A. walk
B. walks
C. walked
D. was walking
I was watching a TV program, when he __________ in. Read More »
English Mcqs, Fill in the blanks Mcqs A. taking our guests
B. guests to take
C. guests taking
D. to take our guests
We are planning __________ out to dinner tonight. Read More »
English Mcqs, Fill in the blanks Mcqs A. learn
B. for learning
C. to learn
D. learning
She took lessons __________ how to swim. Read More »
English Mcqs, Fill in the blanks Mcqs A. allows
B. allowed
C. let
D. permitted
The class teacher __________ Saba move to another chair. Read More »
English Mcqs, Fill in the blanks Mcqs A. to planning
B. to plan
C. plan
D. planning
He devotes much of his time __________ for the future. Read More »
English Mcqs, Fill in the blanks McqsThe current drawn by the armature of D.C. motor is directly proportional to__________?
A. the torque required
B. the speed of the motor
C. the voltage across the terminals
D. none of the above
The current drawn by the armature of D.C. motor is directly proportional to__________? Read More »
D.C. MotorsIn a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to
A. 100% of the previous value
B. 50% of the previous value
C. 25% of the previous value
D. 10% of the previous value
E. none of the above
The speed of a D.C. series motor is_____________?
A. proportional to the armature current
B. proportional to the square of the armature current
C. proportional to field current
D. inversely proportional to the armature current
The speed of a D.C. series motor is_____________? Read More »
D.C. MotorsThe starting resistance of a D.C. motor is generally_______________?
A. low
B. around 500 Q
C. 1000 Q
D. infinitely large
The starting resistance of a D.C. motor is generally_______________? Read More »
D.C. MotorsWhich of the following load normally needs starting torque more than the rated torque?
A. Blowers
B. Conveyors
C. Air compressors
D. Centrifugal pumps
Which of the following load normally needs starting torque more than the rated torque? Read More »
D.C. Motors