4

# The bending moment at a point on a beam is the algebraic ________ of all the moments on either side of the point.

Sum

Difference

Multiplication

None of the above

A. Sum

4

# Which of the following is an irreversible cycle?

Carnot

Stirling

Ericsson

None of the above

4

4

2.1 × 10⁵ kg/cm²

2.1 × 10⁶ kg/cm²

2.1 × 10⁷ kg/cm²

0.1 × 10⁶ kg/cm²

4

0°C

273°C

273 K

None of these

4

# The layer at the centre of gravity of the beam as shown in the below figure, will be

In tension

In compression

Neither in tension nor in compression

None of these

4

-100 MPa

250 MPa

300 MPa

400 MPa

4

# When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as

Lap joint

Butt joint

Single riveted single cover butt joint

Double riveted double cover butt joint

4

# The efficiency of Diesel cycle increases with

Decrease in cut-off

Increase in cut-off

Constant cut-off

None of these

4

# The strain energy stored in a solid circular shaft subjected to shear stress (τ), is: (Where G = Modulus of rigidity for the shaft material)

τ²/ 2G × Volume of shaft

τ/ 2G × Volume of shaft

τ²/ 4G × Volume of shaft

τ/ 4G × Volume of shaft

4

Short columns

Long columns

Weak columns

Medium columns

4

# For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Dual cycle, Diesel cycle, Otto cycle

Otto cycle, Diesel cycle, Dual cycle

Dual cycle, Otto cycle, Diesel cycle

Diesel cycle, Otto cycle, Dual cycle

4

# The bending moment at a point on a beam is the algebraic ________ of all the moments on either side of the point.

Sum

Difference

Multiplication

None of the above

4

Greater than

Less than

Equal to

None of these

4

# The radius of the Mohrs circle in the given figure is equal to

Sum of two principal stresses

Difference of two principal stresses

Half the sum of two principal stresses

Half the difference of two principal stresses

4

1.013 bar

760 mm of Hg

1013 × 102 N/m2

All of these

4

Less than

Equal to

More than

None of these

4

# An adiabatic process is one in which

No heat enters or leaves the gas

The temperature of the gas changes

The change in internal energy is equal to the mechanical workdone

All of the above

4

Carnot cycle

Otto cycle

Joule's cycle

Stirling cycle

4

3 to 6

5 to 8

10 to 20

15 to 30

4

# The lower layer of the beam as shown in the below figure, will be

In tension

In compression

Neither in tension nor in compression

None of these

4

Diameter

Circumference

Area

4

Carnot cycle

Stirling cycle

Otto cycle

Diesel cycle

4

pv = mRT

pv = RTm

pvm = C

pv = (RT)m

4

Straight line

Parabolic

Elliptical

Cubic

4

# A cantilever beam is one which is

Fixed at both ends

Fixed at one end and free at the other end

Supported at its ends

Supported on more than two supports

4

0

1

γ

4

cv/ cp =R

cp - cv = R

cv = R/ γ-1

Both (B) and (C)

4

Plasticity

Ductility

Elasticity

Malleability

4

Sum

Difference

Product

Ratio