Q1. auxiliary memory is
(A) memory slot
(B) extended memory
(C) secondary memory
(D) cache memory
Answer: secondary memory
Explanation:
Q2. control memory adress register is present in
(A) ALU
(B) REGISER UNIT
(C) CU
(D) DISK CONTROL INTERFACE UNIT
Answer: CU
Explanation:
Q3. PSEUDO INSTRUCTIONS ARE
(A) assembler directives
(B) instructions for catching
(C) instructions for partially executed
(D) instructions in any program that have no corresponding machine code instruction
Answer: assembler directives
Explanation:
Q4. which of the device should get higher priority in assigning interrupts
(A) hard disk
(B) printer
(C) floppy disk
(D) keyboard
Answer: keyboard
Explanation:
Q5. associative memory is a
(A) pointer addressble memory
(B) cheap memory
(C) CAM
(D) slow memory
Answer: CAM
Explanation:
Q6. KVL is concerned with
(A) IR drops
(B) battery emfs
(C) both
(D) none
Answer: both
Explanation:
Q7. rating of fuse wire expressed in
(A) volts
(B) amps
(C) amp-volts
(D) none
Answer: amps
Explanation:
Q8. the insulation on a current carrying conductor is provided to prevent
(A) shock
(B) current leakage
(C) both
(D) none
Answer: both
Explanation:
Q9. number of bits needed to address 4K memory
(A) 6
(B) 8
(C) 12
(D) 16
Answer: 12
Explanation:
Q10. cells commonly used as standard cells are
(A) dry cell
(B) solar cell
(C) mercury cadmium cells
(D) zinc carbon cells
Answer: mercury cadmium cells
Explanation:
Q11. which of the following devices can be turned ON or OFF by applying gate signal
(A) SCR
(B) GTO
(C) TRIAC
(D) UJT
Answer: GTO
Explanation: A gate turn-off thyristor (GTO) is a special type of thyristor, which is a high-power semiconductor device. GTO are fully controllable switches which can be turned on and off by their third lead.
Q12. for octal system radix is
(A) 2
(B) 4
(C) 8
(D) 10
Answer: 8
Explanation:
Q13. the function of transformer is
(A) to decrease ac voltage
(B) to change ac voltage
(C) increase or decrease voltage
(D) none
Answer: increase or decrease voltage
Explanation:
Q14. The specific gravity of lead acid battery is
(A) 1.2
(B) 2.2
(C) 2.5
(D) 3.2
Answer: 1.2
Explanation: Aluminum 2.72 Brass 8.48 Cadmium 8.57 Chromium 7.03
Q15. In Induction motor the slip ranges from
(A) 0 to 1
(B) -1 to -1
(C) 1 to10
(D) 1 to 5
Answer: 0 to 1
Explanation:
Q16. The power factor of arc in circuit breaker is
(A) 1
(B) 0.5
(C) 0
(D) greater than 0.5
Answer: 1
Explanation:
Q17. The most popular Circuit Breaker technique employs
(A) Air
(B) Vaccum
(C) SF6
(D) Bulk Oil
Answer: SF6
Explanation: During opening of current carrying contacts in a circuit breaker the medium in between opening contacts become highly ionized through which the interrupting current gets low resistive path and continues to flow through this path even the contacts are physically separated. During the flowing of current from one contact to other the path becomes so heated that it glows. This is called arc.
Q18. The characteristic impedance of a coaxial cable is
(A) 50 ohm
(B) 100 ohm
(C) 150 ohm
(D) 200 ohm
Answer: 50 ohm
Explanation:
Q19. The working function of a coaxial cable is similar to that of
(A) Band Reject Filter
(B) LPF
(C) HPF
(D) BPF
Answer: LPF
Explanation:
Q20. The IF frequency of FM modulation is
(A) 100.7 KHz
(B) 108 Mhz
(C) 88 MHz
(D) 10.7MHz
Answer: 10.7MHz
Explanation:
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