Democracy Index 2018 published by The Economist ranked _____ at 1st place?

A. Denmark
B. Iceland
C. Norway
D. Sweden

A bolt___________________?

A. Has a head on one end and a nut fitted to the other
B. Has head at one end and other end fits into a tapped hole in the other part to be joined
C. Has both the ends threaded
D. Is provided with pointed threads

If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?

A. Lovz
B. 10vztol5vd
C. 15vdto20vz
D. 20vdto30vd

The following type of nut is used with alien bolt____________________?

A. alien nut
B. hexagonal nut
C. slotted nut
D. castle nut

Shear stress theory is applicable for____________________?

A. Ductile fnaterials
B. Brittle materials
C. Elastic materials
D. All of the above

For applications involving high stresses in one direction only the following type of thread would be best suited______________________?

A. Iso metric thread
B. Acme thread
C. Square thread
D. Buttress thread

The function of a washer is to___________________?

A. Provide cushioning effect
B. Provide bearing area
C. Absorb shocks and vibrations
D. Provide smooth surface in place of rough surface

Ball bearing type screws are found in following application_____________________?

A. Screw jack
B. Aeroplane engines
C. Crane
D. Steering mechanism

An alien bolt is___________________?

A. Self locking bolt
B. Same as stud
C. Provided with hexagonal depression in head
D. Used in high speed components

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 be-tween parts
D. Similar to stud