Question 1. They were requested not to quarrel with others. Which one of the following options is the closest in meaning to the word quarrel?
make out
call out
dig out
fall out
Explanation:-
Answer: Option D. -> fall out
-NA-
Question 2. In the summer of 2012, in New Delhi, the mean temperature of Monday to Wednesday was 41°C and of Tuesday to Thursday was 43°C. If the temperature on Thursday was 15% higher than that of Monday, then the temperature in °C on Thursday was
40
43
46
49
Explanation:-
Answer: Option C. -> 46
-NA-
Question 3. Complete the sentence: Dare _______________ mistakes.
commit
to commit
committed
committing
Explanation:-
Answer: Option A. -> commit
-NA-
Question 4. A continuous random variable X has a probability density function f(x) = e-x , 0 < x < ∞. Then P{X > 1} is
0.368
0.5
0.632
1.0
Explanation:-
Answer: Option A. -> 0.368
-NA-
Question 5. The curl of the gradient of the scalar field defined by V = 2x2y + 3y2z + 4z2x is
4xyax + 6yzay + 8zxaz
4ax + 6ay + 8az
(4xy + 4z2)ax + (2x2 + 6yz)ay +
(3y2 + 8zx)az
0
Explanation:-
Answer: Option D. -> 0
-NA-
Question 6. Leakage flux in an induction motor is
flux that leaks through the machine
flux that links both stator and rotor windings
flux that links none of the windings
flux that links the stator winding or the rotor winding but not both
Explanation:-
Answer: Option D. -> flux that links the stator winding or the rotor winding but not both
-NA-
Question 7. Square roots of -i , where i = √-1, are
i, -i
cos(-Ï€/4) + i sin(-Ï€/4), cos(3Ï€/4) + i sin(3Ï€/4)
cos(Ï€/4) + i sin(3Ï€/4), cos(3Ï€/4) + i sin(Ï€/4)
cos(3Ï€/4) + i sin(-3Ï€/4), cos(-3Ï€/4) + i sin(3Ï€/4)
Explanation:-
Answer: Option B. -> cos(-Ï€/4) + i sin(-Ï€/4), cos(3Ï€/4) + i sin(3Ï€/4)
-NA-
Question 8. Given a vector field F = y2xax - yzay - x2az, the line integral ∫F. d 1 evaluated along a segment on the x-axis from x =1 to x = 2 is
"“2.33
0
2.33
7
Explanation:-
Answer: Option B. -> 0
-NA-
Question 9. A 4-pole induction motor, supplied by a slightly unbalanced three-phase 50 Hz source, is rotating at 1440 rpm. The electrical frequency in Hz of the induced negative sequence current in the rotor is
100
98
52
48
Explanation:-
Answer: Option B. -> 98
-NA-
Question 10. Two magnetically uncoupled inductive coils have Q factors q1 and q2 at the chosen operating frequency. Their respective resistances are R1 and R2. When connected in series, their effective Q factor at the same operating frequency is