IOT and applications (3160716) MCQs

MCQs of Sensors, Microcontrollers, and their Interfacing

Showing 31 to 40 out of 43 Questions
1 2 3 4 5
31.

There is provision of taking ______ number of external interrupts in Arduino

(a)

0
(b)

1
(c)

2
(d)

3
Answer:

Option (c)

32.

The SCL and SDA pins in Arduino is configured on 

(a)

A5 and A4 respectively
(b)

A4 and A5 respectively
(c)

A0 and A1 respectively
(d)

A1 and A0 respectively
Answer:

Option (a)

33.

How many bytes of user accessable memory available in 8051 family microcontroller?

(a)

64
(b)

128
(c)

256
(d)

512
Answer:

Option (b)

34.

How many SFRs are available in 8051 family microcntroller?

(a)

15
(b)

18
(c)

21
(d)

25
Answer:

Option (c)

35.

8051 has _________ locations with bit addressable facility.

(a)

16
(b)

32
(c)

64
(d)

80
Answer:

Option (a)

36.

8051 has _______ bytes RAM area for general purpose storage.

(a)

10
(b)

20
(c)

40
(d)

80
Answer:

Option (d)

37.

Bit 5 in PSW register is 

(a)

Cy
(b)

F0
(c)

AC
(d)

OV
Answer:

Option (b)

38.

The address of IE register in 8051 is ___________

(a)

A8h
(b)

B8h
(c)

C8h
(d)

D8h
Answer:

Option (a)

39.

The address of SBUF register in 8051 is ____________

(a)

98h
(b)

99h
(c)

9Ah
(d)

9Bh
Answer:

Option (b)

40.

ARM has _________ number of general purpose registers.

(a)

10
(b)

11
(c)

12
(d)

13
Answer:

Option (d)

Showing 31 to 40 out of 43 Questions
1 2 3 4 5