Which of the following is NOT part of an a.c generator?
Commutator
Armature
Field magnet
Carbon brushes
Slip rings
Correct answer is A
The general A.C. generator has all the listed components except the commutator.
200
1200
1600
2400
4800
Correct answer is C
No explanation has been provided for this answer.
1000 Nm
500 Nm
10 Nm
5 Nm
1.6 Nm
Correct answer is C
The moment (or torque) of a couple is calculated by multiplying the size of one of the force by the perpendicular distance between the two forces.
Given: F = 40N; d = 25cm = 0.25m
Moment = 40 x 0.25 = 10Nm.
0.75
0.88
0.95
1.13
1.33
Correct answer is A
No explanation has been provided for this answer.
The heat from a fire in a closed room reaches someone far away in the room, mainly by
reflection
diffusion
conduction
radiation
convection
Correct answer is D
No explanation has been provided for this answer.