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Directions to Solve

Each sentences below consist of a word or a phrase which is bold. It is followed by four words or phrases. Select the word or pharse which is closes to the OPPOSITE in meaning of the bold word or phrase.

Q1: Many people try to resist reforms in the society.

A fight

B accept

C welcome

D repel

Q2:
By default, the data type of a constant without a decimal point is int, whereas the one with a decimal point is a double.

A Yes

B Yes

Q3: MOV A, @ R1 will:

A copy the contents of memory whose address is in R1 to the accumulator

B copy R1 to the accumulator

C copy the accumulator to the contents of memory whose address is in R1

D copy the accumulator to R1

Q4: A label is used to name a single line of code.

A False

B True

Q5: The following program will receive data from port 1, determine whether bit 2 is high, and then send the number FFH to port 3:
READ: MOV A,P1
ANL A,#2H
CJNE A,#02H,READ
MOV P3,#FFH

A True

B False

Q6: Device pins XTAL1 and XTAL2 for the 8051 are used for connections to an external oscillator or crystal.

A False

B True

Q7: When the 8051 is reset and the  line is HIGH, the program counter points to the first program instruction in the:

A external data memory

B internal code memory

C internal data memory

D external code memory

Q8: An alternate function of port pin P3.4 in the 8051 is:

A interrupt 0

B Timer 0

C interrupt 1

D Timer 1

Q9: Both registers TL0 and TL1 are needed to start Timer 0.

A False

B True

Q10: The I/O ports that are used as address and data for external memory are:

A ports 1 and 2

B ports 0 and 2

C ports 0 and 3

D ports 1 and 3