⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs471
Diesel Cycle is also known as : __________?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
AConstant temperature cycle
BConstant Volume cycle
CConstant Pressure Cycle
DAll of above
472
What is the weight (in lbf) of one gallon of air at 1 atm and 25˚C? The molecular mass of air is 28.97 g/mole = 0.02897 kg/mole
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
A90 lbf
B65.78 lbf
C0.00989 lbf
D3.00989 lbf
473
In the lever of third order, load W, effort P and fulcrum F are oriented as follows_________________?
AW between P and F
BF between W and P
CP between W and F
DW, P and F all on one side E. none of the above
474
Atmospheric pressure is equal to____________?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
A1.013 bar
B760mm of Hg
C101.3KN/m2
DAll of these
475
What is the most common valve used in piping systems to throttle or regulate flow ?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
AGlobe valve
BGate valve
CButterfly valve
DPlug valve
476
Ball valves are commonly used to_________?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
Athrottle flow
Bcheck flow
Cchange flow direction
Dstart/stop flow
477
Which tool is used to measure gap size in a rough alignment?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
AInside caliper
BDial indicator
CFeeler gage
DMeasuring tape
478
The part of the coupling that actually transmits power and rotation from one shaft to the other shaft is_________?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
Agap
Bhub
Ckey
Ddriver
479
The stress developed in a material at breaking point in extension is called__________?
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
ABreaking stress
BFracture stress
CYield point stress
DProof stress
480
The patrol is distilled at a temperature from :
⚙️Mechanical EngineeringBy: Faheem Zaman Dhaunroo
A6° to 20°
B220° to 345°
C65° to 220°
D15° to 120°