**981. The forces acting normally on the cross sec- Fig. 21.1 don of a bar shown in Fig. 21.2 introduce**

A. compressive streSs**B. tensile stress**

C. shear stress

D. none of these.

**982. The forces acting on the bar as shown in Fig. 21.3 introduce**

A. compressive stress

B. tensile stress**C. shear stress**

D. none of these.

**983. Stress may be defined as**

A. force per unit length

B. force per unit volume**C. force per unit area**

D. none of these.

**984. Stress may be expressed in Newtons****A. per millimetre square (N/mm2)**

B. per centimetre square (N/cm2)

C. per metre square (N/m2)

D. none of these.

**985. If P is principal amount, i is the rate of interest and n is the number of periods in years, then the interest factor is:****A. (1 + ni)**

B. (ni ? 1)

C. ni

D. None of these

**986. The interest calculated on the basis of 365 days a year, is known as :**

A. interest

B. ordinary simple interest**C. exact simple interest**

D. None of these

**987. The product of CAF (S P) and PWF (SP) is :**

A. 1/2**B.1**

C. 1/3

D.4

**988. Annuities involve :**

A. a series of payments

B. all payments of equal amount

C. payment at equal time intervals**D. All of these**

**989. The annuity which refers to a debt payment for recovering the initial amount or capital in equal periodic payments, is known as ;**

A. Present Worth Annuity

B. Sinking fund annuity

C. Compound annuity**D. Capacity recovery annuity**

**990. If a seller recovers his capital along with accumulated compensating interest not in one single lumpsum payment but in periodical equal payments, over time :****A. Capital Recovery Annuity is availed**

B. Present work Annuity is availed

C. Sinking Fund Annuity is availed

D. Sinking Fund Annuity is availed

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