Mechanical Engineering Archives

461. Two shafts ‘A’ and ‘B’ have the same material. The shaft ‘A’ is solid of diameter 100 mm. The shaft ‘B’ is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft ‘B’ is __________ as that of shaft ‘A’.

1-Jun

1-Aug

1-Apr

15/16

✅ The correct answer is option D.

462. When slack of an activity is zero, the activity is critical and any delay in its performance will delay the completion of the whole project.

Yes

✅ The correct answer is option A.

463. According to Euler’s column theory, the crippling load for a column length (l) hinged at both ends, is

✅ The correct answer is option A.

464. Bronze is an alloy of

copper and zinc

copper and tin

copper, tin and zinc

none of these

✅ The correct answer is option B.

465. A tensile test is performed on a round bar. After fracture, it has been found that the diameter remains approximately same at fracture. The material under test was

mild steel

cast iron

glass

copper

✅ The correct answer is option B.

466. De-Laval turbine is a

simple impulse turbine

simple reaction turbine

impulse-reaction turbine

none of these

✅ The correct answer is option A.

467. The diaphragm moulding machine is used to

ram the sand harder at the pattern face with decreasing hardness towards the back of the mould

ram the sand harder at the back of the mould and softer on the pattern face

produce uniform packing of sand in the mould

give uniform sand hard

✅ The correct answer is option D.

468. A venturiflume is used to measure

pressure of liquid

discharge of liquid

pressure difference between two points in a channel

pressure difference be

✅ The correct answer is option B.

469. The cutting speed is zero at the periphery and it is maximum at the centre of the drill.

Yes

✅ The correct answer is option B.

470. Solid fuel fabricated into various small shapes, which are assembled to form fuel elements, is in the form of

plates

pallets

pins

all of these

✅ The correct answer is option D.