13- Given two half adders, What extra two input gate is required to build a full adder?
A:- NOR gate
B:- XOR gate
C:- OR gate
D:- AND gate
14- What is the length of stack pointer
A:- 6 bits
B:- 8 bits
C:- 12 bits
D:- 16 bits
15- PUSH and POP operations are performed by
A:- Program counter register
B:- Stack pointer register
C:- General purpose register
D:- Link register
16- Bundled conductors in the transmission line will
A:- Reduce line loading
B:- Improve protection of line
C:- Improve steady state stability
D:- Reduce voltage buses at two ends
17- The corona effect can be minimized by increasing
A:- The length of the conductors
B:- Spacing between conductors
C:- Diameter of conductors
D:- Both (2) and (3)
18- For the protection of extra-high-voltage lines, a protective relay is
A:- Overcurrent with extremely inverse characteristics
B:- Percentage differential relay
C:- Reactance type distance relay
D:- Mho type distance relay
19- The power system is subjected to a fault that makes the current’s zero sequence component zero. The nature of the fault is
A:- Double line to ground fault
B:- Double line fault
C:- L-G fault
D:- Three phases to ground fault
20- With the use of high-speed CBs which among the following stability is increased
A:- Steady state stability
B:- Frequency stability
C:- Transient stability
D:- All of the above
21- A single phase fully controlled rectifier-fed DC motor can operate:
A:- Both forward motoring and reverse
B:- Reverse motoring mode only
C:- Forward braking mode
D:- Both reverse motoring and reverse braking mode
22- RC triggering is preferred over the R triggering circuit because it
A:- ensures lower gate dissipation
B:- provides a larger range of the triggering angle
C:- protects the device from getting damaged
D:- cause quick triggering
23- A TRIAC is a _________
A:- unidirectional current, bi-directional voltage blocking device
B:- bi-directional current, unidirectional voltage blocking device
C:- bi-directional current, bidirectional voltage blocking device
D:- unidirectional current, unidirectional voltage blocking device
24- For UJT to be used as a relaxation oscillator,
A:- its operating point is designed to be in the positive resistance/saturation region
B:- its cut-off point chosen to be in the cut-off region
C:- Its negative resistance region is avoided while choosing the operating point
D:- It is deliberately designed to operate in the negative resistance region
ANSWERS:
13-(C), 14-(D), 15-(B), 16-(C), 17-(D), 18-(D), 19-(B), 20-(C), 21-(A), 22-(B), 23-(C), 24-(D)