Mechanical Engineering MCQs

Page No. 91

Which of the following pipe joints would be suitable for pipes carrying steam_____________?


aflanged

✖


bthreaded

✖


cbell and spigot

✖


dexpansion

✓


View Answer expansion

The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for_________________?


areducing stress concentration

✖


bease of manufacture

✖


csafety

✖


dfullering and caulking

✓



When a nut is tightened by plaping a washer below it, the bolt will be subjected to following type of loads___________________?


acompression

✖


btension

✓


cshear

✖


dcombined loads

✖


View Answer tension

The shear plane in case of bolts should_________________?


abe across threaded portion of shank

✖


bbe parallel to axis of bolt

✖


cbe normal to threaded portion of shank

✖


dnever be across the threaded portion

✓



The strap end of a connecting rod of steam engine is joined by_________________?


agib of cotter joint

✓


bsleeve and cotter joint

✖


cspigot socket cotter joint

✖


dknuckle joint

✖


View Answer gib of cotter joint

In order to permit the thermal expansion/contraction of tubing, it should be______________?


acrimped

✖


bhoned

✖


cflared

✖


dbent

✓


View Answer bent

Silver-based solder is used for__________________?


aflaring

✖


bbrazing

✓


csoft soldering

✖


dfusion welding

✖


View Answer brazing

Taper on the cotter and slot is provided_________________?


aon both the sides

✖


bon one side only

✓


con none of the sides

✖


dmay be provided anywhere

✖


View Answer on one side only

The valve rod in a steam engine is connected to an eccentric rod by_________________?


acotter joint

✖


bbolted joint

✖


ckunckle joint

✓


duniversal coupling

✖


View Answer kunckle joint

The draw of cotter need not exceed_________________?


a3 mm

✓


b5 mm

✖


c10 mm

✖


d20 mm

✖


View Answer 3 mm

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