. The interrupt is masked or not
c. The read operation is done or not
d. ALL
Ans. b. The interrupt is masked or not
25) What does mp speed depends on
a. Clock
b. Data bus width
c. address bus width
d. Size of register
Ans. c. address bus width
Electrical Online Test 14
