Related Questions

Screws used for power transmission should have
A low efficiency
B high efficiency
C very fine threads
D strong teeth
Ball bearing type screws are found in following application
A Screw jack
B Aeroplane engines
C Crane
D Steering mechanism
Set screws are
A Similar to small size tap bolts except that a greater variety of shapes of heads are available
B Slotted for a screw driver and generally used with a nut
C Used to prevent relative motion between parts
D Similar to stud
Machine screws are
A Similar to small size tap bolts except that a greater variety of shapes of heads are available
B Slotted for a screw driver and generally used with a nut
C Used to prevent relative motion between two parts
D Similar to stud
Cap screws are
A Similar to small size tap bolts except that a greater variety of shapes of heads are available
B Slotted for a screw driver and generally used with a nut
C Used to prevent relative motion between parts
D Provided with detachable caps
Screws are specified by their __________ diameters.
A Minor
B Major
C Pitch
D None of these
Of the 65 cars on a car lot, 45 have air conditioning, 30 have power windows, and 12 have both air conditioning and power windows. how many of the cars on the lot have neither air conditioning nor power windows?
A 2
B 8
C 12
D 18
The power factor indicates how much of the apparent power is reactive power.
A True
B False
The power factor (PF) indicates how much of the apparent power is true power.
A True
B False
A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
A remain same
B go down
C improve
D none of the above

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