Related Questions

Which of the following statement is correct regarding power screws?
A The efficiency of a self locking screw can not be more than 50%
B The efficiency of Acme (trapezoidal) thread is less than that of a square thread
C If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50%
D Both (A) and (B)
কোনো খেলার সরাসরি সম্প্রচারের ডেটা ট্রান্সমিট হবার প্রক্রিয়া- (i) Broadcast Transmission (ii) Duplex Transmission (iii) Simplex Mode Transmission নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i ii ও iii
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
Ball bearing type screws are found in following application
A Screw jack
B Aeroplane engines
C Crane
D Steering mechanism
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 major purpose of an electronically controlled automatic transmission is that this type of transmission
A Eliminates gear clutches
B Eliminates the gear shaft lever
C Reduces the number of automatic transmission components
D Reduces shift shock and achieves more efficient transmission of engine torque
In radio transmission, the medium of transmission is ___________
A Space
B An antenna
C Cable
D None of the above

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