MCQ- STRESSES IN ROTATING DISC

MULTIPLE CHOICE QUESTIONS ON STRESSES IN ROTATING DISC

The major stresses in a rotating disc are

• σh and σl
• σh and σr
• σr and σl
• None

ANS (b)

Stresses in a rotating disc are considered only at

• Low speed
• Medium speed
• High speed
• None

ANS: (c)

Types of rotating discs are

• Solid and trapezoidal
• Hollow and trapezoidal
• Trapezoidal and square
• None

ANS (d)

Various types of rotating discs are

• Solid and trapezoidal
• Hollow and solid
• Trapezoidal and square
• None

ANS (b)

A disc of uniform strength means

1. σh = σallow
2. σl = σallow
3. σh = σl = σallow
4. None

ANS : (c )

The thickness of a uniform strength disc varies with radius as

• Linearly
• Parabolically
• Curvilinear
• None

ANS : (d)

Uniform strength disc thickness varies with radius as

• Linearly
• Parabolically
• exponentially
• None

ANS : (c)

The maximum thickness of a uniform strength disc is

• At the center
• At the outer periphery
• At the center as well as at the outer radius
• None

ANS : (a)

Hoop and radial stresses at the center of a solid disc are

• Equal
• Double
• Triple
• None

ANS: (a)

Radial and hoop stresses at the outer radius of a solid disc are

• Equal
• Double
• Triple
• None

ANS: (d)

Radial stress at the center of a solid disc is

• Maximum
• Minimum
• Zero
• None

ANS:(a)

• Maximum
• Minimum
• Zero
• None

ANS: (c)

• Maximum
• Minimum
• Zero
• None

ANS:(c)

• Maximum
• Minimum
• Zero
• None

ANS: (c)

Hoop stress at the center of a rotating hollow disc is

• Equal to the radial stress
• Less than the radial stress
• Greater than the radial stress
• None

ANS: (c)

Hoop stress at the outer radius of a rotating hollow disc is

• Equal to the radial stress
• Less than the radial stress
• Greater than the radial stress
• None

ANS: (c)